AbsListView.java revision 5916882c3f13429d29f95b89dd94bd2d5733da85
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 /** 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 622d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 626d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 628df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 630d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 631d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 632d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 633d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6344296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6354296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6364296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6374296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 6380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 6390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 6400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 641d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 642d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 6450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell public void setOverscrollMode(int mode) { 6460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mode != OVERSCROLL_NEVER) { 6470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop == null) { 6480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Resources res = getContext().getResources(); 6495916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 6500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 6510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = new EdgeGlow(edge, glow); 6520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = new EdgeGlow(edge, glow); 6530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 6550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = null; 6560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = null; 6570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell super.setOverscrollMode(mode); 6590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 661d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 6620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 6630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 6650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 7140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 8236bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 939f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1019d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1020d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 10260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10610a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 11340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 11540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 11550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 11560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 11570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 11580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Compensate for overscroll 11590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 11600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 11610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 11620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 11630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 11640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 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 + count - 1 < mItemCount - 1) { 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 bottom = getChildAt(count - 1).getBottom(); 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1215d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1216d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1217d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1218d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1223f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1224f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1225f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1226f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1227f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1228f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1229f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1230f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 12330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 12340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1244d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1245d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1246d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1247d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1248d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1249d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1250d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1251d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1257d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1258d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1259d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 136221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 136321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 136421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 136721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 136821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 139621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1397a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1398a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1469d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1564df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1565df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1566df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1567df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1575ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1576ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1577ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1578ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1585df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1586df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1660d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1661d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1662d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16701f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 16711f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 16721f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 167321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 167421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 167521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1679d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1680d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1681d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1694670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1695670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1696670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1697670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1698670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 17015916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 1702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1704670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 171397566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 17590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1778005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1779005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1780005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1781005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1782005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1783005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1882df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1883df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1884df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1885df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1886df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1891dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1892dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1893dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1894df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1895dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1897dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 189945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 190045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 190145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 190245b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1906dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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 private boolean startScrollIfNeeded(int deltaY) { 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 20110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final boolean overscroll = mScrollY != 0; 20120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscroll || distance > mTouchSlop) { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 20140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 20510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int touchMode = mTouchMode; 20520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 20530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable != null) { 20540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 20570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 20580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 20595916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell finishGlows(); 20600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 20610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2068dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2069dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2070dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2071dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2072dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2073dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 208082f3495b146b267f3786997752cef25310176349Romain Guy 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 20930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 20940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 20950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 20970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = mLastY = (int) ev.getY(); 20980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 20990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: { 21040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 21050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int x = (int) ev.getX(); 21060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int y = (int) ev.getY(); 21070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionPosition = pointToPosition(x, y); 21080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mDataChanged) { 21090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 21100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell && (getAdapter().isEnabled(motionPosition))) { 21110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 21120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // click or a scroll. Assume it is a click until proven otherwise 21130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_DOWN; 21140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // FIXME Debounce 21150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mPendingCheckForTap == null) { 21160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mPendingCheckForTap = new CheckForTap(); 21170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 21190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 21210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we couldn't find a view to click on, but the down event was touching 21220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // the edge, we will bail out and try again. This allows the edge correcting 21230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // code in ViewRoot to try to find a nearby view to select 21240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return false; 21250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mTouchMode == TOUCH_MODE_FLING) { 21280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Stopped a fling. It is a scroll. 21290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell createScrollingCache(); 21300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 21310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionPosition = findMotionRow(y); 21330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 213679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 21379d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 21380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionPosition >= 0) { 21390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Remember where the motion event started 21400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell v = getChildAt(motionPosition - mFirstPosition); 21410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = v.getTop(); 21420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionX = x; 21440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 21450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 21460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = Integer.MIN_VALUE; 21470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 21544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 21554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2174110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2175110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2176110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2177110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2178110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2179110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2180110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2181110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 21820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 218579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 21860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionIndex; 21870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mMotionPosition >= 0) { 21880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = mMotionPosition - mFirstPosition; 21890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we don't have a motion position that we can reliably track, 21910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // pick something in the middle to make a best guess at things below. 21920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = getChildCount() / 2; 21930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionViewPrevTop = 0; 21960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(motionIndex); 21970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 21980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionViewPrevTop = motionView.getTop(); 21990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22016198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 22036198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 22056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 22080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = this.getChildAt(motionIndex); 22090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check if the top of the motion view is where it is 22110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // supposed to be 22120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionViewRealTop = motionView.getTop(); 22130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEdge) { 22140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Apply overscroll 22150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overscroll = -incrementalDeltaY - 22170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (motionViewRealTop - motionViewPrevTop); 22180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overscroll, 0, mScrollY, 0, 0, 22190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 22250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 22260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 22280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 22300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 223279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2233b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2234b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 223579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 223679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 223779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 223879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 22410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (y != mLastY) { 22420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell deltaY -= mMotionCorrection; 22440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 22450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int oldScroll = mScrollY; 22470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int newScroll = oldScroll - incrementalDeltaY; 22480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((oldScroll >= 0 && newScroll <= 0) || 22500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (oldScroll <= 0 && newScroll >= 0)) { 22510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Coming back to 'real' list scrolling 22520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY = -newScroll; 22530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 22540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // No need to do all this work if we're not going to move anyway 22560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (incrementalDeltaY != 0) { 22570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 22580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we are back in 22610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 22640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // We did not scroll the full amount. Treat this essentially like the 22660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // start of a new touch scroll 22670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionPosition = findClosestMotionRow(y); 22680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 22700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = getChildAt(motionPosition - mFirstPosition); 22710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = motionView.getTop(); 22720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 22730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 22740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 22760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 22770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 22790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 22810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 22830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 22850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = y; 22920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2329005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2330005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2352005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2353005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2356005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2357005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 23636198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 23646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 23650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int firstChildTop = getChildAt(0).getTop(); 23660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 23670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentTop = mListPadding.top; 23680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentBottom = getHeight() - mListPadding.bottom; 23690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 23706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 23710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom <= getHeight() - contentBottom) { 23726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 23736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 23756198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 23766198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 23774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 23780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Fling if we have enough velocity and we aren't at a boundary. 23800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Since we can potentially overfling more than we can overscroll, don't 23810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // allow the weird behavior where you can scroll to a boundary then 23820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // fling further. 23830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 23840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell !((mFirstPosition == 0 && 23850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell firstChildTop == contentTop - mOverscrollDistance) || 23860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (mFirstPosition + childCount == mItemCount && 23870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 23886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 23896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 23906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 23916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 239279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 23936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2394f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2395f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2396f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 240379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 24040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final VelocityTracker velocityTracker = mVelocityTracker; 24100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 24110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 24120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 24140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 24150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startOverfling(-initialVelocity); 24160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 24170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 24320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 24550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 24560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: 24640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Do nothing - let it play out. 24650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: 24680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 24690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell setPressed(false); 24700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 24710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 24720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView.setPressed(false); 24730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell clearScrollingCache(); 24750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Handler handler = getHandler(); 24770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (handler != null) { 24780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell handler.removeCallbacks(mPendingCheckForLongPress); 24790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 24820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.recycle(); 24830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker = null; 24840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 24934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 24944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 24964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 24974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 24984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 24994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 25004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 25014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 25024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 25034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 25044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 25054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 25064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 25074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell protected void onOverscrolled(int scrollX, int scrollY, 25160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell boolean clampedX, boolean clampedY) { 25170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = scrollY; 25180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (clampedY) { 25200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 25210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 25230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell awakenScrollBars(); 25260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 25310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowTop.isFinished()) { 25340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25375916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, Math.min(0, scrollY + mFirstPositionDistanceGuess)); 25380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.setSize(width * 2, getHeight()); 25390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop.draw(canvas)) { 25400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowBottom.isFinished()) { 25450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int height = getHeight(); 25480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25495916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell canvas.translate(-width / 2, 25505916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 25510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.rotate(180, width, 0); 25520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.setSize(width * 2, height); 25530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowBottom.draw(canvas)) { 25540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scrollY != 0) { 25620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Pin to the top/bottom during overscroll 25630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int restoreCount = canvas.save(); 25640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(0, (float) scrollY); 25650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 25680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 25770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 258779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 25880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 25890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 25900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return true; 25910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 259279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 25934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 25944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 25954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 25964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 259879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 261079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 26114b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 26124b4f40f84e72579417604143e5f42115769649b8Romain Guy } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 26204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 26374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 26384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 26464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 26474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 26484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 26494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 26504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 26514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 26524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 26534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 26544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 26554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 26560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 26574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 26584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 26594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 26604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private final OverScroller mScroller; 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 271979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 27200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller = new OverScroller(getContext()); 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 272379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startSpringback() { 27400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScroller.springback(0, mScrollY, 0, 0, 0, 0)) { 27410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 27460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startOverfling(int initialVelocity) { 27500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 27510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 27520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 27530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void edgeReached(int delta) { 27590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 27600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 27620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int vel = (int) mScroller.getCurrVelocity(); 27630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (delta > 0) { 27640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onAbsorb(vel); 27650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onAbsorb(vel); 27670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 278779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 279579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 279679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 279879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 279979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 280079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 280179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 280279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 280379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 280679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 280779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 280979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 281079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 281179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 281379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 281479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 281579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 281679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 281779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 281879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 282079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 282179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 282279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 282379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 282479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 282579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 282779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 282879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 283079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 283179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 283279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we have bumped into the scroll limit 28350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 28360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int oldTop = 0; 28370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell oldTop = motionView.getTop(); 28390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2841a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 28420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEnd) { 28430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Tweak the scroll for how far we overshot 28450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 28460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overshoot, 0, mScrollY, 0, 0, 28470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false); 28480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell edgeReached(delta); 28500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 28510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2853a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 285479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 285579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 285679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 285779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 285879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 285979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 286079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 286179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 286279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 286379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 286479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 286779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 28700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 28710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 28720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scroller.computeScrollOffset()) { 28730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 28740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int deltaY = scroller.getCurrY() - scrollY; 28750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscrollBy(0, deltaY, 0, scrollY, 0, 0, 28760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false)) { 28770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell startSpringback(); 28780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 28790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 28800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 28810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 28830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell endFling(); 28840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 28860a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 288779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 288879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 290652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2950fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2966fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 2967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 2974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 2975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 2978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 30110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 30120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 30130b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 30140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3026029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3028029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 30327e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3040029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3041029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3042029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3043029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == 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 nextView = getChildAt(nextViewIndex); 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 30587e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 30810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 30820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 30830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3085029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3087029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30917e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 31157e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 3174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 31856dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 31866dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 31876dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 31886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 31896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 31906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 31916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 31926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 31936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 31956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 31966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32435916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell // Update our guesses for where the first and last views are 32445916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition == 0) { 32455916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess = firstTop - mListPadding.top; 32465916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 32475916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 32485916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 32495916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (firstPosition + childCount == mItemCount) { 32505916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess = lastBottom + mListPadding.bottom; 32515916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } else { 32525916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mLastPositionDistanceGuess += incrementalDeltaY; 32535916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 32545916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 32550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 3256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 32620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY <= 0) { 3263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3270029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3271029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3272029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3273029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3336029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3344029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 33452a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 33462a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 33472a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 33482a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3349029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3350029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3391ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3392ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3393ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 34234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 34264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 34284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 34294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 34304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 34314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 34324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 34334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 34344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 34354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 34364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 34374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 34404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 34414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 367843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 367943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 368043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 368143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 368243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 368343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 368443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 368543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 368643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 368743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 368843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 368943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 369043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 369143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 369243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 369324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 369443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 369543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 37114df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3712b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3718b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 372224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3725b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3794b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 381083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 38118d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 38128d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 38138d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 381483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 381583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 381683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 381783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 381883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 381983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3825cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3834105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3856b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3857b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3858b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3859b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3860c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3861c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3862c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3863c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3864c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 38651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 38661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 38671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 38681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 38691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 38711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 38721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 38731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 38741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 38761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 38781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 38791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 38801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 38811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 38821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 38831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 38841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 38851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 38861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 38881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 38901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 38921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 38941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 38951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 38961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 38971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 38981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 39001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 39011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 39021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 39031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 39041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3905c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3906c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3907b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3909b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3910b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3911b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3912b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3913b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3914b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3915b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3916b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 39170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3918b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 39274df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 39284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3931b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3932b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3933b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3934b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3935b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3936105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3947d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 397924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 398443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 39931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 40001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 40011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4004c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 40131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 409452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 409552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 409652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 409752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 409852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 409952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 410052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 410152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 412813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 414313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 414413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 414513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 414613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 414713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 414813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 414913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 415013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 415113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 415213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 415313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 415413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 415513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 415613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 415713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 415852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 415913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 416013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 416113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 416413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 416513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 416613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 416713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 416813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 416913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 417013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 417113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 417213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 417313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 417413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 417513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 417613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 417713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 417813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 417913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 418013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 418113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 418213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 418313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 418413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 418513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 418652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 418713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 418813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 418913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 419013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 419152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 419213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 419313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 419413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 419513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 419613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 419713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 419813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 41995916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell private void finishGlows() { 42005916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell if (mEdgeGlowTop != null) { 42015916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowTop.finish(); 42025916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell mEdgeGlowBottom.finish(); 42035916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42045916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell } 42055916882c3f13429d29f95b89dd94bd2d5733da85Adam Powell 420613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 42309bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 42319bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 42329bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42354df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 42364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 42374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 42384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 42394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 42404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4241bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 42434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 42440bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 42450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 42460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 42470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 42480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 42490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 42500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 42510bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4252bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 42540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4340f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4341f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4342f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4343f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4344f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4345f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4346f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4347f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4348f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4349f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4350f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4351f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4352f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4353f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4354f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4355f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4356f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4357f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4358f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 43590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 44029c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 44049c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 44074df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 44719b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44729b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 44739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4478a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4481a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4500a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 450321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45079b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 45099b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 45109b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 45119b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4518a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 457052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 457152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 457252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 457352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 457452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 457552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 457652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 457752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 457852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 457952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 458052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 458152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 458252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 458352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 458452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 458552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 458652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 458752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 458852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 458952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 459052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 459152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 459252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 459352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 459452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 459552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 459652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 459752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 459852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 459952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 460052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 460152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 460252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4605