AbsListView.java revision 0a77ce277c6ed2aa25bbea5f8cd5687c0720cb68
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 /** 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 608d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 612d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 613d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 614df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 615d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 616d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 617d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 618d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 619d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6204296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6214296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6224296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6234296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 6240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 6250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 6260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 628d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 6310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell public void setOverscrollMode(int mode) { 6320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mode != OVERSCROLL_NEVER) { 6330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop == null) { 6340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Resources res = getContext().getResources(); 6350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Drawable edge = res.getDrawable(R.drawable.edge_light); 6360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 6370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = new EdgeGlow(edge, glow); 6380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = new EdgeGlow(edge, glow); 6390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 6410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop = null; 6420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom = null; 6430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell super.setOverscrollMode(mode); 6450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 6460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 647d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 6480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 6490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 6510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 7000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 8096bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 925f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1005d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1006d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 10120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 11190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 11200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 11400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 11410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 11420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 11430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 11440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Compensate for overscroll 11450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 11460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 11470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 11480b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 11490b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 11500b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1201d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1202d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1203d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1204d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1209f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1210f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1211f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1212f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1213f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1214f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1215f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1216f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 12190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 12200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1230d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1231d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1232d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1233d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1234d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1235d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1236d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1237d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1243d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1244d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1245d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 134821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 134921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 135021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 135321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 135421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 138221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1383a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1384a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1455d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1550df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1551df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1552df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1553df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1561ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1562ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1563ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1564ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1571df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1572df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1646d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1647d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1648d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16561f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 16571f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 16581f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 165921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 166021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 166121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1665d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1666d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1667d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1668d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1680670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1681670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1682670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1683670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1684670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 1687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1689670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 169897566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 17440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1763005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 1764005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 1765005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 1766005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 1767005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 1768005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1867df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1868df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1869df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1870df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1871df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1876dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1877dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1878dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1879df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1880dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1882dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 188445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 188545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 188645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 188745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1891dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 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 } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 19960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final boolean overscroll = mScrollY != 0; 19970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscroll || distance > mTouchSlop) { 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 19990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 20360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int touchMode = mTouchMode; 20370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 20380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable != null) { 20390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 20420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScrollY != 0) { 20430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 20440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 20450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2052dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2053dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2054dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2055dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2056dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2057dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 206482f3495b146b267f3786997752cef25310176349Romain Guy 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 20770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 20780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 20790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.endFling(); 20800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 20810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = mLastY = (int) ev.getY(); 20820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 20830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 20840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 20850a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20870a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: { 20880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mActivePointerId = ev.getPointerId(0); 20890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int x = (int) ev.getX(); 20900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int y = (int) ev.getY(); 20910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionPosition = pointToPosition(x, y); 20920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mDataChanged) { 20930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 20940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell && (getAdapter().isEnabled(motionPosition))) { 20950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 20960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // click or a scroll. Assume it is a click until proven otherwise 20970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_DOWN; 20980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // FIXME Debounce 20990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mPendingCheckForTap == null) { 21000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mPendingCheckForTap = new CheckForTap(); 21010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 21030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 21050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we couldn't find a view to click on, but the down event was touching 21060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // the edge, we will bail out and try again. This allows the edge correcting 21070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // code in ViewRoot to try to find a nearby view to select 21080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return false; 21090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mTouchMode == TOUCH_MODE_FLING) { 21120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Stopped a fling. It is a scroll. 21130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell createScrollingCache(); 21140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 21150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 21160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionPosition = findMotionRow(y); 21170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 212079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 21219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 21220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionPosition >= 0) { 21230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Remember where the motion event started 21240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell v = getChildAt(motionPosition - mFirstPosition); 21250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = v.getTop(); 21260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionX = x; 21280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 21290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 21300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = Integer.MIN_VALUE; 21310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 21320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 21384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 21394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2158110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2159110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2160110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2161110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2162110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2163110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2164110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2165110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 21660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 216979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 21700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionIndex; 21710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mMotionPosition >= 0) { 21720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = mMotionPosition - mFirstPosition; 21730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 21740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // If we don't have a motion position that we can reliably track, 21750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // pick something in the middle to make a best guess at things below. 21760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionIndex = getChildCount() / 2; 21770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21780a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21790a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int motionViewPrevTop = 0; 21800a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(motionIndex); 21810a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 21820a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionViewPrevTop = motionView.getTop(); 21830a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 21840a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 21856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 21876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 21896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 21920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = this.getChildAt(motionIndex); 21930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 21940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check if the top of the motion view is where it is 21950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // supposed to be 21960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionViewRealTop = motionView.getTop(); 21970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEdge) { 21980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Apply overscroll 21990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overscroll = -incrementalDeltaY - 22010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (motionViewRealTop - motionViewPrevTop); 22020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overscroll, 0, mScrollY, 0, 0, 22030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 22090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 22100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 22120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 22140a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 221679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2217b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2218b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 221979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 222079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 222179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 222279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 22250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (y != mLastY) { 22260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int rawDeltaY = deltaY; 22270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell deltaY -= mMotionCorrection; 22280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 22290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int oldScroll = mScrollY; 22310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int newScroll = oldScroll - incrementalDeltaY; 22320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if ((oldScroll >= 0 && newScroll <= 0) || 22340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (oldScroll <= 0 && newScroll >= 0)) { 22350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Coming back to 'real' list scrolling 22360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY = -newScroll; 22370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = 0; 22380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // No need to do all this work if we're not going to move anyway 22400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (incrementalDeltaY != 0) { 22410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 22420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we are back in 22450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 22470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 22480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // We did not scroll the full amount. Treat this essentially like the 22500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // start of a new touch scroll 22510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int motionPosition = findClosestMotionRow(y); 22520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 22530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 22540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView = getChildAt(motionPosition - mFirstPosition); 22550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionViewOriginalTop = motionView.getTop(); 22560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionY = y; 22570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionPosition = motionPosition; 22580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 22600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 22610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverscrollDistance, true); 22620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 22630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (rawDeltaY > 0) { 22640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 22650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else if (rawDeltaY < 0) { 22660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 22670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 22690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 22710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Don't allow overfling if we're at the edge. 22720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 22730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22750a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mLastY = y; 22760a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 22770a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2313005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2314005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23236198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2336005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2337005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2340005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2341005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 23476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 23486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 23490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int firstChildTop = getChildAt(0).getTop(); 23500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 23510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentTop = mListPadding.top; 23520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int contentBottom = getHeight() - mListPadding.bottom; 23530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 23546198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 23550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom <= getHeight() - contentBottom) { 23566198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 23576198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23586198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 23596198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 23606198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 23614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 23620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Fling if we have enough velocity and we aren't at a boundary. 23640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Since we can potentially overfling more than we can overscroll, don't 23650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // allow the weird behavior where you can scroll to a boundary then 23660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // fling further. 23670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 23680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell !((mFirstPosition == 0 && 23690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell firstChildTop == contentTop - mOverscrollDistance) || 23700a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell (mFirstPosition + childCount == mItemCount && 23710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 23726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 23736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 23746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 23756198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 237679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 23776198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2378f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2379f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2380f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 238779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 23880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23890a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 23900a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 23910a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 23920a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 23930a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final VelocityTracker velocityTracker = mVelocityTracker; 23940a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 23950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 23960a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 23970a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 23980a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 23990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startOverfling(-initialVelocity); 24000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 24010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24130a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 24160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 24390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell switch (mTouchMode) { 24400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERSCROLL: 24410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mFlingRunnable == null) { 24420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable = new FlingRunnable(); 24430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFlingRunnable.startSpringback(); 24450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: 24480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Do nothing - let it play out. 24490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell default: 24520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 24530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell setPressed(false); 24540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 24550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 24560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell motionView.setPressed(false); 24570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell clearScrollingCache(); 24590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final Handler handler = getHandler(); 24610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (handler != null) { 24620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell handler.removeCallbacks(mPendingCheckForLongPress); 24630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 24650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 24660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.recycle(); 24670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker = null; 24680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 24720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onRelease(); 24730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onRelease(); 24740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 24754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 24764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 24774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 24784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 24794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 24804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 24814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 24824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 24834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 24844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 24854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 24864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 24874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 24884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 24894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 24904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 24914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24990a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell protected void onOverscrolled(int scrollX, int scrollY, 25000a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell boolean clampedX, boolean clampedY) { 25010a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScrollY = scrollY; 25020a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (clampedY) { 25040a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 25050a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mVelocityTracker != null) { 25060a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mVelocityTracker.clear(); 25070a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25080a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25090a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell awakenScrollBars(); 25100a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25110a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25120a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell @Override 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 25150a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 25160a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowTop.isFinished()) { 25180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(-width / 2, scrollY); 25220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.setSize(width * 2, getHeight()); 25230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop.draw(canvas)) { 25240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (!mEdgeGlowBottom.isFinished()) { 25290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int restoreCount = canvas.save(); 25300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int width = getWidth(); 25310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int height = getHeight(); 25320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 25330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(-width / 2, scrollY + height); 25340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.rotate(180, width, 0); 25350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.setSize(width * 2, height); 25360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowBottom.draw(canvas)) { 25370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 25380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 25440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scrollY != 0) { 25450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Pin to the top/bottom during overscroll 25460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int restoreCount = canvas.save(); 25470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.translate(0, (float) scrollY); 25480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell canvas.restoreToCount(restoreCount); 25500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 25510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mFastScroller.draw(canvas); 25520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 25600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 257079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 25710a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 25720a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 25730a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return true; 25740a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 257579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 25764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 25774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 25784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 25794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 258179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 259379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 25944b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 25954b4f40f84e72579417604143e5f42115769649b8Romain Guy } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 26034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 26204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 26214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 26294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 26304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 26314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 26324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 26334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 26344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 26354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 26364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 26374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 26384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 26390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mMotionCorrection = 0; 26404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 26414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 26424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 26434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26950a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell private final OverScroller mScroller; 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 270279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 27030a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller = new OverScroller(getContext()); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 270679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startSpringback() { 27230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mScroller.springback(0, mScrollY, 0, 0, 0, 0)) { 27240a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_REST; 27290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void startOverfling(int initialVelocity) { 27330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 27340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 27350a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 27360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27370a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27380a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27390a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27400a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 27410a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell void edgeReached(int delta) { 27420a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 27430a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mTouchMode = TOUCH_MODE_OVERFLING; 27440a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (mEdgeGlowTop != null) { 27450a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int vel = (int) mScroller.getCurrVelocity(); 27460a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (delta > 0) { 27470a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowTop.onAbsorb(vel); 27480a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 27490a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell mEdgeGlowBottom.onAbsorb(vel); 27500a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27510a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 27530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 27540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 27550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 277079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2772458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 277879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 277979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 278179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 278279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 278379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 278479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 278579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 278679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27880a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 278979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 279079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 279379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 279479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 279679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 279779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 279879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 279979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 280079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 280179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 280379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 280479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 280579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 280679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 280779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 280879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 281079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 281179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 281379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 281479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 281579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28170a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Check to see if we have bumped into the scroll limit 28180a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 28190a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int oldTop = 0; 28200a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28210a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell oldTop = motionView.getTop(); 28220a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28230a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 2824a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 28250a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (atEnd) { 28260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (motionView != null) { 28270a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell // Tweak the scroll for how far we overshot 28280a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 28290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell overscrollBy(0, overshoot, 0, mScrollY, 0, 0, 28300a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false); 28310a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell edgeReached(delta); 28330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 28340a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2836a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 283779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 283879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 283979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 284079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 284179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 284279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 284379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 284479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 284579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 284679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 284779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 285079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28520a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 28530a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell case TOUCH_MODE_OVERFLING: { 28540a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final OverScroller scroller = mScroller; 28550a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (scroller.computeScrollOffset()) { 28560a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int scrollY = mScrollY; 28570a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell final int deltaY = scroller.getCurrY() - scrollY; 28580a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (overscrollBy(0, deltaY, 0, scrollY, 0, 0, 28590a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell 0, mOverflingDistance, false)) { 28600a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell startSpringback(); 28610a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 28620a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell invalidate(); 28630a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell post(this); 28640a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28650a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } else { 28660a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell endFling(); 28670a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 28680a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell break; 28690a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell } 287079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 287179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 288952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2933fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 2934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2949fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 2950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 2957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 2958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 2961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 2977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 29940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 29950b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 29960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 29970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3009029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3011029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 30157e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3023029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3024029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3025029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3026029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 30417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 30640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 30650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 30660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3068029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3070029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30747e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 30987e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 31686dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 31696dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 31706dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 31716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 31726dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 31736dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 31746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 31756dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 31766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31776dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 31786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 31796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31806dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31816dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 31826dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31846dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32260a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && incrementalDeltaY >= 0) { 3227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32290a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32320a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && 32330a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell incrementalDeltaY <= 0) { 3234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 32360a77ce277c6ed2aa25bbea5f8cd5687c0720cb68Adam Powell return incrementalDeltaY != 0; 3237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3241029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3242029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3243029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3244029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3307029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3315029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 33162a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 33172a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 33182a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 33192a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3320029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3321029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3362ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3363ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3364ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 33944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 33974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 33984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 33994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 34004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 34014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 34024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 34034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 34044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 34054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 34064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 34074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 34084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 34104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 34114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 34124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 365043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 365143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 365243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 365343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 365443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 365543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 365643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 365743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 365843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 365943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 366043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 366143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 366243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 366343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 366424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 366543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 366643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3670d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 36824df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3683b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 369324443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3696b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3765b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 378183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 37828d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 37838d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 37848d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 378583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 378683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 378783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 378883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 378983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 379083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3796cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3800b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3805105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3827b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3828b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3829b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3830b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3831c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3832c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3833c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3834c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3835c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 38361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 38371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 38381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 38391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 38401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 38421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 38431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 38441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 38451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 38471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 38491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 38501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 38511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 38521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 38531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 38541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 38551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 38561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 38571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 38591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 38611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 38631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 38641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 38651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 38661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 38671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 38681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 38691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 38711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 38721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 38731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 38741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 38751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3876c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3877c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3878b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 38790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3880b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3881b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3882b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3883b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3884b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3885b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3886b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3887b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 38880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3889b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 38984df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 38994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3902b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3903b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3904b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3905b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3906b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3907105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3918d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 395024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 395543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 39641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 39711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 39721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3975c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 39841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 40021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 406552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 406652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 406752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 406852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 406952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 407052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 407152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 407252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 409913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 411413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 411513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 411613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 411713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 411813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 411913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 412013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 412113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 412213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 412313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 412413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 412513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 412613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 412713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 412813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 412952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 413013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 413113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 413213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 413313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 413413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 413513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 413613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 413713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 413813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 413913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 414013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 414113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 414213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 414313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 414413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 414513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 414613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 414713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 414813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 414913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 415013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 415113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 415213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 415313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 415413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 415513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 415613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 415752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 415813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 415913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 416113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 416252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 416313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 416413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 416713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 416813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 416913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 417013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4193bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 41949bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 41959bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 41969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 42004df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 42014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 42024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 42034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 42044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4205bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 42074df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 42080bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 42090bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 42100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 42110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 42120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 42130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 42140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 42150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4216bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 42170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 42180bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4304f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4305f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4306f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4307f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4308f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4309f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4310f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4311f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4312f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4313f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4314f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4315f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4316f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4317f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4318f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4319f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4320f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4321f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4322f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 43230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 43669c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 43689c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 43714df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 44359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44369b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 44379b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4442a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4445a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4464a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 446721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44719b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 44739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 44749b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 44759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4482a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 453452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 453552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 453652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 453752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 453852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 453952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 454052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 454152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 454252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 454352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 454452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 454552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 454652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 454752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 454852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 454952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 455052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 455152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 455252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 455352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 455452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 455552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 455652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 455752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 455852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 455952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 456052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 456152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 456252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 456352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 456452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 456552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 456652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4569