AbsListView.java revision 79ac3395b58de5b99f0bb43d8950f6b95348326d
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport com.android.internal.R; 2079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport android.util.Log; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 4779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 49b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 50b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 58d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 59d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 60d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener { 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 12479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 13279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell */ 13379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 13479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 13579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell /** 13679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * Indicates the view is being flung outside of normal content bounds 13779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * and will spring back. 13879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell */ 13979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 14079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 14179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell /** 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 439d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 441d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 4451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 4466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 4484296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 4494296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 45021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 45121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 4526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 5460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 552d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 556d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 557d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 558df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 559d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 560d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 561d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 562d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 563d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5644296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 5654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 5664296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 5674296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 568d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 5700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 5720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 5730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 5750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 6240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 7336bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 849f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 929d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 930d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 9360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Math.max(firstPosition * 100 - (top * 100) / height, 0); 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled ? Math.max(mItemCount * 100, 0) : mItemCount; 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1114d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1115d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1116d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1117d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1133d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1134d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1135d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1136d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1137d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1138d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1139d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1140d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1146d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1147d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1148d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 125121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 125221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 125321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 125621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 125721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 128521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 128621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = true; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1357d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1452df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1453df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1454df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1455df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1463ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1464ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1465ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1466ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1473df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1474df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1548d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1549d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1550d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15581f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 15591f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 15601f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 156121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 156221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 156321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1567d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1568d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1570d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1582670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1583670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1584670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1585670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1586670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1587670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 16420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && mItemCount > 0 && 1662c7426628dfcf5f667ef398235a70de37be3df01fAdam Powell mClickMotionPosition != INVALID_POSITION && 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition < mAdapter.getCount() && sameWindow()) { 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(mChild, mClickMotionPosition, getAdapter().getItemId( 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition)); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 16790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1764df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1765df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1766df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1767df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1768df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1773dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1774dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1775dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1776df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1777dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1779dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(view, mSelectedPosition, mSelectedRowId); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) view.setPressed(false); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1786dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (distance > mTouchSlop) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 193079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 193179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 193279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 193379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY = 0; 193479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable != null) { 193579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.endFling(); 193679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 193779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 1943dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1944dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 1945dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 1946dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 1947dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1948dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 195582f3495b146b267f3786997752cef25310176349Romain Guy 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 197079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 197179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: { 197279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.endFling(); 197379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 197479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 197579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionCorrection = 0; 197679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 197779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 197879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 197979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: { 198079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int motionPosition = pointToPosition(x, y); 198179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (!mDataChanged) { 198279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 198379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 198479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 198579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 198679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 198779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // FIXME Debounce 198879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mPendingCheckForTap == null) { 198979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mPendingCheckForTap = new CheckForTap(); 199079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 199179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 199279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 199379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 199479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // If we couldn't find a view to click on, but the down event was touching 199579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 199679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // code in ViewRoot to try to find a nearby view to select 199779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return false; 199879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 199979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // User clicked on whitespace, or stopped a fling. It is a scroll. 200079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell createScrollingCache(); 200179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 200279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionCorrection = 0; 200379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionPosition = findMotionRow(y); 200479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 200879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionPosition >= 0) { 200979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Remember where the motion event started 201079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 201179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = v.getTop(); 201279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionX = x; 201379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionY = y; 201479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = motionPosition; 201579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 201679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = Integer.MIN_VALUE; 201779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 201879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 204479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 204579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int motionViewPrevTop = 0; 204679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 204779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 204879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionViewPrevTop = motionView.getTop(); 204979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 20506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 20516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 20526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy trackMotionScroll(deltaY, incrementalDeltaY); 20536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 205679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionView = this.getChildAt(mMotionPosition - mFirstPosition); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if the top of the motion view is where it is 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // supposed to be 206079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int motionViewRealTop = motionView.getTop(); 206179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int motionViewNewTop = mMotionViewNewTop; 206279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionViewRealTop != motionViewNewTop) { 206379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Apply overscroll 206479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 206579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY -= incrementalDeltaY - (motionViewRealTop - motionViewPrevTop); 206679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 206779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 206879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 206979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 207079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 207179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 207279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 207379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 207479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 207579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (y != mLastY) { 207679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell deltaY -= mMotionCorrection; 207779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 207879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 207979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int oldScroll = mScrollY; 208079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 208179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 208279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if ((oldScroll >= 0 && newScroll <= 0) || 208379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell (oldScroll <= 0 && newScroll >= 0)) { 208479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Coming back to 'real' list scrolling 208579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell incrementalDeltaY = -newScroll; 208679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY = 0; 208779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 208879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // No need to do all this work if we're not going to move anyway 208979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (incrementalDeltaY != 0) { 209079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 209179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 209279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 209379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Check to see if we are back in 209479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 209579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 209679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int topOffset = motionView.getTop() - mMotionViewNewTop; 209779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 209879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We did not scroll the full amount. Treat this essentially like the 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // start of a new touch scroll 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = findMotionRow(y); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView = getChildAt(motionPosition - mFirstPosition); 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = motionView.getTop(); 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 210979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 211079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY -= incrementalDeltaY; 211179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = y; 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21616198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 21856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 21866198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 21876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 21886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 21896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 21906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 21916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 21926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 21936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 21946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 21956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 21966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int initialVelocity = (int) velocityTracker.getYVelocity(); 21976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 21986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 21996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 22006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 22016198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 220379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2205f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2206f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2207f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 221479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 221579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 221679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 221779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable == null) { 221879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable = new FlingRunnable(); 221979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 222079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 222179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 222279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(); 222379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 222479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 222579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 222679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 222779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 222879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startSpringback(); 222979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 223079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 223179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 22380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 225979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 226079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 226179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable == null) { 226279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable = new FlingRunnable(); 226379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 226479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startSpringback(); 226579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 226679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 226779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: 226879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Do nothing - let it play out. 226979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 227079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 227179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 227279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_REST; 227379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell setPressed(false); 227479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 227579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 227679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionView.setPressed(false); 227779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 227879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell clearScrollingCache(); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 228079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final Handler handler = getHandler(); 228179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (handler != null) { 228279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 228379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 228579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mVelocityTracker != null) { 228679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mVelocityTracker.recycle(); 228779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mVelocityTracker = null; 228879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.draw(canvas); 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x = (int) ev.getX(); 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int y = (int) ev.getY(); 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 23100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 232079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 232179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 232279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return true; 232379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 232479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 232679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 233879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 23394b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 23404b4f40f84e72579417604143e5f42115769649b8Romain Guy } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 241379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell private OverScroller mScroller; 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 242079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 242179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScroller = new OverScroller(getContext()); 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 242479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 243979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 244079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void startSpringback() { 244179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mScroller.springback(0, mScrollY, 0, 0, 0, 0)) { 244279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 244379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 244479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 244579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 244679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 244779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 244879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void startOverfling(int initialVelocity) { 244979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 0, 0, 0, getHeight()); 245079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 245179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 245279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 245379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 245479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 245979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 246379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 246479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 246679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 246779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 246879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 246979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 247079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 247179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 247379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final OverScroller scroller = mScroller; 247479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 247579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 247779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 247879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 247979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 248179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 248279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 248379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 248479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 248579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 248679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 248879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 248979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 249079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 249179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 249279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 249379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 249679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 249979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 250079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 250279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Do something different on overscroll - offsetChildrenTopAndBottom() 250379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell trackMotionScroll(delta, delta); 250479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 250579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Check to see if we have bumped into the scroll limit 250679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 250779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 250879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Check if the top of the motion view is where it is 250979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // supposed to be 251079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView.getTop() != mMotionViewNewTop) { 251179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell float vel = scroller.getCurrVelocity(); 251279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 251379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell vel = -vel; 251479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 251579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell startOverfling(Math.round(vel)); 251679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 251779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 252079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (more) { 252179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 252279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 252379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 252479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 252579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 252679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 252779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 252879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 252979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 253079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 253179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 253479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 253679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 253779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: { 253879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final OverScroller scroller = mScroller; 253979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (scroller.computeScrollOffset()) { 254079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY = scroller.getCurrY(); 254179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 254279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 254379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 254479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 254579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 254679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 254779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 254879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 254979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 25626dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 25636dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 25646dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 25656dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 25666dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 25676dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 25686dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 25696dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 25706dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 25716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 25726dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 25736dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 25746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 25756dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 25766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy void trackMotionScroll(int deltaY, int incrementalDeltaY) { 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (spaceAbove >= absIncrementalDeltaY && spaceBelow >= absIncrementalDeltaY) { 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetChildrenTopAndBottom(incrementalDeltaY); 2622f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron if (!awakenScrollBars()) { 2623f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron invalidate(); 2624f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron } 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0 && firstTop >= listPadding.top && deltaY > 0) { 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't need to move views down if the top of the first position is already visible 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY < 0) { 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't need to move views up if the bottom of the last position is already visible 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean down = incrementalDeltaY < 0; 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int headerViewsCount = getHeaderViewsCount(); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int footerViewsStart = mItemCount - getFooterViewsCount(); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start = 0; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = 0; 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (down) { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = listPadding.top - incrementalDeltaY; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getBottom() >= top) { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = firstPosition + i; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= headerViewsCount && position < footerViewsStart) { 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(child); 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstPosition + i, -1); 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getTop() <= bottom) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = i; 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = firstPosition + i; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= headerViewsCount && position < footerViewsStart) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(child); 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstPosition + i, -1); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBlockLayoutRequests = true; 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetChildrenTopAndBottom(incrementalDeltaY); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (down) { 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition += count; 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fillGap(down); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBlockLayoutRequests = false; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 2707f116bf8884b5b58aae261d148003811aa4a7c6e9Mike Cleron awakenScrollBars(); 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the first (or only) item in the row closest to y 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 301243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 301343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 301443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 301543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 301643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 301743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 301843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 301943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 302043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 302143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 302243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 302343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 302443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 302543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 302643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 302743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 302843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3032d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 30444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3045b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3051b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 305524443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3058b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 30729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3127b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 314383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 31448d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 31458d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 31468d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 314783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 314883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 314983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 315083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 315183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 315283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3158cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3162b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3167105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3190b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3191b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3192b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3193c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3194c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3195c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3196c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3197c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 31981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 31991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 32001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 32011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 32021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 32041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 32051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 32061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 32071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 32091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 32111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 32121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 32131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 32141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 32151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 32161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 32171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 32181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 32191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 32211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 32231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 32251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 32271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 32281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 32291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 32301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 32311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 32331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 32351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 32361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 32371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3238c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3239c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3240b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 32410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3242b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3243b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3244b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3245b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3246b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3247b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3248b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3249b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 32500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3251b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 32604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 32614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3264b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3265b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3266b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3267b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3268b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3269105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3280d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && mPopup != null && !mPopup.isShowing()) { 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 331743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 33261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 33331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 33341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3337c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 33461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 33641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 342752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 342852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 342952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 343052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 343152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 343252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 343352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 343452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 346113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 347613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 347713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 347813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 347913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 348013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 348113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 348213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 348313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 348413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 348513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 348613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 348713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 348813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 348913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 349013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 349113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 349213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 349313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 349413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 349513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 349613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 349713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 349813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 349913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 350013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 350113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 350213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 350313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 350413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 350513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 350613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 350713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 350813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 350913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 351013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 351113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 351213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 351313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 351413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 351513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 351613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 351713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 351813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 351913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 352013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 352113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 352313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 352413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 352513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 352613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 352913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 353013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 353113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 353213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35574df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 35584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 35594df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 35604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 35614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 35624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 35634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 35644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 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 /** 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams)child.getLayoutParams(); 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && lp.viewType != AdapterView.ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 36984df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 376218d1255ebe83d73df34832f2197a1e51ea717b96Romain Guy removeDetachedView(scrap, false); 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 379021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap == AdapterView.ITEM_VIEW_TYPE_IGNORE) { 379521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy removeDetachedView(victim, false); 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 385452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 385552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 385652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 385752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 385852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 385952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 386052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 386152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 386252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 386352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 386452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 386552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 386652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 386752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 386852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 386952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 387052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 387152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 387252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 387352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 387452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 387552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 387652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 387752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 387852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 387952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 388052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 388152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 388252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 388352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 388452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 388552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 388652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3889