AbsListView.java revision a440b002aa59e1455bdfa2c5a1ca51c74bbc19ac
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; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 4679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 48b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 49b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 57d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 58d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 59d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener { 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 12379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 13179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell */ 13279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 13379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 13479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell /** 13579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * Indicates the view is being flung outside of normal content bounds 13679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell * and will spring back. 13779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell */ 13879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 13979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 14079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 3800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 3810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 3820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * Maximum distance to overscroll by 3830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell */ 3840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell private int mOverscrollMax; 3850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 3860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 3870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell * Content height divided by this is the overscroll limit. 3880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell */ 3890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell private static final int OVERSCROLL_LIMIT_DIVISOR = 3; 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 453d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 455d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 4591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 4606dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4616dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 4624296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 4634296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 46421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 46521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 46624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 46724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 46824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 46924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 4706dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 5640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 570d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 574d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 576df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 578d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 579d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 580d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 581d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 5834296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 5844296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 5854296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 586d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 5880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 5900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 5910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 5930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 6240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 6420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 7516bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 8039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 8139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 8349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 867f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 947d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 948d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 9540a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 10610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 10620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 10820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 10830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 10840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 10850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mScrollY != 0) { 10860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell // Compensate for overscroll 10870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 10880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 10890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 10900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 10910b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 10920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1143d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1144d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1145d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1146d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 11530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 11540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1164d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1165d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1166d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1167d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1168d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1169d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1170d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1171d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1177d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1178d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1179d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 128221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 128321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 128421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 128721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 128821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 131621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1317a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1318a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1389d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1484df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1485df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1486df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1487df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1495ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1496ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1497ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1498ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1505df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1506df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1580d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1581d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1582d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15901f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 15911f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 15921f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 159321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 159421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 159521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1599d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1600d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1601d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1602d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 1614670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 1615670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 1616670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 1617670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 1618670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 1619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 1621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 1623670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 16780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && mItemCount > 0 && 1698c7426628dfcf5f667ef398235a70de37be3df01fAdam Powell mClickMotionPosition != INVALID_POSITION && 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition < mAdapter.getCount() && sameWindow()) { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(mChild, mClickMotionPosition, getAdapter().getItemId( 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition)); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 1800df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 1801df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 1802df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1803df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 1804df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 1809dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1810dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 1811dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1812df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 1813dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 1815dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(view, mSelectedPosition, mSelectedRowId); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) view.setPressed(false); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1822dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 1927eb6b1fa7b86e529ed7de1c77fbc77ccef65bf6a9Adam Powell final boolean overscroll = mScrollY != 0; 1928eb6b1fa7b86e529ed7de1c77fbc77ccef65bf6a9Adam Powell if (overscroll || distance > mTouchSlop) { 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 1930eb6b1fa7b86e529ed7de1c77fbc77ccef65bf6a9Adam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 196679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 196779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 196879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 196979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable != null) { 197079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.endFling(); 1971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 1972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 1973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 1974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 1975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 197679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 197779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1979498b2960d541fe271cc920eb92d60060fe219b35Romain Guy mLastTouchMode = isInTouchMode ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 1984dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 1985dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 1986dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 1987dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 1988dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 1989dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 199682f3495b146b267f3786997752cef25310176349Romain Guy 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 201179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 201279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: { 201379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.endFling(); 201479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 201579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 201679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionCorrection = 0; 201779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 201879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 201979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 202079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: { 202179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int motionPosition = pointToPosition(x, y); 202279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (!mDataChanged) { 202379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 202479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 202579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 202679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // click or a scroll. Assume it is a click until proven otherwise 202779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 202879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // FIXME Debounce 202979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mPendingCheckForTap == null) { 203079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mPendingCheckForTap = new CheckForTap(); 203179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 203279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 203379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 203479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 203579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // If we couldn't find a view to click on, but the down event was touching 203679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 203779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // code in ViewRoot to try to find a nearby view to select 203879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return false; 203979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 204079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // User clicked on whitespace, or stopped a fling. It is a scroll. 204179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell createScrollingCache(); 204279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 204379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionCorrection = 0; 204479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionPosition = findMotionRow(y); 204579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 204979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionPosition >= 0) { 205079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Remember where the motion event started 205179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 205279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = v.getTop(); 205379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionX = x; 205479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionY = y; 205579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = motionPosition; 205679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 205779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = Integer.MIN_VALUE; 205879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 205979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 208579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 208679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int motionViewPrevTop = 0; 208779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 208879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 208979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionViewPrevTop = motionView.getTop(); 209079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 20926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 20946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 20966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 209979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionView = this.getChildAt(mMotionPosition - mFirstPosition); 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if the top of the motion view is where it is 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // supposed to be 210379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int motionViewRealTop = motionView.getTop(); 2104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (atEdge) { 210579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Apply overscroll 210679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 21070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int overscroll = -incrementalDeltaY - 21080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (motionViewRealTop - motionViewPrevTop); 21090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell overscrollBy(0, overscroll, 0, mScrollY, 0, 0, 21100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 0, getOverscrollMax()); 211179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 211279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 211379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 211479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 211579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 211679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 211779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 211879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 211979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 212079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (y != mLastY) { 212179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell deltaY -= mMotionCorrection; 212279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 212379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 212479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int oldScroll = mScrollY; 212579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 212679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 212779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if ((oldScroll >= 0 && newScroll <= 0) || 212879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell (oldScroll <= 0 && newScroll >= 0)) { 212979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Coming back to 'real' list scrolling 213079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell incrementalDeltaY = -newScroll; 213179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScrollY = 0; 213279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 213379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // No need to do all this work if we're not going to move anyway 213479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (incrementalDeltaY != 0) { 213579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 213679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 213779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 213879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Check to see if we are back in 213979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 214079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 214179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 214279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We did not scroll the full amount. Treat this essentially like the 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // start of a new touch scroll 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = findMotionRow(y); 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView = getChildAt(motionPosition - mFirstPosition); 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = motionView.getTop(); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 215379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 21540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell overscrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 21550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 0, getOverscrollMax()); 215679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = y; 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 22306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 22316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 22326198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 22336198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 22346198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 22356198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 22366198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 22376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22386198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 22396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 22406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 22416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int initialVelocity = (int) velocityTracker.getYVelocity(); 22426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 22436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 22446198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 22456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 22466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 224879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 22496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2250f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2251f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2252f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 225979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 226079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 226179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 226279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable == null) { 226379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable = new FlingRunnable(); 226479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 226579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 226679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 226779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(); 226879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 226979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 227079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 227179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 227279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 227379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startSpringback(); 227479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 227579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 227679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 22830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 230479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 230579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERSCROLL: 230679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingRunnable == null) { 230779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable = new FlingRunnable(); 230879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 230979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingRunnable.startSpringback(); 231079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 231179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 231279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: 231379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Do nothing - let it play out. 231479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 231579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 231679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 231779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_REST; 231879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell setPressed(false); 231979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 232079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 232179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell motionView.setPressed(false); 232279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 232379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell clearScrollingCache(); 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 232579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final Handler handler = getHandler(); 232679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (handler != null) { 232779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 232879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 233079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mVelocityTracker != null) { 233179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mVelocityTracker.recycle(); 233279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mVelocityTracker = null; 233379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 23410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell @Override 23420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell protected void onOverscrolled(int scrollX, int scrollY, 23430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell boolean clampedX, boolean clampedY) { 23440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mScrollY = scrollY; 23450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (clampedY) { 23460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell // Velocity is broken by hitting the limit; don't start a fling off of this. 23470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mVelocityTracker != null) { 23480b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell mVelocityTracker.clear(); 23490b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 23500b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 23510b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 23520b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 23530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell private int getOverscrollMax() { 23540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell final int childCount = getChildCount(); 23550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (childCount > 0) { 23560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.min(mOverscrollMax, 23570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell getChildAt(childCount - 1).getBottom() / OVERSCROLL_LIMIT_DIVISOR); 23580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 23590b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return mOverscrollMax; 23600b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 23610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 23620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23677fd28847f11f718033737976d85969869e0dc66dAdam Powell final int scrollY = mScrollY; 23687fd28847f11f718033737976d85969869e0dc66dAdam Powell if (scrollY != 0) { 23697fd28847f11f718033737976d85969869e0dc66dAdam Powell // Pin the fast scroll thumb to the top/bottom during overscroll. 23707fd28847f11f718033737976d85969869e0dc66dAdam Powell int restoreCount = canvas.save(); 23717fd28847f11f718033737976d85969869e0dc66dAdam Powell canvas.translate(0, (float) scrollY); 23727fd28847f11f718033737976d85969869e0dc66dAdam Powell mFastScroller.draw(canvas); 23737fd28847f11f718033737976d85969869e0dc66dAdam Powell canvas.restoreToCount(restoreCount); 23747fd28847f11f718033737976d85969869e0dc66dAdam Powell } else { 23757fd28847f11f718033737976d85969869e0dc66dAdam Powell mFastScroller.draw(canvas); 23767fd28847f11f718033737976d85969869e0dc66dAdam Powell } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x = (int) ev.getX(); 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int y = (int) ev.getY(); 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 23860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 239679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 239779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 239879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return true; 239979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 240079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 240279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 241479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 24154b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 24164b4f40f84e72579417604143e5f42115769649b8Romain Guy } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 248979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell private OverScroller mScroller; 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 249679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 249779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScroller = new OverScroller(getContext()); 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 250079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 251679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void startSpringback() { 251779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mScroller.springback(0, mScrollY, 0, 0, 0, 0)) { 251879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 251979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 252079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 252179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 252279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 252479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void startOverfling(int initialVelocity) { 252579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 0, 0, 0, getHeight()); 252679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 252779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 252879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 252979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 254579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 255379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 255479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 255679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 255779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 255879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 255979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 256079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 256179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 256379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final OverScroller scroller = mScroller; 256479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 256579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 256779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 256879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 256979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 257179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 257279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 257379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 257479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 257579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 257679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 257879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 257979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 258079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 258179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 258279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 258379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 258579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 258679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 258879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 258979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 259079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 259279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Check to see if we have bumped into the scroll limit 259379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 25940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int oldTop = 0; 259579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (motionView != null) { 25960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell oldTop = motionView.getTop(); 25970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 25980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (trackMotionScroll(delta, delta)) { 25990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (motionView != null) { 26000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell // Tweak the scroll for how far we overshot 2601c9fbaabc1bbf847b6e8bf2595068cbd990f3da55Adam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 2602c9fbaabc1bbf847b6e8bf2595068cbd990f3da55Adam Powell overscrollBy(0, overshoot, 0, mScrollY, 0, 0, 0, getOverscrollMax()); 26030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 26040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell float vel = scroller.getCurrVelocity(); 26050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (delta > 0) { 26060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell vel = -vel; 260779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 26080b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell startOverfling(Math.round(vel)); 26090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell break; 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 261279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (more) { 261379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 261479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 261579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 261679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 261779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 261879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 261979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 262079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 262179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 262279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 262379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 262679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 262879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 262979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_OVERFLING: { 263079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final OverScroller scroller = mScroller; 263179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (scroller.computeScrollOffset()) { 26320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell final int scrollY = mScrollY; 26330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell final int deltaY = scroller.getCurrY() - scrollY; 26340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (overscrollBy(0, deltaY, 0, scrollY, 0, 0, 0, getOverscrollMax())) { 26350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell startSpringback(); 26360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 26370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell invalidate(); 26380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell post(this); 26390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 264079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 264179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 264279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 264379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 264479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 264579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 264679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 2664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mExtraScroll; 2665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2699458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2703458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2705458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position < firstPos) { 2709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 2710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 2711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2715458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 2716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 2717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 2720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2721458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2722458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2723458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2724458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position > lastPos) { 2725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 2726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 2727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 2728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 2732458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 2733458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 2734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 2735458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 2736458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2737458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 2738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2747458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2751458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 2752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2753458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2754458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2755458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2756458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 2758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 2759458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 2762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 2763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2764458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2765458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 2766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 2767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 2768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 27690b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 27700b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 27710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 27720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2773458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2774458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2778458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2780458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2781458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2784458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2785458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + mExtraScroll, 2786458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 2789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos != mTargetPos) { 2790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 2796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 2797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mBoundPos || getChildCount() <= nextViewIndex) { 2798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 2801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 2803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 2809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 2810458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 2811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 2812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos != mBoundPos) { 2813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 2814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 2815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 2817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2819458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 2821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 2822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 2828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 2829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 28350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 28360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 28370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 2838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 2839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(firstViewTop - mExtraScroll, mScrollDuration); 2841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 2843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos != mTargetPos) { 2845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 2851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 2852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 2853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 2856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 2858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 2859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 2864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 2865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 2866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 2867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 2868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos != mBoundPos) { 2869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 2870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 2873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 2874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 2875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 2876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 2882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 2883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 2890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 2893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 2897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 2901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 2902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 2903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 2904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 2905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 2906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 2907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 2909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 2910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 2911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 2913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 2916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 2917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 2918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 2919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 2920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 2921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 2922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 2923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 2925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 2927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 29386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 29396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 29406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 29416dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 29426dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 29436dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 29446dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 29456dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 29466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 29486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 29496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29506dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 29526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY > 0) { 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY < 0) { 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell hideSelector(); 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3121ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3122ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3123ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the first (or only) item in the row closest to y 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 31999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 32009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 32529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 32539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 339243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 339343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 339443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 339543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 339643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 339743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 339843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 339943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 340043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 340143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 340243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 340343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 340443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 340543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 340643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 340724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 340843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 340943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3413d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 341724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = false; 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 34264df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3427b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3433b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 343724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3440b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3509b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 352583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 35268d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 35278d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 35288d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 352983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 353083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 353183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 353283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 353383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 353483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3540cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3544b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3549105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3571b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3572b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3573b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3574b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3575c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3576c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3577c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3578c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3579c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 35801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 35811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 35821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 35831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 35841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 35851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 35861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 35871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 35881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 35891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 35901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 35911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 35921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 35931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 35941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 35951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 35961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 35971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 35981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 35991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 36001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 36011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 36031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 36051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 36071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 36081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 36091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 36101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 36111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 36121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 36131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 36151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 36161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 36171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 36181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 36191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3620c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3621c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3622b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 36230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3624b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3625b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3626b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3627b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3628b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3629b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3630b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3631b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 36320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3633b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 36424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 36434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3646b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3647b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3648b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3649b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3650b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3651105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3662d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 369424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 369943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 37081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 37151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 37161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3719c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 37281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 37461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 380952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 381052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 381152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 381252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 381352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 381452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 381552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 381652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 384313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 385813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 385913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 386013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 386113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 386213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 386313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 386413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 386513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 386613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 386713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 386813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 386913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 387013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 387113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 387213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 387313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 387413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 387513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 387613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 387713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 387813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 387913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 388013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 388113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 388213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 388313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 388413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 388513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 388613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 388713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 388813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 388913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 389013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 389113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 389213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 389313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 389413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 389513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 389613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 389713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 389813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 389913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 390013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 390113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 390213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 390313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 390413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 390513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 390613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 390713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 390813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 390913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 391013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 391113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 391213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 391313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 391413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 39404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 39414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 39424df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 39434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 39444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 39454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 39464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams)child.getLayoutParams(); 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && lp.viewType != AdapterView.ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 40804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 414418d1255ebe83d73df34832f2197a1e51ea717b96Romain Guy removeDetachedView(scrap, false); 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4149a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4152a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4171a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 417421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap == AdapterView.ITEM_VIEW_TYPE_IGNORE) { 417921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy removeDetachedView(victim, false); 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4187a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 423952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 424052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 424152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 424252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 424352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 424452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 424552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 424652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 424752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 424852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 424952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 425052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 425152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 425252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 425352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 425452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 425552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 425652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 425752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 425852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 425952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 426052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 426152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 426252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 426352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 426452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 426552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 426652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 426752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 426852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 426952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 427052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 427152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4274