AbsListView.java revision 0a63716ed0e44f7cd32b81a444429318d42d8f08
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 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 44d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guyimport android.view.KeyCharacterMap; 451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 46b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 47b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ContextMenu.ContextMenuInfo; 51d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guyimport android.gesture.GestureOverlayView; 52d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guyimport android.gesture.Gesture; 53d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guyimport android.gesture.LetterRecognizer; 54d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guyimport android.gesture.Prediction; 550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guyimport android.gesture.LetterRecognizers; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport com.android.internal.R; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 63d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 64d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 65d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 76d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @attr ref android.R.styleable#AbsListView_gestures 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnTouchModeChangeListener { 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 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_NORMAL = 1; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 105d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Disables gestures. 106d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 107d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #setGestures(int) 108d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_JUMP 109d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_FILTER 110d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 111d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public static final int GESTURES_NONE = 0; 112d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 113d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * When a letter gesture is recognized the list jumps to a matching position. 114d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 115d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #setGestures(int) 116d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_NONE 117d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_FILTER 118d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 119d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public static final int GESTURES_JUMP = 1; 120d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 121d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * When a letter gesture is recognized the letter is added to the filter. 122d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 123d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #setGestures(int) 124d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_NONE 125d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_JUMP 126d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 127d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public static final int GESTURES_FILTER = 2; 128d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 129d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the user is currently dragging the fast scroll thumb 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FAST_SCROLL = 5; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 2029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 464d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 465d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Indicates the type of gestures to use: GESTURES_NONE, GESTURES_FILTER or GESTURES_NONE 466d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 467d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mGestures; 468d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 469d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Used to implement the gestures overlay 470d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private GestureOverlayView mGesturesOverlay; 471d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private PopupWindow mGesturesPopup; 472d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private ViewTreeObserver.OnGlobalLayoutListener mGesturesLayoutListener; 473d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedGestures; 474d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mInstallGesturesOverlay; 475d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mPreviousGesturing; 476d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 477d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 4831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 4846dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4856dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 4866dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 5800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 586d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy int defaultGestures = GESTURES_NONE; 588d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (useTextFilter) { 589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy defaultGestures = GESTURES_FILTER; 590d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } else if (enableFastScroll) { 591d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy defaultGestures = GESTURES_JUMP; 592d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 593d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy int gestures = a.getInt(R.styleable.AbsListView_gestures, defaultGestures); 594d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setGestures(gestures); 595d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 600d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 601d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 602d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 603d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 604d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 605d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 606d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mTouchSlop = ViewConfiguration.get(mContext).getScaledTouchSlop(); 607d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 608d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 610d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 611d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * <p>Sets the type of gestures to use with this list. When gestures are enabled, 612d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * that is if the <code>gestures</code> parameter is not {@link #GESTURES_NONE}, 613d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * the user can draw characters on top of this view. When a character is 614d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * recognized and matches a known character, the list will either:</p> 615d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * <ul> 616d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * <li>Jump to the appropriate position ({@link #GESTURES_JUMP})</li> 617d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * <li>Add the character to the current filter ({@link #GESTURES_FILTER})</li> 618d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * </ul> 619d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * <p>Using {@link #GESTURES_JUMP} requires {@link #isFastScrollEnabled()} to 620d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * be true. Using {@link #GESTURES_FILTER} requires {@link #isTextFilterEnabled()} 621d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * to be true.</p> 622d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 623d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @param gestures The type of gestures to enable for this list: 624d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #GESTURES_NONE}, {@link #GESTURES_JUMP} or {@link #GESTURES_FILTER} 625d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 626d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_NONE 627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_JUMP 628d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_FILTER 629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #getGestures() 630d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 631d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public void setGestures(int gestures) { 632d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy switch (gestures) { 633d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy case GESTURES_JUMP: 634d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (!mFastScrollEnabled) { 635d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy throw new IllegalStateException("Jump gestures can only be used with " 636d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy + "fast scroll enabled"); 637d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 638d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy break; 639d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy case GESTURES_FILTER: 640d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (!mTextFilterEnabled) { 641d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy throw new IllegalStateException("Filter gestures can only be used with " 642d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy + "text filtering enabled"); 643d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 644d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy break; 645d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 646d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 647d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final int oldGestures = mGestures; 648d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGestures = gestures; 649d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 650d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Install overlay later 651d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (oldGestures == GESTURES_NONE && gestures != GESTURES_NONE) { 652d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mInstallGesturesOverlay = true; 653d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Uninstall overlay 654d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } else if (oldGestures != GESTURES_NONE && gestures == GESTURES_NONE) { 655d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy uninstallGesturesOverlay(); 656d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 657d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 658d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 659d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 660d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Indicates what gestures are enabled on this view. 661d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 662d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @return {@link #GESTURES_NONE}, {@link #GESTURES_JUMP} or {@link #GESTURES_FILTER} 663d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * 664d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_NONE 665d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_JUMP 666d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * @see #GESTURES_FILTER 6670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setGestures(int) 668d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 669d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @ViewDebug.ExportedProperty(mapping = { 670d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @ViewDebug.IntToString(from = GESTURES_NONE, to = "NONE"), 671d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @ViewDebug.IntToString(from = GESTURES_JUMP, to = "JUMP"), 672d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @ViewDebug.IntToString(from = GESTURES_FILTER, to = "FILTER") 673d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy }) 674d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public int getGestures() { 675d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mGestures; 676d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 677d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 678d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissGesturesPopup() { 679d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGesturesPopup != null) { 680d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup.dismiss(); 681d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 683d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 684d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void showGesturesPopup() { 685d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Make sure we have a window before showing the popup 686d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (getWindowVisibility() == View.VISIBLE) { 687d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy installGesturesOverlay(); 688d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionGesturesPopup(); 689d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 690d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 691d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 692d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void positionGesturesPopup() { 693d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final int[] xy = new int[2]; 694d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy getLocationOnScreen(xy); 695d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (!mGesturesPopup.isShowing()) { 696d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup.showAtLocation(this, Gravity.LEFT | Gravity.TOP, xy[0], xy[1]); 697d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } else { 698d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup.update(xy[0], xy[1], -1, -1); 699d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 700d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 701d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 702d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void installGesturesOverlay() { 703d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mInstallGesturesOverlay = false; 704d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 705d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGesturesPopup == null) { 706d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final Context c = getContext(); 707d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final LayoutInflater layoutInflater = (LayoutInflater) 708d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 709d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesOverlay = (GestureOverlayView) 710d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy layoutInflater.inflate(R.layout.list_gestures_overlay, null); 711d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 712d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final PopupWindow p = new PopupWindow(c); 713d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setFocusable(false); 714d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setTouchable(false); 715d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 716d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setContentView(mGesturesOverlay); 717d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setWidth(getWidth()); 718d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setHeight(getHeight()); 719d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy p.setBackgroundDrawable(null); 720d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 721d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGesturesLayoutListener == null) { 722d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesLayoutListener = new ViewTreeObserver.OnGlobalLayoutListener() { 723d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public void onGlobalLayout() { 724d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (isShown()) { 725d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy showGesturesPopup(); 726d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } else if (mGesturesPopup.isShowing()) { 727d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy dismissGesturesPopup(); 728d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 729d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 730d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy }; 731d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 732d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy getViewTreeObserver().addOnGlobalLayoutListener(mGesturesLayoutListener); 733d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedGestures = true; 734d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 735d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup = p; 736d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 737d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesOverlay.removeAllOnGestureListeners(); 73882f3495b146b267f3786997752cef25310176349Romain Guy mGesturesOverlay.setGestureStrokeType(GestureOverlayView.GESTURE_STROKE_TYPE_MULTIPLE); 73982f3495b146b267f3786997752cef25310176349Romain Guy mGesturesOverlay.addOnGesturePerformedListener(new GesturesProcessor()); 740d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mPreviousGesturing = false; 742d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 743d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 744d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 745d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void uninstallGesturesOverlay() { 746d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy dismissGesturesPopup(); 747d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup = null; 748d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGesturesLayoutListener != null) { 749d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy getViewTreeObserver().removeGlobalOnLayoutListener(mGesturesLayoutListener); 750d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 751d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 752d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 753d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy @Override 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public boolean dispatchTouchEvent(MotionEvent ev) { 755d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGestures != GESTURES_NONE) { 75682f3495b146b267f3786997752cef25310176349Romain Guy if (ev.getAction() != MotionEvent.ACTION_DOWN || mFastScroller == null || 75782f3495b146b267f3786997752cef25310176349Romain Guy !mFastScroller.isPointInside(ev.getX(), ev.getY())) { 75882f3495b146b267f3786997752cef25310176349Romain Guy 759fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen if (mGesturesPopup.isShowing()) { 760fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen mGesturesOverlay.dispatchTouchEvent(ev); 761fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen 762fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen final boolean isGesturing = mGesturesOverlay.isGesturing(); 763fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen 764fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen if (!isGesturing) { 765fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen mPreviousGesturing = isGesturing; 766fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen return super.dispatchTouchEvent(ev); 767fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen } else if (!mPreviousGesturing){ 768fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen mPreviousGesturing = isGesturing; 769fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen final MotionEvent event = MotionEvent.obtain(ev); 770fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen event.setAction(MotionEvent.ACTION_CANCEL); 771fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen super.dispatchTouchEvent(event); 772fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen return true; 773fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen } 77482f3495b146b267f3786997752cef25310176349Romain Guy } 775d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 776d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 777d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 778d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return super.dispatchTouchEvent(ev); 779d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 780d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 7830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 7850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 7949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 8009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 8089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 8119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 8129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 8149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 8160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 8179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 8199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 8209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 8219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 8259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 8269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 8279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 8289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 8299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 8309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 8329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 8339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 8340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 8359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 8379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 8399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 8409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 8429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 8439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 8479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 8499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 8519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 8549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 8559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 8599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 8619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 8639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 8649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 8659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 8699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 8719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 8729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 8739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 8759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 8769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 8819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 8829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 8849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 8869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 8879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 8889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 8899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 8909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 8919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 8939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 8949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 8959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 8969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 8979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 8989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 8999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 9009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 9029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 9049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 9059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 9079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 9089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 9099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 9119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 9159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 9169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 9179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 9189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 9209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 9229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 9249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 9259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 9299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 9319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 9339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 9349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 9369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 9379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 9389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 9419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 9429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 9439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) { 9449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 9459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 9469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 9479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 9489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 9509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 9519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 9559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 9569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 9579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 9619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 9629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 9649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 9669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " filter=" + filter + "}"; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * popup, but there don't seem to be any other useful hooks 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1139d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1140d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 11460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return Math.max(firstPosition * 100 - (top * 100) / height, 0); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled ? Math.max(mItemCount * 100, 0) : mItemCount; 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1324d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1325d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1326d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1327d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1343d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1344d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1345d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1346d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1347d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1348d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1349d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1350d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1351d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1352d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGestures != GESTURES_NONE && visible && mGesturesPopup != null && 1353d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup.isShowing()) { 1354d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionGesturesPopup(); 1355d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1361d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1362d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1363d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View obtainView(int position) { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1566d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1570d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 1571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mInstallGesturesOverlay) { 1572d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy installGesturesOverlay(); 1573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionGesturesPopup(); 1574c51ef9702d7ccd3dac15ccaeb509d1150f0a2d7fRomain Guy } else if (mGesturesPopup != null && mGesturesPopup.isShowing()) { 1575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGesturesPopup.update(w, h); 1576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1675ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1676ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1677ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1678ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(ViewConfiguration 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project .getLongPressTimeout()); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1761d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1762d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1763d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGestures != GESTURES_NONE && mGesturesPopup != null && 1764d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy !mGlobalLayoutListenerAddedGestures) { 1765d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(mGesturesLayoutListener); 1766d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 1777d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 1778d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 1779d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 1780d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 1781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGesturesLayoutListener != null && mGesturesPopup != null) { 1782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedGestures = false; 1783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(mGesturesLayoutListener); 1784d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 1799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy dismissGesturesPopup(); 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGestures != GESTURES_NONE) { 1811d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy showGesturesPopup(); 1812d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 18550a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter != null && mItemCount > 0 && 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition < mAdapter.getCount() && sameWindow()) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(mChild, mClickMotionPosition, getAdapter().getItemId( 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mClickMotionPosition)); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 18910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean performLongPress(final View child, 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1933fea57edf0dd27bc21c34e7f96cd6383d6f2dff42Marco Nelissen dismissGesturesPopup(); 19340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0 && mAdapter != null && 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performItemClick(view, mSelectedPosition, mSelectedRowId); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (view != null) view.setPressed(false); 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (distance > mTouchSlop) { 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 214482f3495b146b267f3786997752cef25310176349Romain Guy 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int x = (int) ev.getX(); 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = (int) ev.getY(); 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = pointToPosition(x, y); 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && (getAdapter().isEnabled(motionPosition))) { 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). It might be a 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // click or a scroll. Assume it is a click until proven otherwise 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME Debounce 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForTap == null) { 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap = new CheckForTap(); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we couldn't find a view to click on, but the down event was touching 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the edge, we will bail out and try again. This allows the edge correcting 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // code in ViewRoot to try to find a nearby view to select 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on whitespace, or stopped a fling. It is a scroll. 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_SCROLL; 218120fb46fa1e16b57fe7aba2ac7cdf1efbf1a12393Romain Guy mMotionCorrection = 0; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionPosition = findMotionRow(y); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionPosition >= 0) { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 22206dfed24158b8fc9150abee23992db621cd82aa43Romain Guy trackMotionScroll(deltaY, incrementalDeltaY); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if the top of the motion view is where it is 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // supposed to be 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView.getTop() != mMotionViewNewTop) { 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We did not scroll the full amount. Treat this essentially like the 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // start of a new touch scroll 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = findMotionRow(y); 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = 0; 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView = getChildAt(motionPosition - mFirstPosition); 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = motionView.getTop(); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = y; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable)d).resetTransition(); 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final VelocityTracker velocityTracker = mVelocityTracker; 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project velocityTracker.computeCurrentVelocity(1000); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialVelocity = (int)velocityTracker.getYVelocity(); 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if ((Math.abs(initialVelocity) > 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewConfiguration.get(mContext).getScaledMinimumFlingVelocity()) && 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (getChildCount() > 0)) { 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingRunnable == null) { 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable = new FlingRunnable(); 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingRunnable.start(-initialVelocity); 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 23330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.draw(canvas); 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int x = (int) ev.getX(); 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int y = (int) ev.getY(); 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 23920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Scroller mScroller; 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public FlingRunnable() { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller = new Scroller(getContext()); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void start(int initialVelocity) { 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_FLING) { 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount == 0 || getChildCount() == 0) { 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endFling(); 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Scroller scroller = mScroller; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean more = scroller.computeScrollOffset(); 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int y = scroller.getCurrY(); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Flip sign to convert finger direction to list items direction 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (e.g. finger moving down means list is moving towards the top) 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int delta = mLastFlingY - y; 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend that each frame of a fling scroll is a touch scroll 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (delta > 0) { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the top. Use first view as mMotionPosition 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = mFirstPosition; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View firstView = getChildAt(0); 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = firstView.getTop(); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't fling more than 1 screen 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // List is moving towards the bottom. Use last view as mMotionPosition 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int offsetToLast = getChildCount() - 1; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = mFirstPosition + offsetToLast; 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View lastView = getChildAt(offsetToLast); 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = lastView.getTop(); 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't fling more than 1 screen 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25596dfed24158b8fc9150abee23992db621cd82aa43Romain Guy trackMotionScroll(delta, delta); 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if the top of the motion view is where it is 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // supposed to be 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView.getTop() != mMotionViewNewTop) { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project more = false; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (more) { 257224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy invalidate(); 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = y; 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project endFling(); 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFlingProfilingStarted) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = false; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 25966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 25976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 25986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 25996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 26006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 26016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 26026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 26036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 26046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 26056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 26066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 26076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 26086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 26096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 26106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26126dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26226dfed24158b8fc9150abee23992db621cd82aa43Romain Guy void trackMotionScroll(int deltaY, int incrementalDeltaY) { 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (spaceAbove >= absIncrementalDeltaY && spaceBelow >= absIncrementalDeltaY) { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetChildrenTopAndBottom(incrementalDeltaY); 26566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0 && firstTop >= listPadding.top && deltaY > 0) { 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't need to move views down if the top of the first position is already visible 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY < 0) { 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't need to move views up if the bottom of the last position is already visible 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean down = incrementalDeltaY < 0; 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int headerViewsCount = getHeaderViewsCount(); 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int footerViewsStart = mItemCount - getFooterViewsCount(); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int start = 0; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = 0; 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (down) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = listPadding.top - incrementalDeltaY; 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getBottom() >= top) { 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = firstPosition + i; 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= headerViewsCount && position < footerViewsStart) { 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(child); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstPosition + i, -1); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getTop() <= bottom) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project start = i; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project count++; 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = firstPosition + i; 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= headerViewsCount && position < footerViewsStart) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(child); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstPosition + i, -1); 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBlockLayoutRequests = true; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetChildrenTopAndBottom(incrementalDeltaY); 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (down) { 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition += count; 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27346dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project fillGap(down); 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mBlockLayoutRequests = false; 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the first (or only) item in the row closest to y 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 29649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 30009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 30029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 30039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 30069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 30079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 30389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 30399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 30409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3046d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 30584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3059b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3065b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 306924443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3072b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 30759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 31139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3141b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 31579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && mPopup != null && mPopup.isShowing() && 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project event.getAction() == KeyEvent.ACTION_DOWN) { 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = true; 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 31619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 31669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = mFiltered = true; 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3170b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3175105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3197b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 3198b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3199b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3200b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 3201c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 3202c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 3203c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 3204c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 3205c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 32061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 32071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 32081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 32091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 32101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 32121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 32131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 32141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 32151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 32171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 32191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 32201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 32211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 32221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 32231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 32241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 32251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 32261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 32271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 32291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 32311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 32331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 32341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 32351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 32361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 32371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 32381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 32391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 32411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 32421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 32431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 32441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 32451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 3246c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 3247c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 3248b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 32490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3250b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 3251b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 3252b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 3253b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 3254b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 3255b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 3256b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 3257b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 32580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3259b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 32669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 32684df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 32694df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 3272b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 3273b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 3274b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 3275b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 3276b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 3277105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 3288d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 32929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 32949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 32999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 33019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 33029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 33039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 33049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 33059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 33129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 33159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered && mPopup != null && !mPopup.isShowing()) { 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup.isShowing()) { 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 33341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 33411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 33421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 3345c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 33489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 33541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 33721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 34309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCacheColorHint = color; 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 346213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 347713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 347813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 347913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 348013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 348113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 348213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 348313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 348413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 348513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 348613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 348713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 348813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 348913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 349013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 349113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 349213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 349313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 349413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 349513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 349613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 349713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 349813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 349913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 350013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 350113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 350213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 350313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 350413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 350513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 350613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 350713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 350813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 350913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 351013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 351113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 351213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 351313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 351413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 351513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 351613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 351713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 351813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 351913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 352013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 352113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 352213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 352413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 352513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy android.util.Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 352613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 352713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 352913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 353013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 353113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 353213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 353313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 35594df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 35604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 35614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 35624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 35634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 35644df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 35654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams)child.getLayoutParams(); 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && lp.viewType != AdapterView.ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 36994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; ++i) { 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = ((AbsListView.LayoutParams) 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project victim.getLayoutParams()).viewType; 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap == AdapterView.ITEM_VIEW_TYPE_IGNORE) { 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 385682f3495b146b267f3786997752cef25310176349Romain Guy private class GesturesProcessor implements GestureOverlayView.OnGesturePerformedListener { 3857d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3858d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private static final double SCORE_THRESHOLD = 0.1; 3859d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3860d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private LetterRecognizer mRecognizer; 3861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private ArrayList<Prediction> mPredictions; 3862d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private final KeyCharacterMap mKeyMap; 3863d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private final char[] mHolder; 3864d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3865d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy GesturesProcessor() { 38660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mRecognizer = LetterRecognizers.fromType(getContext(), 38670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy LetterRecognizers.RECOGNIZER_LATIN_LOWERCASE); 38688ae3f6190244156bc6e750680654057bd7816309Marco Nelissen if (mRecognizer == null) { 3869b0ded43d3844d9d97c5d554e8ca4ec3ee2c7bbe1Romain Guy setGestures(GESTURES_NONE); 38708ae3f6190244156bc6e750680654057bd7816309Marco Nelissen } 3871d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mGestures == GESTURES_FILTER) { 3872d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mKeyMap = KeyCharacterMap.load(KeyCharacterMap.BUILT_IN_KEYBOARD); 3873d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mHolder = new char[1]; 3874d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } else { 3875d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mKeyMap = null; 3876d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mHolder = null; 3877d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3878d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3879d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3880d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy public void onGesturePerformed(GestureOverlayView overlay, Gesture gesture) { 3881d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mPredictions = mRecognizer.recognize(gesture, mPredictions); 3882d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (!mPredictions.isEmpty()) { 3883d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final Prediction prediction = mPredictions.get(0); 3884d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (prediction.score > SCORE_THRESHOLD) { 3885d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy switch (mGestures) { 3886d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy case GESTURES_JUMP: 3887d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy processJump(prediction); 3888d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy break; 3889d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy case GESTURES_FILTER: 3890d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy processFilter(prediction); 3891d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy break; 3892d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3893d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3894d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3895d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3896d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3897d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void processJump(Prediction prediction) { 3898d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final Object[] sections = mFastScroller.getSections(); 3899d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (sections != null) { 3900d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final String name = prediction.name; 3901d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final int count = sections.length; 3902d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3903d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy int index = -1; 3904d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy for (int i = 0; i < count; i++) { 3905d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (name.equalsIgnoreCase((String) sections[i])) { 3906d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy index = i; 3907d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy break; 3908d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3909d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3910d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3911d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (index != -1) { 3912d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final SectionIndexer indexer = mFastScroller.getSectionIndexer(); 3913d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final int position = indexer.getPositionForSection(index); 3914d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setSelection(position); 3915d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3916d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3917d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3918d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 3919d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void processFilter(Prediction prediction) { 3920d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mHolder[0] = prediction.name.charAt(0); 3921d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final KeyEvent[] events = mKeyMap.getEvents(mHolder); 3922d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (events != null) { 3923d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy for (KeyEvent event : events) { 3924d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy sendToTextFilter(event.getKeyCode(), event.getRepeatCount(), 3925d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy event); 3926d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3927d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3928d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 3929d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 3931