AbsListView.java revision 079e23575024e103358c982152afb7a720ae1a8a
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 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 37f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 39079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 45f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 46f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 54299acb581205b6574bfa91824b1b887e265c4c40Marc Blankimport android.view.ContextMenu.ContextMenuInfo; 551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 56b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 57b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 65d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 66d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 67d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 78f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 82499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 83499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 13379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 243499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 247499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 258079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 259079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 261079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 262079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 263079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 264079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 265079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 266079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 267079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 268079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 4470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 509d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 511d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5166dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5176dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5184296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5194296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 52021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 52121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 52221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 52324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 52424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 52524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 52624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 63930346c4399af45b46996f504004796177b975349Romain Guy 64030346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 64130346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 64230346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 64330346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 64430346c4399af45b46996f504004796177b975349Romain Guy public void run() { 64530346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 64630346c4399af45b46996f504004796177b975349Romain Guy } 64730346c4399af45b46996f504004796177b975349Romain Guy }); 64830346c4399af45b46996f504004796177b975349Romain Guy } 649d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 651f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 655d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 656d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 657df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 658d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 659d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 660d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 661d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 662d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6634296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6664296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 667d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 668d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 670d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 679f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 680f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 682f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 684f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 685f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 688f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 696f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 705f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 707f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 711f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 712f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 721f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 726f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 729f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 735f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 748f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 753f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 771f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 775f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 779f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 871bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 895bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 918bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 919bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 9800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 9810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 9830a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 9849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 9979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10110a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 10140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 10320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 11416bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1269f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1314f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1315f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 1316f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1339079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1350f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1351f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1352f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1353f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1354f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1355f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1356f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1361d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1362d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 13680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1432079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1433079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14770b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 14780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 14980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 14990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 15000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 15010b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 15020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 15030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 15040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1555d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1556d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1557d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1558d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1563f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1564f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1565f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1566f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1567f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1568f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1569f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1570f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1582d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1583d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1584d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1585d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1586d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1588d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1595d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1596d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1597d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 170021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 170121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 170221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 170521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 170621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1726079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 173421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1735a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1736a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1752079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1753079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1754079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1755079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1765079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1766079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1767079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 1846079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 1890079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1908df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1909df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1910df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1911df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 1915079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1920ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1921ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1922ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1929df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1930df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1950079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 1951079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 1952079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 1953079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 1954079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 1955079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 1956079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1957079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1958079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1959079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 1963079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2012d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2013d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2014d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 201682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 201782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 201882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 201982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 20206a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 20216a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 20226a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 20236a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 20246a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 202582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20321f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 20331f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 20341f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 203521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 203621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 203721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2041d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2042d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2043d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2044d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 204682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 204782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 204882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 204982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 205082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2061670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2062670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2063670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2064670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2065670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2070670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 207997566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 21250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2144005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2145005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2146005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2147005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2148005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2149005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 21630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22008350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2258df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2259df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2260df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2261df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2262df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2267dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2268dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2269dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2270df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2271dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2273dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 227545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 227645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 227745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 227845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2282dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2349079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2350079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 23879d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 23899d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2430dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2431dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2432dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2433dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2434dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2435dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 244282f3495b146b267f3786997752cef25310176349Romain Guy 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 24559d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 24569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 24579d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 24589d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 24599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 24609d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 24619d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 24629d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 24639d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 24649d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 24659d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 24669d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 24679d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 24689d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 24699d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 24709d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 24719d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 24729d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 24739d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 24749d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 24759d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24789d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 24799d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 24809d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 24819d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 24829d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 24839d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 24849d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24859d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 248679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 248779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24889d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 24899d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 24909d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 24919d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 24929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 24959d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 24969d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 24979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 25024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 25034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2522110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2523110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2524110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2525110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2526110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2527110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2528110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2529110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2532a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 25336198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 25356198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 25376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2540b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2541b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2542b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2543b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2544b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2545b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2546b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2547b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2548b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 254979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2550b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2551b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2552b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 255379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 255479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 255579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 255679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2592005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2593005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 2597079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 2607079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2615005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2616005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 2617079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2620005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2621005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2625079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 26286198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 26296198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 26306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 26316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 26326198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 26336198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 26346198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 26356198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26366198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 26376198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 26386198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 263921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 264021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 26416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 26426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 26436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 26446198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 26456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 264779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2649f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2650f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2651f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 265879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 26650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 26889d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 26899d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 26909d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 26919d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 26929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 26939d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 26949d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26969d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 26979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 26989d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 26999d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27019d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 27029d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 27039d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 27114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 27124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 27134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 27144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 27154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 27164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 27174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 27184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 27194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 27204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 27224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 275179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 275279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 27534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 27544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 27554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 27564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 275879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 277079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 27714b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 27724b4f40f84e72579417604143e5f42115769649b8Romain Guy } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 27794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 27804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 27974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 27984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 28064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 28074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 28084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 28094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 28104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 28114cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 28124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 28134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 28144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 28154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 28164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 28174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 28184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 28194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28719d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 287879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 28799d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 288279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 290979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 291321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 291421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 291521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 291979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 292079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 292279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 292379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 292479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 292579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 292679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 292779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Scroller scroller = mScroller; 293079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 293179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 293379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 293479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 293579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 293779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 293879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 293979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 294079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 294179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 294279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 294479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 294579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 294679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 294779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 294879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 294979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 295179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 295279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 295479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 295579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 295679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2958299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // Don't stop just because delta is zero (it could have been rounded) 2959299acb581205b6574bfa91824b1b887e265c4c40Marc Blank final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2961a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 296279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 296379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 296479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 296579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 296679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 296779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 296879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 296979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 297079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 297179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 297279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 297579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 297779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 297879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2990e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 299752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2998e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2999e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30094bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30424bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3043fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3059fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3091e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3092e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3093322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3094322171b333a1c796fcc1428a96ea1d854a3881faErik } 3095322171b333a1c796fcc1428a96ea1d854a3881faErik 3096322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3097e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3098e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3099e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3100e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3101e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3102e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3103e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3104371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3105371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3106e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 31074bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3108e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3109e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3110e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3111e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3112e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3113e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3114e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3115322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3116e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3117e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3118e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3119371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 31204ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3121322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3122322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3123371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3124234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3125e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3126e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3127e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3131e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3133371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3134371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3135371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3136371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 31440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 31450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 31460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3159029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3161029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 31657e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3173029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3174029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3175029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3176029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 31917e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 32140b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 32150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 32160b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3218029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3220029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 32247e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 32487e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3261e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3262234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3263234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3264234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3265234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3266234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3267e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3268371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3269234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3270234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3271e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3272371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3273e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3274e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3275371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3276e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3277e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3278371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3279e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3280e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3281e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3282e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3283234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3284234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3285234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3286e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3287e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3288e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3289e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 32974bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 32984bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 32994bede9e425875542976a422222510fa4056a8339Romain Guy * 33004bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 33014bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 33024bede9e425875542976a422222510fa4056a8339Romain Guy */ 33034bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 33044bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 33054bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 33064bede9e425875542976a422222510fa4056a8339Romain Guy } 33074bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable.mScroller.setFriction(friction); 33084bede9e425875542976a422222510fa4056a8339Romain Guy } 330921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 331021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 331121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 331221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 331321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * 331421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 331521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 331621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 331721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 331821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 33194bede9e425875542976a422222510fa4056a8339Romain Guy 33204bede9e425875542976a422222510fa4056a8339Romain Guy /** 3321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3331322171b333a1c796fcc1428a96ea1d854a3881faErik 3332322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3333322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3334322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3335322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3336322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3337322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3338322171b333a1c796fcc1428a96ea1d854a3881faErik * 3339322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3340322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3341322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3342322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3343322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3344322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3345322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3346322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3347322171b333a1c796fcc1428a96ea1d854a3881faErik } 3348322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3349322171b333a1c796fcc1428a96ea1d854a3881faErik } 3350322171b333a1c796fcc1428a96ea1d854a3881faErik 3351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3352e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3353e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3354e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3355e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3356e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3357e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3358e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3359e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3360e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3361e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3362e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 3363e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 3364e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 3365e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3366e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 3367e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3368e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3369e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 3370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3381458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3396299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 3397299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 3398299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 3399299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 3400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3402499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3403499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 3404499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3405499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 3406499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 3407499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 3408499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 3409499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 3410499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 3411499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3412499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3413499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 3414499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 3415499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 3416499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 3417499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 3418499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 3419499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 3420499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 3421499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 3422499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 3423499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 3424499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 3425499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 3426499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 3427499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3428499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 3429499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 3430499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 3431499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3433499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3434499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3435499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3436499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3437499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 34476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 34486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 34496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 34506dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 34516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 34526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 34536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 34546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 34556dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 34566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 34576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 34586dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 34596dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 34606dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 34616dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34636dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 34649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 350591f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 3506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 351191f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 3512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3520029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3521029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3522029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3534458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3536458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3540079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3552458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3558458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3560458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3561079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3562458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3563458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3564458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3565458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3571458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 35789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3582458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3585029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3588458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3589458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3593029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 35942a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 35952a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 3596079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 3597079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 3598079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 3599079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 3600079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 3601079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 36022a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 3604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 3605029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3606029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3609458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3610458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3611458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3612458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3647ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3648ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3649ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 3656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 3787371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 3916079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 392043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 392143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 392243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 392343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 392443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 392543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 392643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 392743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 392843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 392943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 393043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 393143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 393243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 393343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 393443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 393524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 393643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 393743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3941d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 39534df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3954b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3960b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 396424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3967b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4036b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 405283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 40538d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 40548d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 40558d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 405683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 405783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 405883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 405983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 406083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 406183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4067cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4071b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4076105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4098b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4099b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4100b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4101b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4102c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4103c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4104c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4105c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4106c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 41071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 41081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 41091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 41101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 41111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 41131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 41141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 41151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 41161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 41181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 41201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 41211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 41221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 41231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 41241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 41251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 41261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 41271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 41281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 41301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 41321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 41341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 41361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 41371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 41381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 41391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 41401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 41421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 41441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 41451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 41461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4147c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4148c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4149b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 41500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4151b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4152b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4153b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4154b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4155b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4156b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4157b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4158b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 41590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4160b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 41694df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 41704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4173b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4174b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4175b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4176b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4177b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4178105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4189d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 42059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 422124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 422643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 42351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 42421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 42431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4246c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 42551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 42731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 43315be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 43325be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 43335be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 43345be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 43355be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 434052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 434152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 434252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 434352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 434452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 434552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 434652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 434752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 437413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 438913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 439013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 439113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 439213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 439313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 439413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 439513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 439613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 439713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 439813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 439913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 440013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 440113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 440213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 440313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 440452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 440513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 440613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 440713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 440813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 440913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 441013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 441113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 441213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 441313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 441413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 441513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 441613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 441713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 441813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 441913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 442013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 442113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 442213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 442313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 442413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 442513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 442613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 442713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 442813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 442913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 443013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 443113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 443252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 443313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 443413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 443513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 443613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 443752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 443813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 443913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 444013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 444113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 444213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 444313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 444413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 444513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 4446499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 4447499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 4448499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 4449499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4450499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 44519b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 44529b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 44533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 44543ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 44553ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 44563ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 44573ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 44583ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 44593ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 44609b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 44619b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 44629b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 4463499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 4464499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4465499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4466499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4467499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 4468499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4469499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 4470499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 4471499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 4472499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4473499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4474499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4475499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4476499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 4477499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4478499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 4479499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 4480499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 4481499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 4482499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4483499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4484499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4485499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4501f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 4502f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 4503f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 4504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 4505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 4507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 4508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 4509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 4510f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 4511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 4512f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 4513f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 4514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 4515f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4516f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4517f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 4518f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4519f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4520f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 4521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 4522f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4523f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 4524f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 4525f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4526f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4527f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 4528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 4529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 4530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 4531f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 4532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 4534f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4535f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4536f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 4537f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 4538f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 4541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 4542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 4545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 4546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 4547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4548f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 4549f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 4550f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4551f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 4552f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 4553f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 4554f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 4556f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 4560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 4561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4562f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 4563f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 4564f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 4565f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4566f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4567f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4568f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4569f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4577bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 45789bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 45799bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 45809bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45834df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 45844df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 45854df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 45864df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 45874df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 45884df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4589bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 45904df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 45914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 45920bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 45930bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 45940bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 45950bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 45960bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 45970bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 45980bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 45990bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4600bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 46010bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 46020bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 4603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 4604079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 4605079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 4606079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 4607079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 4608079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 4609079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4695f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4696f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4697f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4698f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4699f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4700f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4701f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4702f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4703f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4704f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4705f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4706f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4707f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4708f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4709f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4710f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4711f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4712f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4713f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 47140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 47579c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 47599c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 47624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4790079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 4794079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4805079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 48159b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48169b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 48179b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4821079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 4822079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4824a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4827a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4846a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 4849079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 4850079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 4851079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48559b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 48579b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48589b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 48599b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4866a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 4867079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 491952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 492052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 492152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 492252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 492352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 492452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 492552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 492652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 492752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 492852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 492952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 493052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 493152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 493252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 493352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 493452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 493552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 493652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 493752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 4938266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 493952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 494052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 494152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 494252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 494352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 494452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 494552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 494652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 494752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 494852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 494952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 495052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 495152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4953079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 4954079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 4955079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 4956079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 4957079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 4958079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 4959079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 4960079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 4961079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 4962079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 4963079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 4964079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4965079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4966079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 4967079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4968079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 4969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4970079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4972