AbsListView.java revision 0046bd8ea6f56b632fd7b9c4c33e22f57232bcbc
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 589e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 590e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 591e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 592e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 593e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 594e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 595e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 596e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 597e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 598e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 599e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 600e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 601e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 602e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 603e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 604e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 65530346c4399af45b46996f504004796177b975349Romain Guy 65630346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 65730346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 65830346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 65930346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 66030346c4399af45b46996f504004796177b975349Romain Guy public void run() { 66130346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 66230346c4399af45b46996f504004796177b975349Romain Guy } 66330346c4399af45b46996f504004796177b975349Romain Guy }); 66430346c4399af45b46996f504004796177b975349Romain Guy } 665d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 671d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 672d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 673df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 674d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 675d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 676d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 677d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 678d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6794296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6804296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6814296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6824296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 683d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 684d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 686d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 688f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 696f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 705f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 707f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 711f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 712f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 721f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 726f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 729f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 735f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 748f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 753f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 771f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 775f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 779f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 887bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 911bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 934bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 935bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 9960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 9970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 9990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 10300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 10480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 11576bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1213a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 12142614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1236a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 12372614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1256a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 12572614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1258f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1259f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1271f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1272f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1291f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1336a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1337a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1338f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1339f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 13402614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1341f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1364079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1374f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1375f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1376f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1377f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1378f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1379f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1380f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1381f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13822614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 13832614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1384a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1385a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1386a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1387a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1388a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1393d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1394d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 14000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1464079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1465079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 15090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 15100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 15300b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 15310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 15320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 15330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 15340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 15350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 15360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1587d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1588d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1589d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1590d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1595f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1596f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1597f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1598f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1599f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1600f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1601f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1602f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1614d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1615d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1616d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1617d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1618d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1619d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1620d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1621d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1628d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 173221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 173321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 173421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 173721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 173821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1758079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 176621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1767a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1768a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1784079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1785079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1786079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1787079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1788079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1791e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1792e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1793e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1800079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1801079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1802079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 1881079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 1925079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1943df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1944df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1945df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1946df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 1950079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1954ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1955ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1956ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1957ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1964df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1965df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 1986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 1987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 1988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 1989079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 1990079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 1991079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1992079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1993079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1994079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 1998079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2041e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2042e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2043e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2044e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2045e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2046e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2053d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2054d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2055d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 205782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 205882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 205982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 206082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 20616a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 20626a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 20636a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 20646a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 20656a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 206682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20731f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 20741f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 20751f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 207621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 207721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 207821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2082d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2083d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2084d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2085d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 208782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 208882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 208982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 209082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 209182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2102670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2103670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2104670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2105670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2106670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2111670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 212097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 21660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21700a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2185005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2186005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2187005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2188005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2189005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2190005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22418350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2247f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2255f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2299df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2300df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2301df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2302df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2303df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2308dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2309dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2310dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2311df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2312dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2314dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 231645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 231745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 231845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 231945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2323dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2390079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 24289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 24309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2471dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2472dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2473dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2474dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2475dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2476dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 248382f3495b146b267f3786997752cef25310176349Romain Guy 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 24969d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 24979d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 24989d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 24999d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 25009d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 25019d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 25029d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 25039d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 25049d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 25059d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 25069d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 25079d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 25089d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 25099d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 25109d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 25119d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 25129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 25139d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 25149d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 25159d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 25169d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 25209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 25219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 25229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 25239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 25249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 25259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 25269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 252779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 252879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 25309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 25319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 25329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 25339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 25369d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 25379d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 25389d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 25434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 25444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2563110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2564110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2565110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2566110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2567110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2568110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2569110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2570110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2573a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 25746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 25766198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 25786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2581b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2582b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2583b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2584b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2585b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2586b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2587b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2588b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2589b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 259079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2591b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2592b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2593b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 259479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 259579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 259679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 259779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2633005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2634005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 2638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26436198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 2648079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2656005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2657005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 2658079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2661005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2662005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2666079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 26696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 26706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 26716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 26726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 26736198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 26746198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 26756198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 26766198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26776198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 26786198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 26796198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 268021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 268121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 26826198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 26836198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 26846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 26856198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 26866198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 268879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2690f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2691f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2692f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 269979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 27060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 27299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 27309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 27319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 27329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 27339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 27349d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 27359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27379d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 27389d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 27399d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 27409d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27429d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 27439d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 27449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 27524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 27534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 27544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 27554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 27564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 27574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 27584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 27594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 27604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 27614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 27634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27749d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 279279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 279379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 27944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 27954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 27964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 27974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 279979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 281179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 28124b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 28134b4f40f84e72579417604143e5f42115769649b8Romain Guy } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 28384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 28394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 28404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 28474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 28484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 28494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 28504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 28514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 28524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 28534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 28544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 28554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 28564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 28574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 28584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 28594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 28604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 28749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 28899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 28970046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 29209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 292379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 295079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 295421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 295521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 295621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 296079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 296179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 296379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 296479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 296579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 296679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 296779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 296879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29709d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Scroller scroller = mScroller; 297179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 297279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 297479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 297579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 297679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 297879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 297979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 298079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 298179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 298279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 298379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 298579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 298679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 298779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 298879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 298979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 299079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 299379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 299679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 299779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // Don't stop just because delta is zero (it could have been rounded) 3000299acb581205b6574bfa91824b1b887e265c4c40Marc Blank final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3002a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 300379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 300479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 300579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 300679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 300779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 300879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 300979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 301079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 301179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 301279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 301379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 301679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 301879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 301979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3031e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 303852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3039e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3040e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30504bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 3052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 30834bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3084fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3100fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3132e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3133e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3134322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3135322171b333a1c796fcc1428a96ea1d854a3881faErik } 3136322171b333a1c796fcc1428a96ea1d854a3881faErik 3137322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3138e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3139e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3140e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3141e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3142e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3143e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3144e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3145371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3146371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3147e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 31484bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3149e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3150e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3151e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3152e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3153e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3154e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3155e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3156322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3157e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3158e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3159e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3160371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 31614ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3162322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3163322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3164371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3165234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3166e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3167e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3168e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3172e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3174371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3175371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3176371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3177371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 31850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 31860b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 31870b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31880b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3200029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3202029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 32067e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3214029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3215029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3216029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3217029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 32327e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3234458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 32550b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 32560b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 32570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3259029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3261029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 32657e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 32897e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3302e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3303234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3304234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3305234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3306234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3307234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3308e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3309371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3310234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3311234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3312e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3313371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3314e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3315e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3316371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3317e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3318e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3319371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3320e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3321e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3322e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3323e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3324234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3325234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3326234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3327e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3328e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3329e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3330e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3331458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 33384bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 33394bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 33404bede9e425875542976a422222510fa4056a8339Romain Guy * 33414bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 33424bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 33434bede9e425875542976a422222510fa4056a8339Romain Guy */ 33444bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 33454bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 33464bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 33474bede9e425875542976a422222510fa4056a8339Romain Guy } 33484bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable.mScroller.setFriction(friction); 33494bede9e425875542976a422222510fa4056a8339Romain Guy } 335021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 335121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 335221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 335321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 335421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * 335521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 335621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 335721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 335821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 335921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 33604bede9e425875542976a422222510fa4056a8339Romain Guy 33614bede9e425875542976a422222510fa4056a8339Romain Guy /** 3362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3372322171b333a1c796fcc1428a96ea1d854a3881faErik 3373322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3374322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3375322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3376322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3377322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3378322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3379322171b333a1c796fcc1428a96ea1d854a3881faErik * 3380322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3381322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3382322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3383322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3384322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3385322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3386322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3387322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3388322171b333a1c796fcc1428a96ea1d854a3881faErik } 3389322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3390322171b333a1c796fcc1428a96ea1d854a3881faErik } 3391322171b333a1c796fcc1428a96ea1d854a3881faErik 3392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3393e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3394e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3395e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3396e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3398e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3399e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3400e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3401e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3402e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3403e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 3404e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 3405e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 3406e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3407e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 3408e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3409e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3410e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 3411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3435299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 3436299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 34370046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3438299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 34390046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 34400046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 3441299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 3442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3444499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3445499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 3446499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3447499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 3448499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 3449499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 3450499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 3451499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 3452499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 3453499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3454499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3455499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 3456499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 3457499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 3458499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 3459499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 3460499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 3461499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 3462499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 3463499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 3464499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 3465499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 3466499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 3467499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 3468499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 3469499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3470499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 3471499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 3472499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 3473499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3474499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3475499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3476499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3477499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3478499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3479499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 34896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 34906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 34916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 34926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 34936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 34946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 34956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 34966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 34976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 34986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 34996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 35006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3545458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354791f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 3548458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 355391f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 3554458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3561029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3562029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3563029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3564029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3566458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3567458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3570458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3572458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3573458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3578458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3580458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3581458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3583458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3584458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3585458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3586458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3587458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3597458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3598458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3599458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3600458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3602458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3603079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3604458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3605458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3607458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3614458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3615458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3627029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3634458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3635029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 36362a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 36372a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 3638079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 3639079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 3640079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 3641079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 3642079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 3643079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 36442a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 3646079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 3647029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3648029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3689ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3690ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3691ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 3698079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 37214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 3829371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38600785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38640785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 38650785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 38660785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 38670785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 38680785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 38690785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 38700785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 38710785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 38720785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 38730785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 38740785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 38750785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 38760785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 39439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 3969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 397343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 397443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 397543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 397643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 397743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 397843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 397943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 398043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 398143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 398243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 398343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 398443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 398543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 398643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 398743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 398824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 398943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 399043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3994d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 40064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4007b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4013b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 401724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4020b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 40459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 40499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 40509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 40519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 40539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 40559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 40579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 40589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 40599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 40619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 40629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 40649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 40659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 40669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 40829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4089b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 40969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 410583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 41068d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 41078d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 41088d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 410983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 411083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 411183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 411283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 411383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 411483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4120cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4124b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4129105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4151b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4152b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4153b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4154b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4155c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4156c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4157c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4158c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4159c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 41601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 41611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 41621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 41631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 41641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 41661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 41671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 41681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 41691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 41711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 41731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 41741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 41751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 41761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 41771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 41781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 41791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 41801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 41811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 41831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 41851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 41871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 41881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 41891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 41901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 41911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 41921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 41931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 41951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 41961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 41971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 41981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 41991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4200c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4201c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4202b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 42030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4204b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4205b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4206b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4207b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4208b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4209b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4210b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4211b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 42120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4213b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 42224df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 42234df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4226b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4227b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4228b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4229b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4230b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4231105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4242d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 427424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 427943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 42881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 42951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 42961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4299c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 43029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 43081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 43261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 43845be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 43855be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 43865be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 43875be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 43885be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 439352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 439452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 439552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 439652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 439752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 439852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 439952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 440052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 442713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 444213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 444313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 444413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 444513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 444613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 444713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 444813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 444913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 445013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 445113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 445213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 445313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 445413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 445513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 445613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 445752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 445813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 445913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 446013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 446113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 446213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 446313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 446413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 446513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 446613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 446713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 446813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 446913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 447013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 447113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 447213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 447313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 447413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 447513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 447613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 447713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 447813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 447913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 448013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 448113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 448213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 448313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 448413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 448552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 448613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 448713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 448813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 448913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 449052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 449113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 449213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 449313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 449413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 449513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 449613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 449713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 449813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 4499499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 4500499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 4501499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 4502499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4503499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 45049b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 45059b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 45063ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 45073ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 45083ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 45093ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 45103ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 45113ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 45123ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 45139b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 45149b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 45159b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 4516499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 4517499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4518499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4519499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4520499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 4521499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4522499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 4523499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 4524499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 4525499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4526499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4527499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4528499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4529499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 4530499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 4532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 4533499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 4534499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 4535499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4536499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4537499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4538499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4554f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 4555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 4556f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 4557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 4558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 4560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 4561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 4562f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 4563f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 4564f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 4565f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 4566f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 4567f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 4568f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4569f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4570f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 4571f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4572f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4573f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 4574f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 4575f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 4577f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 4578f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4580f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 4581f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 4582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 4583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 4584f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 4585f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4586f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 4587f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4588f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4589f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 4590f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 4591f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4592f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4593f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 4594f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 4595f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4596f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4597f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 4598f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 4599f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 4600f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4601f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 4602f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 4603f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4604f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 4605f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 4606f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 4607f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4608f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 4609f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4610f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4611f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4612f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 4613f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 4614f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4615f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 4616f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 4617f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 4618f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4619f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4620f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4621f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4622f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4630bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 46319bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 46329bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 46339bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46364df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 46374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 46384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 46394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 46404df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 46414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4642bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 46434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 46444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 46450bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 46460bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 46470bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 46480bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 46490bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 46500bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 46510bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 46520bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4653bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 46540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 46550bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 4656079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 4657079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 4658079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 4659079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 4660079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 4661079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 4662079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4748f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4749f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4750f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4751f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4752f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4753f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4754f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4755f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4756f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4757f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4758f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4759f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4760f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4761f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4762f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4763f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4764f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4765f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4766f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 47670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 48109c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 48129c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 48154df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4843079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 4847079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4858079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 48689b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48699b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 48709b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4874079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 4875079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4877a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4880a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4899a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 4902079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 4903079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 4904079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49089b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 49109b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 49119b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 49129b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4919a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 4920079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 497252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 497352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 497452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 497552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 497652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 497752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 497852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 497952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 498052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 498152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 498252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 498352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 498452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 498552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 498652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 498752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 498852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 498952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 499052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 4991266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 499252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 499352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 499452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 499552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 499652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 499752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 499852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 499952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 500052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 500152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 500252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 500352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 500452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5006079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5007079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5013079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5014079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5015079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5016079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5017079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5018079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5019079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5020079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5021079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5022079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5023079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5025