AbsListView.java revision d348bb4feff72d047a1037537be2d334a00c380c
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; 321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 40079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 46f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 47f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 55299acb581205b6574bfa91824b1b887e265c4c40Marc Blankimport android.view.ContextMenu.ContextMenuInfo; 561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 57b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 58b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 66d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 67d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 68d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 79f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 83499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 84499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 13479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1390a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 247499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 248499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 259079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 260079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 261079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 262079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 263079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 264079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 265079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 266079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 267079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 268079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 269079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 379458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4470b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 4480b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4671cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4681cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4691cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4701cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4711cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 519d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 521d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5266dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5276dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5284296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5294296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 53021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 53121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 53221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 53324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 53424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 53524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 53624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 599e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 600e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 601e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 602e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 603e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 604e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 605e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 606e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 607e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 608e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 609e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 610e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 611e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 612e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 613e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 614e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 6269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 66530346c4399af45b46996f504004796177b975349Romain Guy 66630346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 66730346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 66830346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 66930346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 67030346c4399af45b46996f504004796177b975349Romain Guy public void run() { 67130346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 67230346c4399af45b46996f504004796177b975349Romain Guy } 67330346c4399af45b46996f504004796177b975349Romain Guy }); 67430346c4399af45b46996f504004796177b975349Romain Guy } 675d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 681d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 683df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 684d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 685d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 686d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 687d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 688d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6894296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6904296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6914296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6924296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 693d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 694d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 696d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 705f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 707f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 711f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 712f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 721f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 726f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 729f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 735f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 748f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 753f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 771f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 775f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 779f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 897bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 921bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 943bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 944bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 945bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 10060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 10070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 10090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 10159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 10199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 10400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 10580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 11676bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1223a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 12242614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1246a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 12472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1249f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1254f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1266a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 12672614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1269f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1281f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1282f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1301f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1346a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1347a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1348f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1349f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 13502614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1351f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1374079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1385f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1386f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1387f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1388f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1389f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1390f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1391f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13922614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 13932614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1394a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1395a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1396a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1397a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1398a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1403d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1404d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 14100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14450a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1474079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1475079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 15190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 15200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 15400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 15410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 15420b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 15430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 15440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 15450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 15460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1597d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1598d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1599d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1600d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1605f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1606f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1607f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1608f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1609f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1610f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1611f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1612f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1624d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1625d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1626d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1627d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1628d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1629d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1630d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1631d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1637d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1638d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1639d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 174221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 174321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 174421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 174721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 174821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1768079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 177621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1777a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1778a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1794079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1795079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1796079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1797079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1798079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1801e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1802e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1803e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 1810079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 1811079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 1812079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1858d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 1891079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 1935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1953df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1954df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1955df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1956df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 1960079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1964ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1965ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1966ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1967ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1974df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1975df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1995079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 1996079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 1997079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 1998079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 1999079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2000079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2002079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2003079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2004079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20410a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2051e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2052e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2053e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2054e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2055e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2056e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 2063d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 2064d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 2065d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 206782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 206882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 206982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 207082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 20716a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 20726a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 20736a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 20746a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 20756a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 207682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20831f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 20841f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 20851f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 208621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 208721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 208821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2092d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2093d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2094d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2095d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 209782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 209882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 209982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 210082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 210182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 21021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 21031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 21041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 21051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 21061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 21071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 21081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 21091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 21101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 21111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2122670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2123670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2124670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2125670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2126670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2131670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 214097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 21860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2205005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2206005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2207005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2208005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2209005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2210005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22618350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2263f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2264f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2265f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2266f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2267f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2268f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2269f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2270f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2271f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2272f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2273f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2275f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2319df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2320df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2321df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2322df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2323df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2328dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2329dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2330dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2331df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2332dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2334dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 233645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 233745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 233845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 233945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2343dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2410079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2411079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 24489d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 24509d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2491dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2492dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2493dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2494dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2495dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2496dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 250382f3495b146b267f3786997752cef25310176349Romain Guy 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 25169d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 25179d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 25189d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 25199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 25209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 25219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 25229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 25239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 25249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 25259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 25269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 25279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 25289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 25299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 25309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 25319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 25329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 25339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 25349d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 25359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 25369d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25399d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 25409d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 25419d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 25429d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 25439d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 25449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 25459d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 2546d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.flywheelTouch(); 25479d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 254879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 254979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 25509d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 25519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 25529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 25539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 25549d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 25579d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 25589d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 25599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 25644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 25654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25831cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 25841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 25851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 25861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 25871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2589110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2590110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2591110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2592110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2593110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2594110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2595110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2596110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2599a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 26006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 26026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 26046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2607b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2608b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2609b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2610b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2611b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2612b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2613b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2614b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2615b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 261679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2617b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2618b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2619b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 262079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 262179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 262279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 262379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2659005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2660005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 2664079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 2674079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2682005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2683005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 2684079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2687005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2688005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2692079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 26956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 26966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 26976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 26986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 26996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 27006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 27016198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 27026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27036198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 27046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 27056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 270621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 270721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 27086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 27096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 27106198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 27116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 27126198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 27136198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 271479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 27156198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2716f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2717f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2718f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 2719d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 2720d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 2721d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 27226198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 272879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 27350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 27551cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 27561cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 27571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 27581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 27639d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 27649d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 2765d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne View motionView = getChildAt(mMotionPosition - mFirstPosition); 27669d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 27679d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 27689d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 27699d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27719d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 27729d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 27739d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 27749d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27769d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 27779d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 27789d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 27864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 27874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 27884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 27894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 27904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 27914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 27924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 27934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 27944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 27954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 27974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 28089d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 28160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 28244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 282679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 282779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 28284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 28294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 28304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 28314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 283379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 28379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 284579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 28464b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 28474b4f40f84e72579417604143e5f42115769649b8Romain Guy } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 28664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 28724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 28734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 28744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 28804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 28814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 28824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 28834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 28844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 28854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 28864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 28874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 28884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 28894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 28904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 28914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 28924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 28934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 28944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 29310046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2953d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 2954d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 2955d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 2956d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 2957d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final Scroller scroller = mScroller; 2958d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 2959d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 2960d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 2961d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 2962d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 2963d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 2964d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 2965d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 2966d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 2967d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 2968d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 2969d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 2970d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 2971d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 2972d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 2973d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 2974d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 2975d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 2976d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 297779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 29789d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 298179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 29909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 29961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 29971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 29981cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3009d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 301279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3013d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 301721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 301821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 301921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3020d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 3021d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3022d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3023d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3024d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 302879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 302979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3030d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 303279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 3033d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3034d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3035d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3036d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3037d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3038d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_FLING: 303979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 304079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 304179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 304279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 3043d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne break; 3044d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3045d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final Scroller scroller = mScroller; 3046d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne boolean more = scroller.computeScrollOffset(); 3047d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int y = scroller.getCurrY(); 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Flip sign to convert finger direction to list items direction 3050d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // (e.g. finger moving down means list is moving towards the top) 3051d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne int delta = mLastFlingY - y; 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3053d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Pretend that each frame of a fling scroll is a touch scroll 3054d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (delta > 0) { 3055d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // List is moving towards the top. Use first view as mMotionPosition 3056d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mMotionPosition = mFirstPosition; 3057d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final View firstView = getChildAt(0); 3058d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mMotionViewOriginalTop = firstView.getTop(); 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3060d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Don't fling more than 1 screen 3061d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3062d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3063d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // List is moving towards the bottom. Use last view as mMotionPosition 3064d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne int offsetToLast = getChildCount() - 1; 3065d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mMotionPosition = mFirstPosition + offsetToLast; 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3067d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final View lastView = getChildAt(offsetToLast); 3068d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mMotionViewOriginalTop = lastView.getTop(); 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3070d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Don't fling more than 1 screen 3071d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3072d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3073d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3074d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Don't stop just because delta is zero (it could have been rounded) 3075d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3076d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3077d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (more && !atEnd) { 3078d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne invalidate(); 3079d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mLastFlingY = y; 3080d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne post(this); 3081d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3082d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3083d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3084d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (PROFILE_FLINGING) { 3085d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingProfilingStarted) { 3086d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne Debug.stopMethodTracing(); 3087d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingProfilingStarted = false; 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 30901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 30911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 30921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 30931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3107e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 311452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3115e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3116e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 31264bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 3128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 31594bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3160fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3176fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3208e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3209e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3210322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3211322171b333a1c796fcc1428a96ea1d854a3881faErik } 3212322171b333a1c796fcc1428a96ea1d854a3881faErik 3213322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 3214e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3215e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3217e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3218e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3219e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3220e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3221371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3222371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3223e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 32244bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3225e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3226e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3227e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3228e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3229e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3230e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3231e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3232322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3234e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3235e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3236371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 32374ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3238322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3239322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3240371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3241234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3242e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3243e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3244e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3248e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3250371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3251371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3252371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3253371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 32610b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 32620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 32630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 32640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3276029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3278029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 32827e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3290029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3291029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3292029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3293029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 33087e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3312458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 33310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 33320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 33330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3335029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3337029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 33417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3343458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3345458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3355458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3356458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3358458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 33657e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3374458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3375458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3378e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3379234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 3380234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 3381234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 3382234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 3383234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 3384e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3385371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3386234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3387234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 3388e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3389371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3390e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3391e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3392371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3393e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3394e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3395371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3396e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3398e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3399e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3400234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 3401234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 3402234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 3403e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3404e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3405e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3406e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 34144bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 34154bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 34164bede9e425875542976a422222510fa4056a8339Romain Guy * 34174bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 34184bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 34194bede9e425875542976a422222510fa4056a8339Romain Guy */ 34204bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 34214bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 34224bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 34234bede9e425875542976a422222510fa4056a8339Romain Guy } 34244bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable.mScroller.setFriction(friction); 34254bede9e425875542976a422222510fa4056a8339Romain Guy } 342621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 342721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 342821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 342921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 343021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * 343121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 343221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 343321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 343421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 343521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 34364bede9e425875542976a422222510fa4056a8339Romain Guy 34374bede9e425875542976a422222510fa4056a8339Romain Guy /** 3438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3448322171b333a1c796fcc1428a96ea1d854a3881faErik 3449322171b333a1c796fcc1428a96ea1d854a3881faErik /** 3450322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 3451322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 3452322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3453322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 3454322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 3455322171b333a1c796fcc1428a96ea1d854a3881faErik * 3456322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 3457322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 3458322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 3459322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 3460322171b333a1c796fcc1428a96ea1d854a3881faErik */ 3461322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 3462322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 3463322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 3464322171b333a1c796fcc1428a96ea1d854a3881faErik } 3465322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 3466322171b333a1c796fcc1428a96ea1d854a3881faErik } 3467322171b333a1c796fcc1428a96ea1d854a3881faErik 3468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3469e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3470e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3471e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3472e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3473e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3474e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3475e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3476e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3477e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3478e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3479e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 3480e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 3481e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 3482e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3483e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 3484e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3485e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3486e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 3487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3511299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 3512299acb581205b6574bfa91824b1b887e265c4c40Marc Blank if (distance != 0) { 35130046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3514299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 35150046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell } else { 35160046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mFlingRunnable.endFling(); 3517299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 3518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3520499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3521499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 3522499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3523499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 3524499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 3525499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 3526499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 3527499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 3528499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 3529499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3530499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 3532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 3533499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 3534499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 3535499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 3536499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 3537499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 3538499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 3539499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 3540499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 3541499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 3542499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 3543499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 3544499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 3545499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3546499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 3547499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 3548499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 3549499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3550499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3551499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3552499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3553499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3554499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3555499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 35656dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 35666dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 35676dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 35686dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 35696dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 35706dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 35716dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 35726dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 35736dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 35756dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 35766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35776dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 35796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35816dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3595458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 362391f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 362991f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 3630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3631458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3632458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3633458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3635458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3637029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3638029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3639029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3640029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3643458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3645458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3646458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3649458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3658079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3667458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3668458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3669458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3679079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 3680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3698458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3702458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3703029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3704458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3711029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 37122a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 37132a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 3714079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 3715079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 3716079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 3717079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 3718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 3719079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 37202a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 3722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 3723029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3724029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3728458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3730458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3765ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3766ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3767ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 3774079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 37974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 38279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 38349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 38359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 38369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 38429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 38439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 38449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 38489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 3905371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39360785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39400785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 39410785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 39420785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 39430785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 39440785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 39450785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 39460785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 39470785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 39480785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 39490785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 39500785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 39510785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 39520785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 39599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 39609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 39619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 39629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 39639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 39679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 39689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 39749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 39789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 40059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 40079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 40089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 40119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 40129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 40159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 40169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 40189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 40199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 40229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 40239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 40249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 40259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 40299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 40319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 40399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 40409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 40419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 40429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 40439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 40449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4045079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 40469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 40479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 404943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 405043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 405143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 405243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 405343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 405443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 405543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 405643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 405743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 405843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 405943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 406043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 406143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 406243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 406343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 406424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 406543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 406643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 40679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4070d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 40779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 40809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 40819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 40824df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4083b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 40849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 40859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4089b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 409324443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4096b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 41289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 41339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 41419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 41489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 41499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 41629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4165b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 41799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 418183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 41828d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 41838d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 41848d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 418583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 418683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 418783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 418883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 418983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 419083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4196cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4200b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4205105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4227b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4228b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4229b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4230b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4231c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4232c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4233c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4234c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4235c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 42361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 42371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 42381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 42391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 42401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 42411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 42421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 42431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 42441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 42451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 42471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 42481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 42491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 42501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 42511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 42521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 42531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 42541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 42551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 42561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 42571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 42591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 42611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 42631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 42641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 42651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 42661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 42671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 42681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 42691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 42711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 42721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 42731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 42741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 42751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4276c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4277c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4278b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 42790a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4280b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4281b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4282b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4283b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4284b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4285b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4286b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4287b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 42880a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4289b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 42979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 42984df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 42994df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 43019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4302b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4303b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4304b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4305b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4306b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4307105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4318d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 435024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 435543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 43641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 43679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 43711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 43721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4375c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 43769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 43841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 44021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 44039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 44059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 44169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 44319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 44349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 44605be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 44615be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 44625be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 44635be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 44645be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 446952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 447052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 447152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 447252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 447352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 447452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 447552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 447652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 450313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 451813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 451913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 452013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 452113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 452213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 452313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 452413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 452513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 452613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 452713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 452813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 452913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 453013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 453113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 453213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 453352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 453413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 453513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 453613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 453713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 453813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 453913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 454013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 454113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 454213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 454313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 454413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 454513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 454613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 454713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 454813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 454913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 455013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 455113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 455213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 455313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 455413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 455513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 455613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 455713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 455813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 455913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 456013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 456152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 456213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 456313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 456413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 456513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 456652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 456713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 456813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 456913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 457013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 457113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 457213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 457313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 457413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 4575499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 4576499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 4577499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 4578499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4579499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 45809b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 45819b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 45823ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 45833ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 45843ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 45853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 45863ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 45873ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 45883ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 45899b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 45909b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 45919b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 4592499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 4593499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4594499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4595499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4596499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 4597499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4598499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 4599499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 4600499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 4601499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4602499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4603499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4604499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4605499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 4606499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4607499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 4608499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 4609499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 4610499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 4611499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4612499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4613499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4614499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 4631f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 4632f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 4633f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 4634f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4635f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 4636f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 4637f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 4638f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 4639f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 4640f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 4641f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 4642f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 4643f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 4644f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4645f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4646f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 4647f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4648f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 4650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 4651f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4652f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 4653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 4654f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4655f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 4657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 4658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 4659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 4660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 4661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 4663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 4666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 4667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 4670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 4671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 4674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 4675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 4676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 4678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 4679f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4680f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 4681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 4682f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 4683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4684f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 4685f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4688f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 4689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 4690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 4692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 4693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 4694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4696f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4706bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 47079bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 47089bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 47099bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47124df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 47134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 47144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 47154df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 47164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 47174df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4718bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 47194df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 47204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 47210bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 47220bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 47230bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 47240bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 47250bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 47260bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 47270bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 47280bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4729bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 47300bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 47310bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 4732079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 4733079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 4734079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 4735079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 4736079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 4737079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 4738079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4824f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4825f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4826f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4827f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4828f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4829f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4830f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4831f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4832f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4833f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4834f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4835f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4836f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4837f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4838f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4839f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4840f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4841f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4842f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 48430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 48869c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 48889c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 48914df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4919079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 4923079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4934079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 49449b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 49459b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 49469b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4950079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 4951079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4953a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4956a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4975a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 4978079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 4979079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 4980079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49849b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 49869b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 49879b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 49889b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4995a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 4996079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 504852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 504952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 505052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 505152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 505252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 505352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 505452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 505552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 505652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 505752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 505852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 505952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 506052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 506152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 506252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 506352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 506452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 506552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 506652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5067266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 506852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 506952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 507052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 507152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 507252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 507352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 507452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 507552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 507652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 507752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 507852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 507952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 508052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5083079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5084079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5085079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5086079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5087079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5088079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5089079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5090079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5091079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5092079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5093079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5094079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5095079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5096079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5097079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5098079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5099079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5101