AbsListView.java revision 4ef1da3c04aed2fc7af7796a731f5cf00712ae02
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powellimport com.android.internal.R; 2079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 37f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ContextMenu.ContextMenuInfo; 419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 45f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 46f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 55b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 56b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 64d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 65d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 66d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 77f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 81499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 82499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 13279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 183f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 184f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 185f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 186f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 187f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 188f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 189f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 190f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 191f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 243499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 244499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 245499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 3860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 4350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 4590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 497d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5064296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5074296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 50821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 50921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 51024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy 51124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 51224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 51324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5174cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 5214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5266dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 5719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 5779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 5789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 5819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 5829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 5839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 5849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 5879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 5889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 5919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 5929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 5939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 5959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 5969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 5989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 5999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 6049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 6069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 6079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 6099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 6109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 6129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 6139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 6159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 6169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 6179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 6199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 6200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 6219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 6229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 6239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 6259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 62630346c4399af45b46996f504004796177b975349Romain Guy 62730346c4399af45b46996f504004796177b975349Romain Guy final int adapterId = a.getResourceId(R.styleable.AbsListView_adapter, 0); 62830346c4399af45b46996f504004796177b975349Romain Guy if (adapterId != 0) { 62930346c4399af45b46996f504004796177b975349Romain Guy final Context c = context; 63030346c4399af45b46996f504004796177b975349Romain Guy post(new Runnable() { 63130346c4399af45b46996f504004796177b975349Romain Guy public void run() { 63230346c4399af45b46996f504004796177b975349Romain Guy setAdapter(Adapters.loadAdapter(c, adapterId)); 63330346c4399af45b46996f504004796177b975349Romain Guy } 63430346c4399af45b46996f504004796177b975349Romain Guy }); 63530346c4399af45b46996f504004796177b975349Romain Guy } 636d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 637f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 638f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 642d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 643d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 644df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 645d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 646d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 647d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 648d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 649d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 6504296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 6514296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 6524296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 6534296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 654d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 655d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 6560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 657d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 679f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 680f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 682f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 684f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 685f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 688f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 689f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 690f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 691f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 692f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 693f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 694f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 695f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 696f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 697f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 698f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 700f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 701f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 702f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 703f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 704f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 705f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 706f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 707f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 708f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 709f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 710f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 711f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 712f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 713f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 714f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 715f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 716f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 717f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 718f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 719f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 720f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 721f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 722f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 723f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 724f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 725f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 726f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 727f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 728f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 729f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 730f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 731f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 732f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 733f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 734f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 735f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 736f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 737f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 746f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 748f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 749f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 751f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 752f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 753f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 754f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 755f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 756f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 757f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 758f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 759f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 761f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 762f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 764f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 765f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 766f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 767f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 768f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 770f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 771f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 773f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 774f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 775f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 776f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 777f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 778f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 779f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 780f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 781f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 782f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 783f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 784f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled |= super.performItemClick(view, position, id); 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 9630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 9640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 9659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 9660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 9679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 9689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 9699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 9709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 9729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 9739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 9749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 9759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 9769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 9789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 9799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 9809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 9819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 9879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 9889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 9899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 9919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 9929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 9939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 9940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 9959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 9969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 9970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 9989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 9999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 10009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 10019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 10029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 10069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 10079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 10089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 10099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 10109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 10119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 10139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 10149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 10150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 10169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 10189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 10209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 10219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 10239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 10249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 10289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 10309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 10329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 10359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 10369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 10409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 10429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 10449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 10459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 10469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 10509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 10529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 10539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 10569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 10579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 10629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 10639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 10659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 10679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 10689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 10709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 10719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 10729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 10769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 10779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 10799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 10809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 10819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 10839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 10849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 10859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 10869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 10879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 10889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 10899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 10909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 10929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 10939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 10949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 10959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 10969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 10979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 10989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 10999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 11019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 11059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 11069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 11109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 11246bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 11549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 11559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 11569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 11579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 11599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 11609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 11619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 11629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 11669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 11679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 11689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 11699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 11709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1252f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean haveChildren = getChildCount() > 0; 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (haveChildren) { 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first child 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = mFirstPosition; 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = mAdapter.getItemId(mFirstPosition); 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1297f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1298f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 1299f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1331f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1332f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1333f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1334f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1335f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1336f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1337f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1338f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1343d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1344d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 13500a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13850a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 14570b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 14580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 14780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 14790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 14800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 14810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 14820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 14830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 14840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1535d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1536d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1537d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1538d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1543f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1544f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1545f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1546f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1547f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1548f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1549f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1550f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1562d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1563d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1564d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1565d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1566d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1567d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1568d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1575d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1576d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1577d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 168021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 168121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 168221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 168521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 168621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.addScrapView(scrapView); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 171421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1715a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1716a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void positionSelector(View sel) { 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project refreshDrawableState(); 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 1787d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (shouldShowSelector() && mSelectorRect != null && !mSelectorRect.isEmpty()) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setState(getDrawableState()); 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 1882df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 1883df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 1884df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 1885df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project && selectorRect != null && !selectorRect.isEmpty()) { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1893ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 1894ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 1895ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 1896ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 1903df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 1904df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setState(getDrawableState()); 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.addOnTouchModeChangeListener(this); 1978d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 1979d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.addOnGlobalLayoutListener(this); 1980d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 198282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 198382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 198482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 198582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 198682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19931f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 19941f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 19951f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 199621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 199721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 199821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (treeObserver != null) { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project treeObserver.removeOnTouchModeChangeListener(this); 2002d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mTextFilterEnabled && mPopup != null) { 2003d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy treeObserver.removeGlobalOnLayoutListener(this); 2004d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = false; 2005d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 200782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 200882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 200982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 201082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 201182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2022670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2023670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2024670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2025670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2026670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 2027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 2029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2031670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 204097566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 20860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mChild; 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2105005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2106005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2107005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2108005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2109005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 2110005c0a445e32dfbf18bf93d209da857604925a58Adam Powell performItemClick(mChild, motionPosition, adapter.getItemId(motionPosition)); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 21240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 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 21628350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2220df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2221df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2222df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2223df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2224df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2229dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2230dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2231dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2232df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2233dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2235dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 223745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 223845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 223945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 224045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2244dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 23499d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (distance > mTouchSlop) { 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 23519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 23549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 23619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 23629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2392dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2393dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2394dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2395dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2396dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2397dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 24020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 240482f3495b146b267f3786997752cef25310176349Romain Guy 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 24179d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mActivePointerId = ev.getPointerId(0); 24189d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int x = (int) ev.getX(); 24199d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final int y = (int) ev.getY(); 24209d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell int motionPosition = pointToPosition(x, y); 24219d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (!mDataChanged) { 24229d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 24239d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell && (getAdapter().isEnabled(motionPosition))) { 24249d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // User clicked on an actual view (and was not stopping a fling). It might be a 24259d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // click or a scroll. Assume it is a click until proven otherwise 24269d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_DOWN; 24279d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // FIXME Debounce 24289d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mPendingCheckForTap == null) { 24299d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mPendingCheckForTap = new CheckForTap(); 24309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 24319d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 24329d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } else { 24339d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 24349d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // If we couldn't find a view to click on, but the down event was touching 24359d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // the edge, we will bail out and try again. This allows the edge correcting 24369d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // code in ViewRoot to try to find a nearby view to select 24379d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell return false; 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24409d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 24419d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Stopped a fling. It is a scroll. 24429d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell createScrollingCache(); 24439d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 24449d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionCorrection = 0; 24459d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionPosition = findMotionRow(y); 24469d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 24479d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 244879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 244979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 24509d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 24519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionPosition >= 0) { 24529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell // Remember where the motion event started 24539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 24549d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionViewOriginalTop = v.getTop(); 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionX = x; 24579d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionY = y; 24589d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mMotionPosition = motionPosition; 24599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mLastY = Integer.MIN_VALUE; 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 24644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 24654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2484110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2485110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2486110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2487110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2488110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2489110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2490110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2491110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 249479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 24956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 24976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 24996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2502b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (atEdge && getChildCount() > 0) { 2503b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // Treat this like we're starting a new scroll from the current 2504b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // position. This will let the user start scrolling back into 2505b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // content immediately rather than needing to scroll back to the 2506b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell // point where they hit the limit first. 2507b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell int motionPosition = findMotionRow(y); 2508b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell if (motionPosition >= 0) { 2509b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell final View motionView = getChildAt(motionPosition - mFirstPosition); 2510b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionViewOriginalTop = motionView.getTop(); 251179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2512b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2513b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionPosition = motionPosition; 2514b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 251579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 251679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 251779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 251879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mChild = child; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 2554005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2555005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(child); 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 25646198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(new Runnable() { 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(performClick); 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }, ViewConfiguration.getPressedStateDuration()); 2577005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 2578005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 2581005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 2582005c0a445e32dfbf18bf93d209da857604925a58Adam Powell post(performClick); 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 25886198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 25896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 25906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFirstPosition == 0 && getChildAt(0).getTop() >= mListPadding.top && 25916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 25926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getChildAt(childCount - 1).getBottom() <= 25936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy getHeight() - mListPadding.bottom) { 25946198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 25956198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 25966198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 25976198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 25986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 25994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 26006198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy 26016198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (Math.abs(initialVelocity) > mMinimumVelocity) { 26026198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 26036198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 26046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 260679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 26076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 2608f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 2609f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 2610f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 261779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 26240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 26479d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mTouchMode = TOUCH_MODE_REST; 26489d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell setPressed(false); 26499d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 26509d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (motionView != null) { 26519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell motionView.setPressed(false); 26529d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 26539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell clearScrollingCache(); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26559d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Handler handler = getHandler(); 26569d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (handler != null) { 26579d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 26589d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26609d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell if (mVelocityTracker != null) { 26619d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker.recycle(); 26629d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mVelocityTracker = null; 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 26664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 26694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 26704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 26714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 26724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 26734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 26744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 26754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 26764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 26774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 26784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 26794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 26804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 26814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 26929d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mFastScroller.draw(canvas); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 271079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 271179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 27124cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 27134cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 27144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 27154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 271779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 272979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 27304b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 27314b4f40f84e72579417604143e5f42115769649b8Romain Guy } 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 27384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 27394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 27564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 27574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 27584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 27644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 27654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 27664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 27674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 27684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 27694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 27704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 27714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 27724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 27734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 27744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 27754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 27764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (mVelocityTracker != null) { 27774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mVelocityTracker.clear(); 27784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScrollStateChanged(this, newState); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28309d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell private final Scroller mScroller; 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 283779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 28389d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell mScroller = new Scroller(getContext()); 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 284179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 2858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 2859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 2860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 2861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 2862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void endFling() { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 2867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 2870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 287179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 2872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller != null) { 2874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(mPositionScroller); 2875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 287979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 288079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 288279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 288379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell case TOUCH_MODE_FLING: { 288479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 288579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 288679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 288779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28899d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell final Scroller scroller = mScroller; 289079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell boolean more = scroller.computeScrollOffset(); 289179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final int y = scroller.getCurrY(); 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Flip sign to convert finger direction to list items direction 289479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // (e.g. finger moving down means list is moving towards the top) 289579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int delta = mLastFlingY - y; 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 289779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 289879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (delta > 0) { 289979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 290079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition; 290179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View firstView = getChildAt(0); 290279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 290479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 290579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 290679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 290779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 290879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int offsetToLast = getChildCount() - 1; 290979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell final View lastView = getChildAt(offsetToLast); 291279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 291479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell // Don't fling more than 1 screen 291579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 291679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2918a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell final boolean atEnd = trackMotionScroll(delta, delta); 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2920a0d645cb6980113a624e6e70a7fa9ae5e91bbac8Adam Powell if (more && !atEnd) { 292179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell invalidate(); 292279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastFlingY = y; 292379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell post(this); 292479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } else { 292579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 292679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 292779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (PROFILE_FLINGING) { 292879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mFlingProfilingStarted) { 292979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell Debug.stopMethodTracing(); 293079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mFlingProfilingStarted = false; 293179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 293479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 293679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 293779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 2944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 2946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 2947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 2948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 2949e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 2950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 2952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 2953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 2954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 2955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 295652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 2957e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 2958e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 2959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 2961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 2962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 2965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 2967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 2969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position <= firstPos) { 2970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 2971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 2972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 2973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 2974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 2975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 2977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 2982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 2984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 2986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 2987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 2988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 2990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 2993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 2994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 2995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 2996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 2998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 2999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 3000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int viewTravelCount = 0; 3002fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3018fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 3047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3050e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3051e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3052e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3053e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3054e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3055e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3056e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3057e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3058e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3059371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3060371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3061e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3062e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell int viewTravelCount = 0; 3063e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3064e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3065e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3066e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3067e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3068e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3069e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3070e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(targetTop - offset, SCROLL_DURATION); 3071e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3072e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3073e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3074371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 30754ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3076371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mScrollDuration = (int) (SCROLL_DURATION / screenTravelCount); 3077371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3078e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3079e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3080e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3084e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3086371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3087371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3088371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3089371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 30970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell 30980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 30990b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31000b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3112029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3114029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 31187e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3126029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 3127029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3128029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3129029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3131458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3133458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3135458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3137458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3141458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 31447e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3146458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextViewTop > extraScroll) { 3153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 31670b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 31680b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 31690b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3171029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3173029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 3174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 3176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 31777e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 3178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 3184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 3185458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 3186458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3188458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 3189458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3190458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3191458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3192458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3193458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3194458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3195458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3196458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 32017e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 3202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 3203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 3206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 3207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 3208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 3209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3214e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 3215371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3217371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 3218e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 3219371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3220e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3221e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3222371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(-getHeight(), mScrollDuration); 3223e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3224e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3225371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell smoothScrollBy(getHeight(), mScrollDuration); 3226e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3227e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3228e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3229e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3230e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell smoothScrollBy(targetTop - mOffsetFromTop, mScrollDuration); 3231e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3232e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 3233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3234e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3235458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 3236458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3237458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3241458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 3244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 3247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 3251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3254e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 3255e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 3256e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 3257e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 3258e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 3259e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 3260e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 3261e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 3262e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 3263e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 3264e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 3265e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 3266e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 3267e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3268e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 3269e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3270e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3271e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 3272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 3273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 3274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 3275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * view. 3276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 3277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 3278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 3279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 3281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 3282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 3283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 3285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 3288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 3289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 3290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 3291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 3292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 3293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 3294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 3295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3296458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.endFling(); 3297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable.startScroll(distance, duration); 3299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 33009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3301499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 3302499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 3303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 3304499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 3305499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 3306499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 3307499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 3308499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 3309499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 3310499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3311499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 3312499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 3313499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 3314499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 3315499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 3316499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 3317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 3318499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 3319499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 3320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 3321499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 3322499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 3323499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 3324499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 3325499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 3326499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 3327499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 3328499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 3329499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 3330499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3331499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3332499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 3333499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3334499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3335499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 3336499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 33389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 33399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 33409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 33419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCachingStarted = true; 33429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 33466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 33476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 33486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 33496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 33506dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mCachingStarted = false; 33516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 33526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 33536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 33546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 33556dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 33566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 33576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 33586dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 33596dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 33606dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33626dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 3371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3373458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 33759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 3376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceAbove = listPadding.top - firstTop; 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int end = getHeight() - listPadding.bottom; 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 34009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 340491f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition == 0 && firstTop >= listPadding.top && deltaY >= 0) { 3405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views down if the top of the first position 3406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 341091f234fe4d070121d65095e98c9b2e958cf22548Adam Powell if (firstPosition + childCount == mItemCount && lastBottom <= end && deltaY <= 0) { 3411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Don't need to move views up if the bottom of the last position 3412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // is already visible 3413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 3414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3418029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 3419029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 3420029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 3421029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 3424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 3427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int top = listPadding.top - incrementalDeltaY; 3431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 3432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 3434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3443458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = getHeight() - listPadding.bottom - incrementalDeltaY; 3451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 3452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 3453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 3454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 3457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 3458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 3459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 3460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mRecycler.addScrapView(child); 3461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 3463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 3464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 3465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 3478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 3482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 3483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3484029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 3488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 3489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3492029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 34932a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 34942a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 34952a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell positionSelector(getChildAt(childIndex)); 34962a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 3497029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 3498029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 3499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 3500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 3502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 3503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 3539ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 3540ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 3541ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 35714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 35744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 35754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 35764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 35774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * 35784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @param y Where the user touched 35794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row closest to y 35804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 35814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell int findClosestMotionRow(int y) { 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int childCount = getChildCount(); 35834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (childCount == 0) { 35844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return INVALID_POSITION; 35854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell 35874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionRow = findMotionRow(y); 35884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 35894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 36259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 36489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 36569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 36579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 36589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 36689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 36709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 36719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 36739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 36749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 3695371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell removeCallbacks(mPositionScroller); 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL || 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (mTranscriptMode == TRANSCRIPT_MODE_NORMAL && 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition + getChildCount() >= mOldItemCount)) { 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 37379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 37399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 37409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 37469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 37489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 37509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 37519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 37579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 37679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 37749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 38029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 38209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 38219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 38259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 382743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 382843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 382943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 383043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 383143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 383243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 383343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 383443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 383543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 383643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 383743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 383843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 383943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 384043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 384143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 384224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 384343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 384443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 38459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 38479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 38499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 38604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 3861b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3867b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 387124443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 3874b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 38849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 38999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 39069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 39079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 39099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 39109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 39119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 39129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 39139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 39159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 39169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 39179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 39189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 39199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 39219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 39229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT}."); 39239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 39259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 39269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 39279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 39309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 39319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 39329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 39369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 39399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 3943b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 39519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 39529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 39539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 39549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 39569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 39579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 395983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 39608d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 39618d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 39628d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn getKeyDispatcherState().startTracking(event, this); 396383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 396483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 396583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 396683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 396783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 396883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 39699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 39719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 39739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 3974cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 39759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3978b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 39799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 39809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 39829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 3983105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 39879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 39889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 39899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 39909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 39939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 39949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 39979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 39989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 39999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 40029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4005b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4006b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4007b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4008b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4009c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4010c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4011c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4012c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4013c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 40141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 40151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 40161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 40171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 40181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 40191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 40201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 40211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 40221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 40231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 40251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 40261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 40271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 40281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 40291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 40301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 40311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 40321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 40331bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 40341bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 40351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 40371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 40391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 40411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 40421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 40431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 40441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 40451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // no ViewRoot to dispatch events with. 40461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 40471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 40491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 40501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 40511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 40521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 40531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 4054c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 4055c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 4056b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 40570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4058b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 4059b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 4060b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 4061b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4062b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4063b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 4064b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 4065b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 40660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4067b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 40689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 40699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 40719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 40729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 40739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 40749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 40759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 40764df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 40774df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 40789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 40799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 4080b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 4081b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 4082b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 4083b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 4084b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 4085105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 40869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 40879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 40889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 40899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 40909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 40919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 40929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 40939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 40949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 40959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 4096d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 40979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 40999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 41009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 41029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 41079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 41099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 41109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 41119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 41129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 41139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 41149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 41209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 41229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 41239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 41269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 41279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 412824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 41299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 41309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 413343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 41349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 41359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 41421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 41439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 41459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 41491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 41501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 41519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 4153c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 41559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 41569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 41579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 41589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 41599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 41609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 41619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 41621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 41639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 41649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 41669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 41679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 41689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 41699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 41709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 41719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 41729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 41739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 41791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 41801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 41819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 41829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 41839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 41869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 41879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 41889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 41899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 41949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 41959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 41979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 41989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 41999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 42009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 42049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 42059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 42099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 42109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 42129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 42149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 42159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 42169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 42189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 42199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 42239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 42259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 42269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 42289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 42299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 42329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 42339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 42349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 42389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 42399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 42419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 424352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 424452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 424552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 424652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 424752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 424852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 424952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 425052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 42559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 42569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 42589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 42609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 42619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 42659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 42669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 427713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 42799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 429213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 429313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 429413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 429513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 429613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 429713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 429813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 429913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 430013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 430113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 430213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 430313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 430413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 430513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 430613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 430752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 430813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 430913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 431013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 431113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 431213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 431313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 431413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 431513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 431613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 431713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 431813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 431913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 432013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 432113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 432213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 432313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 432413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 432513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 432613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 432713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 432813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 432913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 433013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 433113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 433213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 433313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 433413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 433552964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 433613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 433713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 433813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 433913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 434052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 434113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 434213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 434313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 434413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 434513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 434613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 434713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 434813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 4349499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 4350499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 4351499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 4352499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4353499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 4354499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 4355499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4356499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4357499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4358499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 4359499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterConnected() { 4361499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 4362499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 4363499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4364499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4366499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 4368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 4370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter == mAdapter) { 4371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = null; 4372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(null); 4373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4374499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4375499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4376499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 43779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 43789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4392f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 4393f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 4394f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 4395f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 4396f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4397f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 4398f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 4399f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 4400f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 4401f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 4402f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 4403f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 4404f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 4405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 4406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 4407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 4409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 4412f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 4413f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4414f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 4415f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 4416f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4417f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4418f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 4419f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 4420f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 4421f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 4422f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 4423f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 4425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4427f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 4428f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 4429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4431f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 4432f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 4433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4435f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 4436f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 4437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 4438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 4440f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 4441f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 4443f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 4444f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 4445f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4446f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 4447f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4448f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4449f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 4450f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 4451f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 4452f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4453f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 4454f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 4455f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 4456f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4457f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4458f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 4459f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 4460f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4468bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 44699bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 44709bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 44719bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44744df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 44754df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 44764df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 44774df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 44784df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 44794df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 4480bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 44814df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 44824df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 44830bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 44840bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 44850bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 44860bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 44870bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 44880bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 44890bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 44900bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 4491bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 44920bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 44930bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4579f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 4580f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 4581f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 4582f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 4583f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4584f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 4585f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 4586f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4587f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 4588f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 4589f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 4590f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 4591f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 4592f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 4593f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 4594f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4595f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4596f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 4597f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 45980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 46419c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 46439c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 46464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews; 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mCurrentScrap; 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapViews.size(); 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (size > 0) { 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return scrapViews.remove(size - 1); 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void addScrapView(View scrap) { 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 47109b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 47119b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 47129b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 4717a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 4720a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 4739a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 474221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy int whichScrap = ((AbsListView.LayoutParams) victim.getLayoutParams()).viewType; 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47469b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 47489b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 47499b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 47509b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4757a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 480952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 481052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 481152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 481252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 481352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 481452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 481552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 481652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 481752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 481852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 481952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 482052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 482152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 482252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 482352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 482452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 482552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 482652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 482752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 4828266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 482952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 483052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 483152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 483252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 483352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 483452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 483552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 483652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 483752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 483852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 483952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 484052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 484152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 4844