AbsListView.java revision c6cc0f8c19d9eccf408a443fa2bf668af261dcd0
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 23637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.content.res.Resources; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 58736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 60b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 61b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 69d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 70d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 71d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 82f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 86499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 192f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 273079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * Set to true if we would like to have the selector showing itself. 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * We still need to draw and position it even if this is false. 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn boolean mSelectorShowing; 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3390211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 518d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 519d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 520d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 521d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 522d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 551d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5584296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5594296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 56021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 56524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 56624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 623da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 624da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 625da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 626da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 627da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 62807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 62907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 63007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 631da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 685e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 690e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 691e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 692e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 693e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 694e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 695e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 74820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 74920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 755d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 756df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 761d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7634296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 770d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 790d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 991bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1015bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1038bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1039bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11042bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11052bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11074ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11084ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 117116bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12580a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 12809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13256bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1381a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 13822614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1383f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1384f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1404a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14052614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1407f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1408f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1409f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1412f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1424a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14252614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1427f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1440f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1459f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 146999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 14817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 14827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 14837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 14847becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 14857becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 14867becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 14877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 14887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 14897becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 149299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 149399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 149499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 149599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 149699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 149799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1516a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1517a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1518f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1519f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15202614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1544079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1554f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1556f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15622614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15632614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1564a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1565a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1566a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1567a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1568a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1574d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 15800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1644079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 1645079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16890b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 16900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17170b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17180b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17190b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17200b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1769da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1770da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1771da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1772da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1773da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1774da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1775da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1776da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1777da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1778da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1784d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1789f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1790f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1791f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1792f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1793f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1794f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1795f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 17962c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 17972c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 17982c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 17992c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1800f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1817d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1818d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1819d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1820d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1821d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1827d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1828d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1829d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 193221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 193321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 193721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 193821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1958079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 196621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1967a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1968a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 1985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 1986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 1987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 1988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 1991e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 1992e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 1993e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2000079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelectorShowing) { 2001079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2002079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 204320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 204420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 204520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 204620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 204720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 204820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 204920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 205020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 205420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 205520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 205620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 205720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 205820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 205920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 206020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 206320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 206420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 206520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2073d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2106079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2150079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2168df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2169df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2170df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2171df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2175079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2179ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2180ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2181ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2182ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2189df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2190df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2210079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2211079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2212079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2213079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2214079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2215079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2216079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2217079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2218079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2219079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2223079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2266e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2267e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2268e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2269e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2270e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2271e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22760e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 22770e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 22780e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 228182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 228282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 228382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 22846a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 22856a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 22866a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 22876a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 22886a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 228982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22961f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 22971f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 22981f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 229921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 230021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 230121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23030e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23040e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23050e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23060e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 230882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 230982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 231082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 231182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 231282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23201cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23211cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23221cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2323d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2324d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2325d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2326d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2327d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2328d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 23294032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2330d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2331d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2332d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2333d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2334d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2335d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2336d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2337d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2338d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2339d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2340d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2341d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2342d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2343d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2354670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2355670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2356670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2357670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2358670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 23594032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 23604032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 23614032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 23640fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2368670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 237797566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2441005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2442005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2443005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2444005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2445005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 24467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 24477890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 24487890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 24497890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 24507890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 24517890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24650a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25028350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2510f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2512f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2513f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2516f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2560736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov public boolean onRequestSendAccessibilityEvent(View child, AccessibilityEvent event) { 2561736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov // Add a record for ourselves as well. 2562736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov AccessibilityEvent record = AccessibilityEvent.obtain(); 2563736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov // Set the class since it is not populated in #dispatchPopulateAccessibilityEvent 2564736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov record.setClassName(getClass().getName()); 2565736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov child.dispatchPopulateAccessibilityEvent(record); 2566736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov event.appendRecord(record); 2567736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov return true; 2568736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov } 2569736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov 2570736c2756bf3c14ae9fef7255c119057f7a2be1edSvetoslav Ganov @Override 2571df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2572df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2573df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2574df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2575df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2580dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2581dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2582dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2583df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2584dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2586dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 258845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 258945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 259045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 259145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2595dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2662079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2663079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2664e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27464032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27474032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27484032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 27520fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2762dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2763dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2764dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2765dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2766dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2767dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 277482f3495b146b267f3786997752cef25310176349Romain Guy 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 27904032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27914032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27924032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 28080a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 28090a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 28100a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 2811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 28190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // If we couldn't find a view to click on, but the down event 28200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // was touching the edge, we will bail out and try again. 2821c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // This allows the edge correcting code in ViewAncestor to try to 28220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // find a nearby view to select 2823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28349d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 283579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28369d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 28544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 28731cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 28741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 28751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 28761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2878110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2879110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2880110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2881110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2882110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2883110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2884110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2885110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 28889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2889a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2901637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 29056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 29076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 29096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2917637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2944637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 294779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2948b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2949b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 295079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 295179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 295279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 295379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 29730fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentIfNeeded(); 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 2981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 2982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 2986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 2987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 2988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 3008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 3009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 3016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 3017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 30309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3036498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3037498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3038498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3039498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3040498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 30419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 30429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 30469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 30479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3062005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3063005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3067079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 30726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 30739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3075d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3076d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3077d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3078d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3079d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3081079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3085d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3088d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3089d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3090d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3091005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3092005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3093079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3096005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3097d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3101079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 31046198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 31056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 31116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 31136198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 31146198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31156198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 31166198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 31176198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 311921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 312021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 31306198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 31316198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 31326198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31336198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31356198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3136f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3137f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3138f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3139d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3140d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3141d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 31424032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31434032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31444032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 31456198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 315179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3166637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3168637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3173637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3174637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3175637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3176637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3177637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 31800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 31879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 31959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 32001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 32011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 32021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 32031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3214637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3227637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32504cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 32514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 32524cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 32534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 32544cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 32554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 32574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 32584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 32604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32629bc30d31322848d61f518c1db43544988faaba8fAdam Powell 32639bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 32649bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 32659bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 32669bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 32679bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 32689bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 32699bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 32709bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 32719bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 32729bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 32739bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 32749bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 32759bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 32769bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32779bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 32789bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 32799bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 32809bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 32819bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 32829bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32890a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 32900a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 32910a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 32920a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 32930a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 32940a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 32950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (clampedY) { 32960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // Velocity is broken by hitting the limit; don't start a fling off of this. 32970a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mVelocityTracker != null) { 32980a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mVelocityTracker.clear(); 32990a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33010a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 330633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 330733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 330833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 330933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 331033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 331133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 331233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 331333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3314275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 331533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 331633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 331733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 331833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 331933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 332033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 332133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 332233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 332333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 332433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 332533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 33279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 333207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 333307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 333407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 333607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 33377d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3338a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3345637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 334607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 334707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 334807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 335107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 33527d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3353e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3354a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3355637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3356637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3357637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 337507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 337607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 337707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 337807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 337907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 338007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 338107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 338207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 33870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 339779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 34044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 34054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 34064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 340879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 34129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 342079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 34214b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 34224b4f40f84e72579417604143e5f42115769649b8Romain Guy } 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = ev.findPointerIndex(mActivePointerId); 34304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34554cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 34564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 34574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 34584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 34594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 34604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 34614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 34624cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 34634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 34644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 34654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 34674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 34684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 35040046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3526d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3527d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3528d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3529d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3531d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3532d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3533d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3534d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3535d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3536d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3537d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3538d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3539d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3540d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3541d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3542d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3543d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3544b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3545d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3546d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3547d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3548d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3549d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3550d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 355179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 355579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35691cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 35701cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 35711cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 35721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3575637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3582e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36074032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 36084032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 36094032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 36104032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 36114032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3617458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3618458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3619458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3620458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3625d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 362879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3629d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 363021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 363121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 363221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3633d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 36345e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 36355e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 36365e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 36375e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 36385e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3639d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3640d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3641d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3642d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 364679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 364779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3648d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3651d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3652d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3653d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3654d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3655d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 365779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 365879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 365979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 366079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 36699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3680637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3681637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3684637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3686d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3690d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37073cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 37083cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 37093cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3725d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3757458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3758458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 37594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3760458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3761458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3762458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3763458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3764e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 37654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3766458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3770458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 377152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3772e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3773e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 37744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3775458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3776458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3777458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3779458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 37804032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 37814032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3782458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3783458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 37844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37854bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 37864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3788458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3789458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3790458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3791458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3793458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3795458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 37964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3798458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3804458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 38104032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38114032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3817458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38204bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3821fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3823458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3825458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3837fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3850458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3869e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3870e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3871322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3872322171b333a1c796fcc1428a96ea1d854a3881faErik } 3873322171b333a1c796fcc1428a96ea1d854a3881faErik 3874322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 38754032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38764032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3877e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3878e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3879e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3880e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3881e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3882e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3883e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3884371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3885371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3886e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 38874bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3888e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3889e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3890e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3891e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3892e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3893e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3894e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3895322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3896e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3897e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3898e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3899371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 39004ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3901322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3902322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3903371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3904234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3905e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3906e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3907e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3911e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3913371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3914371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3915371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3916371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 39194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3922458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 39244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 39260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3939029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3941029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3942458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 39457e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3953029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 39544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3955029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3956029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3958458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3964458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 3969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 39717e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 39794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 39940b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 39950b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 3998029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4000029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 40047e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4024458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40287e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4041e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4042234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4043234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4044234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4045234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4046234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4047e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4048371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4049234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4050234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4051e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4052371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4053e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40544032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4055e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 40564032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 40574032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 40584032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 40594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 40604032252c997be9f5d013054dc23ace855007b3a5Adam Powell 40614032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 40624032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 40634032252c997be9f5d013054dc23ace855007b3a5Adam Powell 40644032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 40654032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 40664032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4067e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4068e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 40694032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4070e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4071e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4072e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4073e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4074234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4075234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4076234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4077e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4078e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4079e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4080e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 40884bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 40894bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 40904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 40914bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 40924bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 40934bede9e425875542976a422222510fa4056a8339Romain Guy */ 40944bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 40954bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 40964bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 40974bede9e425875542976a422222510fa4056a8339Romain Guy } 40984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 40994bede9e425875542976a422222510fa4056a8339Romain Guy } 410021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 410121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 410221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 410321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 41044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 410521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 410621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 410721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 410821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 410921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 41104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41114bede9e425875542976a422222510fa4056a8339Romain Guy /** 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4122322171b333a1c796fcc1428a96ea1d854a3881faErik 4123322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4124322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4125322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4126322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4127322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4128322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4129322171b333a1c796fcc1428a96ea1d854a3881faErik * 4130322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4131322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4132322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4133322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4134322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4135322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4136322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4137322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4138322171b333a1c796fcc1428a96ea1d854a3881faErik } 4139322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4140322171b333a1c796fcc1428a96ea1d854a3881faErik } 4141322171b333a1c796fcc1428a96ea1d854a3881faErik 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4143e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4144e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4145e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4146e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4147e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4148e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4149e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4150e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4151e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4152e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4153e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4154e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4155e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4156e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4157e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4158e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4159e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4160e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 41644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4178458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4179458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4180458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4182458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4183458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4184458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41854032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4186299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 41874032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 41884032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 41894032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 41904032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 41914032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 41924032252c997be9f5d013054dc23ace855007b3a5Adam Powell 419379303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 41944032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 41954032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 41964032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 41974032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 41984032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 41994032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42004032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42014032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42020046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4203299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4204299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4207499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4208499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4209499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4210499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4211499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4212499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4213499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4214499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4215499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4216499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4217499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4218499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4219499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4220499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4221499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4222499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4223499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4224499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4225499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4226499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4227499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4228499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4229499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4230499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4231499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4232499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4233499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4234499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4235499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4236499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4237499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4238499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4239499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4240499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4241499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4242499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 42439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 42449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 42469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 42470211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 42489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 42526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 42536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 42546dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 42556dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 42560211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 42576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 42586dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 42596dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 42606dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42616dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 42626dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 42636dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42646dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42656dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 42666dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 42679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42686dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 42699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 42729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 42739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 42749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 42759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 42769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 42789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 42809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 42819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 42869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4290bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4291bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4292bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4293bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4294bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4295bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4296bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4297bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4298bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4299bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 43009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4301bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4302bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 43039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 43049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 43079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4322bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4326637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4327bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 43320a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 43330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 43340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 43350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43370a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4339458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4341458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4343029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4344029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4345029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4346029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4348458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4354458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 43558c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 43568c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43578c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 43588c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4359458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4360458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4361458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4365458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4366458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4367079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4368458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4369458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4370458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4371458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4372458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4376458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4377458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43788c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 43798c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43808c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 43818c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4382458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4385458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4391079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4412458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4420458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4423029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 44242a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 44252a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4426079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4427079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4428079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4429079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4431079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 44322a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4433079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4434079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4435029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4436029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 44414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 44579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 44679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 44689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 44699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 44709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 44729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 44749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 44769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4477ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4478ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4479ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 44809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 44819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 4486079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorShowing = false; 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 45094cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4516637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4517637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4518637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4519637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4529637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45384e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 45394e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 45408d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 45418d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 45424e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 45438d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4544becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4545becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4546becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 45474e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45488d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 45494e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 45629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 45649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 46454032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46464032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46474032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46780785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4681da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4682da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4683da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4684da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4685da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4686da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 46870785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 46880785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 46890785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 46900785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 46910785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 46920785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 46930785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 46940785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 46950785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 46960785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 46970785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 46980785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4791079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 479543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 479643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 479743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 479843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 479943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 480043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 480143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 480243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 480343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 480443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 480543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 480643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 480743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 480843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 480943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 481024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 481143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 481243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4816d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 48284df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4829b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4835b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 483924443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4842b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48884e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 48894e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 48904e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 48914e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 48924e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 48934e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 48944e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 48974e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 48984e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4919b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 493583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 49368d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 49378d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 4938b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 4939b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 4940b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 4941b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 494283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 494383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 494483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 494583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 494683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 494783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4953cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4957b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 4962105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4984b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 4985b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 4986b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 4987b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 4988c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 4989c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 4990c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 4991c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 4992c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 49931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 49941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 49951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 49961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 49971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 49981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 49991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 50001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 50011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 50021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 50061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 50071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 50081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 50091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 50101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 50111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 50121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 50131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 50141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 50161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 50181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 50221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 50231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5024c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 50251bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 50261bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 50281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 50301bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 50311bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 50321bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5033c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5034c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5035b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50360a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5037b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5038b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5039b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5040b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5041b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5042b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5043b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5044b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50450a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5046b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 50554df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 50564df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5059b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5060b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5061b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5062b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5063b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5064105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5075d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 510724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 511243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51211bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51271bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 51281bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 51291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5132c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 51411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52175be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 52185be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 52195be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 52205be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 52215be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 522652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 522752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 522852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 522952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 523052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 523152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 523252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 523352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52427b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 526113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 527613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 527713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 527813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 527913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 528013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 528113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 528213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 528313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 528413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 528513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 528613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 528713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 528813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 528913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 529013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 529152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 529213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 529313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 529413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 529513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 529613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 529713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 529813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 529913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 530013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 530113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 530213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 530313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 530413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 530513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 530613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 530713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 530813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 530913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 531013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 531113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 531213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 531313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 531413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 531513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 531613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 531713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 531813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 531952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 532013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 532113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 532213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 532313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 532452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 532513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 532613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 532713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 532813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 532913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 533013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 533113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 533913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5340499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5341499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5342499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5343499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5344499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 53459b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 53469b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 53473ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 53483ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 53493ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 53503ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 53513ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 53523ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 53533ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 53549b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 53559b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 53569b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5357499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5358499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5359499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5361499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5362499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 536316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5364499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 536616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5367fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5368fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 536916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 537116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5374499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5375499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5376499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5377499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5378fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5379fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5380fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5381fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5382fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5383499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5384499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5385499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5400b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5401b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5402b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5403b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5404b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5405b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5406b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5407b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5408b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5409b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5410b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5411b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5412b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5413b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5414b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5415b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5416b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5417b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5419f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5420f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5421f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5422f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5423f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5424f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5425f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5426f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5427f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5428f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5431f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5432f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5435f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5436f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5440f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5441f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5443f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5444f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5445f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5446f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5447f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5448f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5449f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5450f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5451f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5452f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5453f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5454f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5455f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5456f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5457f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5458f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5459f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5460f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5463f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5472f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5474f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5476f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5477f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5478f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5479f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5480f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5481f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5482f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5483f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5484f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5485f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5486f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5487f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5495bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 54969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 54979bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 54989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 55024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 55034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 55044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 55054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 55064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5507bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 55094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 55100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 55110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 55120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 55130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 55140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 55150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 55160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 55170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5518bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 55200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5521079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5522079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5523079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5524079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5525079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5526079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5527079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 55559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 55589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 55599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5614f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5615f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5616f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5617f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5618f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5619f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5620f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5621f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5622f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5623f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5624f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5625f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5626f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5627f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5628f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5629f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5630f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5631f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 56320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 56759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 56779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 56804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5708079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5712079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 57339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 57359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5739079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5740079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5742a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5745a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5764a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5767079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5768079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5769079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 57759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 57779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5784a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5785079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 583752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 583852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 583952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 584052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 584152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 584252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 584352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 584452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 584552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 584652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 584752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 584852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 584952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 585052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 585152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 585252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 585352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 585452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 585552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5856266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 585752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 585852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 585952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 586052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 586152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 586252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 586352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 586452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 586552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 586652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 586752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 586852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 586952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5871079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5872079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5873079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5874079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5875079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5876079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5877079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5878079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5879079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5880079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5881079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5882079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5883079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5884079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5885079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5886079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5887079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5888079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5890