AbsListView.java revision ee78b173aae7ecb35b065c7499ac4f89b9c2f06e
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; 58a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 61b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 62b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 70d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 71d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 72d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 83f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2682148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 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 6314e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 634da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 635b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 636b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 637b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell private boolean mIsAttached; 638b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 639b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 640ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 641ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 642ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 643ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 644ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 693e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 694e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 695e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 696e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 697e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 698e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 699e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 700e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 701e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 702e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 703e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 704e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 705e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 706e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 707e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 708e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 760f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 76120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 76220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 763f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 767d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 768d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 769df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 770d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 771d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 772d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 773d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 774d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7754296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7764296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7774296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7784296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1004bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1028bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1050bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1051bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1052bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1113637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11172bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11182bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11204ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11214ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11460a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 117820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 117920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 118020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 118220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 118416bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 118520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 120020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 120120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 120220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1274a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1275a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1276a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 1277a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov info.setScrollable(true); 1278a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1279a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1280a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 12814e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 12824e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 12834e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 12844e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 12854e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 12864e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov final int lastPosition = mFirstPosition + getChildCount(); 12874e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == mFirstPosition 12884e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastPosition) { 12894e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 12904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 12914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = mFirstPosition; 12924e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastPosition; 12934e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12944e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12954e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 12964e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12974e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 12984e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov @Override 1299a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1300a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 1301a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setScrollable(true); 1302a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1303a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setFromIndex(mFirstPosition); 1304a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setToIndex(mFirstPosition + getChildCount()); 1305a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setItemCount(mItemCount); 1306a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1307a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1308a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1309a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1310a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 1311a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // Do not append text content to scroll events they are fired frequently 1312a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // and the client has already received another event type with the text. 1313a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() != AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1314a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.dispatchPopulateAccessibilityEvent(event); 1315a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1316a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov return false; 1317a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1318a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13836bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1439a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14402614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1441f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1442f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1462a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14632614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1482a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14832614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1484f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1485f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1497f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1517f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 152799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15387becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15397becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15407becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15417becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15427becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15437becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15447becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15457becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15467becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 155099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 155199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 155299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 155399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 155499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 155599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1574a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1575a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1577f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15782614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1602079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1612f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1613f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1614f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1615f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1616f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1617f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1618f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1619f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16202614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16212614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1622a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1623a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1624a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1625a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1626a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1631d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1632d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1678b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1679b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1680b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1681b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1682b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1683b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1684b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1709079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17530b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17540b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17740b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17750b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1833da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1834da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1835da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1836da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1837ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1838da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1839da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1840ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1841da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1842da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1847d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1853f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1854f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1855f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1856f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1857f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1858f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1859f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 18602c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18612c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18622c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18632c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1864f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1878d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1879d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1880d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1881d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1882d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1883d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1884d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1885d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1891d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1892d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1893d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 199621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 199721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 200121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 200221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2022079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 203021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2031a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2032a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2048079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2049079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2050079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2051079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2052079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2055e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2056e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2057e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2064a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2065079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2066079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 210720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 210820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 210920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 211020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 211120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 211220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 211320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 211420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 211520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 211620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 211720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 211820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 211920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 212020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 212120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 212220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 212320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 212420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 212520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 212620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 212720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 212820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 212920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 213020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 213120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2137d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2170079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2214079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2232df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2233df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2234df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2235df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2239079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2243ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2244ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2245ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2246ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2253df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2254df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2287079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2330e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2331e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2332e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2333e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2334e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2335e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23400e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 23410e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 23420e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 234582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 234682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 234782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 23486a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 23496a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 23506a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 23516a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 23526a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 235382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2354b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 23559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 23599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23611f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23621f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23631f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 236421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 236521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 236621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23680e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23690e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23700e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23710e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 237382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 237482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 237582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 237682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 237782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23781cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23791cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23801cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23811cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23821cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23831cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2388d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2389d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2390d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2391d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2392d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2393d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 23944032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2395d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2396d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2397d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2398d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2399d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2400d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2401d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2402d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2403d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2404d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2405d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2406d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2407d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2408d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2409b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2420670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2421670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2422670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2423670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2424670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 24254032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 24264032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 24274032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 24300fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2434670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 244397566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2507005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2508005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2509005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2510005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2511005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 25127890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 25137890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 25147890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 25157890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 25167890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 25177890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25688350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2570f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2571f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2572f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2573f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2574f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2575f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2577f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2578f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2580f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2602fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2603fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2604fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2605fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2606fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2607fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2608fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2609fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2610fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2611fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2612fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2613fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2614fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2615fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2616fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2641df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2642df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2643df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2644df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2645df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2650dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2651dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2652dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2653df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2654dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2656dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 265845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 265945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 266045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 266145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2665dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2732079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2733079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2734e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27600a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28101e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 2811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28174032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28184032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28194032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 28230fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2833dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2834dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2835dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2836dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2837dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2838dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 28449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 284582f3495b146b267f3786997752cef25310176349Romain Guy 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28564cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 28614032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28624032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28634032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2865044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2869044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2873637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2874637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2875637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2878637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2879637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 28810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 28820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 28830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 2884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2894637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28999d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 290079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 29019d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2904637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2914fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 2915fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 2916fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 2917fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 2918fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2919fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 29242585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 29252585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 29262585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 29272585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 29282585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 29294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 29481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 29491cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 29501cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 29511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2953110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2954110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2955110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2956110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2957110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2958110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2959110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2960110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 29629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 29639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2964a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 29806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 29826198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 29846198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 3008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 3009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 3011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 3012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 3016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 3017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 302279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 3023b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 3024b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 302579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 302679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 302779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 302879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 3032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 3033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 3034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 3035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 3037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 3038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 3039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 3041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3044044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int overScrollDistance = -incrementalDeltaY; 3045044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 3046044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell overScrollDistance = -oldScroll; 3047044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell incrementalDeltaY += overScrollDistance; 3048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3049044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell incrementalDeltaY = 0; 3050044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3051044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3052044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (overScrollDistance != 0) { 3053044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 3059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 3060044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 3061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 3065044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3072044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3073044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3074044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (incrementalDeltaY != 0) { 3075044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Coming back to 'real' list scrolling 3076044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScrollY = 0; 3077044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell invalidateParentIfNeeded(); 3078044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3079044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // No need to do all this work if we're not going to move anyway 3080044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (incrementalDeltaY != 0) { 3081044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3083044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3084044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 3085044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3086044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // We did not scroll the full amount. Treat this essentially like the 3087044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // start of a new touch scroll 3088044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int motionPosition = findClosestMotionRow(y); 3089044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3090044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionCorrection = 0; 3091044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell View motionView = getChildAt(motionPosition - mFirstPosition); 3092044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 3093044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionY = y; 3094044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionPosition = motionPosition; 3095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 3097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3112498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3113498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3114498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3115498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3116498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 31329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3138005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3139005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3143079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3151d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3152d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3153d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3154d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3155d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 31569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3157079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3161d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3164d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3165d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3166d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3167005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3168005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3169079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3172005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3173d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3177079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 31806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 31816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3182637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 31876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 31896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 31906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 31926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 31936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 319521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 319621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3205637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 32066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 32076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 32086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 32104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3212f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3213f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3214f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3215d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3216d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3217d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 32184032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32194032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32204032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 32216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 322779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3232637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3233637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3234637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3235637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3236637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3237637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3238637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3239637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3240637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3241637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3242637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 32761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 32771cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 32781cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 32791cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 32809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3296637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 33274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 33284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 33294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 33304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 33314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 33334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 33344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 33364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33389bc30d31322848d61f518c1db43544988faaba8fAdam Powell 33399bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 33409bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 33419bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 33429bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 33439bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 33449bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 33459bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 33469bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 33479bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 33489bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 33499bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 33509bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 33519bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 33529bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33539bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 33549bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 33559bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33569bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 33579bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 33589bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 33660a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 33670a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 33680a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 33690a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 33700a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 33710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 337633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 337733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 337833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 337933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 338033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 338133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 338233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 338333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3384275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 338533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 338633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 338733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 338833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 338933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 339033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 339133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 339233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 339333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 339433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 339533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 340207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 340307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 340407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 340607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 34077d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3408a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 341607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 341707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 341807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3419637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 342107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 34227d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3423e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3424a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3441637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 344507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 344607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 344707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 344807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 344907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 345007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 345107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 345207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 34570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 346779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 34744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 34754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 34764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 347879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 34809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 34889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 349079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 34914b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 34924b4f40f84e72579417604143e5f42115769649b8Romain Guy } 34939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34992585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 35002585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 35012585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 35022585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 35032585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 35304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 35314cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 35324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 35334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 35344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 35354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 35364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 35374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 35384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 35394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3540637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 35414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 35424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 35709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 35759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 35769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 35779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 35780046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 35799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 35859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 35869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3600d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3601d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3602d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3603d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3605d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3606d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3607d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3608d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3609d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3610d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3611d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3612d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3613d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3614d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3615d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3616d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3617d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3618b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3619d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3620d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3621d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3622d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3623d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3624d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 362579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 362979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 36409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 36451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 36461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3648458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3656e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3661044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3662044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3666637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3672637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3673637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3678637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3679637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36804032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 36814032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 36824032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 36834032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 36844032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3685637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3691458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3698d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 370179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3702d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 370321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 370421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 370521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3706d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 37075e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 37085e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 37095e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 37105e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 37115e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3712d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3713d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3714d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3715d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 371979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 372079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3721d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3724d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3725d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3726d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3727d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3728d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 373079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 373179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 373279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 373379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 37389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 37499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 37569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3759d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3763d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37803cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 37813cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 37823cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3798d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3812044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3813044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3816044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3817044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3818044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3819044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3820044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3821044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3822044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3823044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3824044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3825044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3826044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3827044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 38444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3849e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 38504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3855458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 385652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3857e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3858e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 38594e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 38654032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38664032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38704bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 38714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 38954032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38964032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39054bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3906fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3911458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3915458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3917458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3918458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3922fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3933458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3945458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 39514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3954e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3955e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3956322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3957322171b333a1c796fcc1428a96ea1d854a3881faErik } 3958322171b333a1c796fcc1428a96ea1d854a3881faErik 3959322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 39604032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39614032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3962e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3963e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3964e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3965e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3966e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3967e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3968e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3969371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3970371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3971e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 39724bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3973e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3974e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3975e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3976e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3977e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3978e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3979e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3980322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3981e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3982e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3983e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3984371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 39854ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3986322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3987322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3988371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3989234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3990e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3991e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3992e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3996e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3998371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3999371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 4000371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 4001371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 40044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 40094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 40110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4024029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4026029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40307e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4038029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 40394e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4040029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4041029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 40567e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 40644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 40790b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 40800b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 4083029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4085029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 40897e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 41137e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4126e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4127234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4128234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4129234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4130234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4131234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4132e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4133371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4134234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4135234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4136e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4137371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4138e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 41394032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4140e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 41414032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 41424032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 41434032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 41444032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 41454032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41464032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 41474032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 41484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41494032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 41504032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 41514032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4152e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4153e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 41544032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4155e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4156e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4157e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4158e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4159234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4160234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4161234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4162e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4163e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4164e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4165e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 41734bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 41744bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 41754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 41764bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 41774bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 41784bede9e425875542976a422222510fa4056a8339Romain Guy */ 41794bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 41804bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 41814bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 41824bede9e425875542976a422222510fa4056a8339Romain Guy } 41834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 41844bede9e425875542976a422222510fa4056a8339Romain Guy } 418521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 418621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 418721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 418821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 41894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 419021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 419121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 419221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 419321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 419421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 41954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41964bede9e425875542976a422222510fa4056a8339Romain Guy /** 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4198458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4199458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4203458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4207322171b333a1c796fcc1428a96ea1d854a3881faErik 4208322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4209322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4210322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4211322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4212322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4213322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4214322171b333a1c796fcc1428a96ea1d854a3881faErik * 4215322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4216322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4217322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4218322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4219322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4220322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4221322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4222322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4223322171b333a1c796fcc1428a96ea1d854a3881faErik } 4224322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4225322171b333a1c796fcc1428a96ea1d854a3881faErik } 4226322171b333a1c796fcc1428a96ea1d854a3881faErik 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4228e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4229e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4230e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4231e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4232e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4233e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4234e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4235e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4236e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4237e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4238e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4239e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4240e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4241e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4242e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4243e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4244e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4245e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 42494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4261458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42704032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4271299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 42724032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 42734032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 42744032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 42754032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 42764032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 42774032252c997be9f5d013054dc23ace855007b3a5Adam Powell 427879303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 42794032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 42804032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 42814032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 42824032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 42834032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 42844032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42854032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42864032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42870046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4288299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4289299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4290458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4292499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4293499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4294499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4295499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4296499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4297499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4298499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4299499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4300499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4301499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4302499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4303499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4304499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4305499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4306499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4307499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4308499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4309499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4310499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4311499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4312499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4313499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4314499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4315499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4316499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4317499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4318499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4319499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4320499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4321499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4322499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4323499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4324499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4325499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4326499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4327499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 43320211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 43376dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 43386dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 43396dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 43406dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 43410211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 43426dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 43436dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 43446dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 43456dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43466dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 43476dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 43486dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43496dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43506dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43536dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4362458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 43639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4364458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 43659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 43669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4367458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 43689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 43719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 43729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 43749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4375bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4376bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4377bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4378bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4379bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4380bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4381bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4382bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4383bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4384bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4386bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4387bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 43919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 43939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 43999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 44019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4407bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4408637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4409637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4412bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4414637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4415637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4416637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 44170a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 44180a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 44190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 44200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 44279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4428029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4429029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4430029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4431029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 44329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 44359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 44408c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 44418c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44428c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 44438c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4452079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4456458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44638c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 44648c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44658c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 44668c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4472458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4473458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4475458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4476079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4508029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 45092a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 45102a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4511079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4516079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 45172a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4518079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4519079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4520029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4521029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 45264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 45539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 45599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 45619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4562ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4563ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4564ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 45669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 45934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46224e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 46234e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 46248d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 46258d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 46264e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 46278d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4628becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4629becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4630becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 46314e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 46328d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 46334e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 47294032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47304032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47314032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 47383c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 4752ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 4753ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47650785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4768da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4769da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4770da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4771da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4772da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4773da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 47740785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 4775ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 47760785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 47770785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 4778ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 4779ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 47800785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 47810785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 47820785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47830785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 47840785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 47850785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 47860785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 48429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 48439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 48459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 48499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 48509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4879079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 488343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 488443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 488543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 488643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 488743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 488843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 488943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 489043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 489143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 489243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 489343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 489443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 489543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 489643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 489743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 489824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 489943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 490043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4904d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 49164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4917b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4923b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 492724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4930b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 49774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 49784e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 49794e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 49804e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 49814e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 49824e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 49854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 49864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5007b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 502383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 50248d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 50258d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5026b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5027b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5028b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5029b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 503083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 503183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 503283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 503383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 503483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 503583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5041cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5045b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5050105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5072b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5073b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5074b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5075b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5076c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5077c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5078c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5079c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5080c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 50811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 50821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 50831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 50841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 50851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 50871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 50881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 50891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 50901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 50941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 50951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 50961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 50971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 50981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 50991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 51001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 51011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 51021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 51041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 51061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 51081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 51091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 51101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 51111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5112c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 51131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 51141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 51161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 51181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 51191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 51201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5121c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5122c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5123b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 51240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5125b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5126b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5127b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5128b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5129b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5130b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5131b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5132b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 51330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5134b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 51434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 51444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5147b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5148b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5149b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5150b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5151b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5152105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5163d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 51749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 519524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 520043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 52091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 52161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 52171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5220c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 52291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 52471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 53055be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 53065be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 53075be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 53085be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 53095be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 531452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 531552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 531652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 531752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 531852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 531952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 532052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 532152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53307b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 534913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 536413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 536513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 536613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 536713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 536813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 536913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 537013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 537113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 537213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 537313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 537413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 537513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 537613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 537713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 537813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 537952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 538013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 538113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 538213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 538313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 538413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 538513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 538613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 538713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 538813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 538913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 539013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 539113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 539213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 539313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 539413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 539513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 539613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 539713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 539813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 539913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 540013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 540113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 540213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 540313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 540413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 540513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 540613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 540752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 540813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 540913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 541013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 541113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 541252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 541313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 541413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 541513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 541613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 541713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 541813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 541913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5420637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5422637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5424637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 542713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5428499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5429499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5430499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5431499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 54339b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 54349b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 54353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 54363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 54373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 54383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 54393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 54403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 54413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 54429b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 54432148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 54449b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5445499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5446499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5447499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5448499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 54492148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 54502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 54512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 54522148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 54532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 54542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 54552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 54562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5457499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5458499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 545916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5460499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5461499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 54622148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 54632148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 54642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 54652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 546616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5467fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5468fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 546916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5470499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 547116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5472499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5473499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5474499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5475499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5476499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5477499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5478fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5479fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5480fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5481fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5482fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5483499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5484499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5485499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5500b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5501b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5502b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5503b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5504b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5505b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5506b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5507b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5508b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5509b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5510b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5511b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5512b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5513b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5514b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5515b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5516b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5517b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5520f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5522f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5523f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5524f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5525f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5526f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5527f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5531f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5534f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5535f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5536f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5537f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5538f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5547f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5548f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5549f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5550f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5551f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5552f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5553f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5554f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5555f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5556f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5557f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5558f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5559f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5560f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5562f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5563f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5564f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5565f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5566f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5567f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5568f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5569f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5570f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5571f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5572f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5573f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5574f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5575f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5577f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5578f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5580f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5581f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5584f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5585f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5586f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5587f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5595bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 55969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 55979bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 55989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 56024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 56034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 56044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 56054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 56064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5607bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 56084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 56094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 56100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 56110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 56120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 56130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 56140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 56150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 56160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 56170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5618bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 56190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 56200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5621079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5622079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5623079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5624079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5625079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5626079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5627079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 56719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5714f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5715f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5716f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5717f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5718f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5719f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5720f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5721f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5722f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5723f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5724f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5725f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5726f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5727f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5728f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5729f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5730f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5731f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 57320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 57759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 57779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 57804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5808079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5812079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5823079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 58339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 58349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 58359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5839079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5840079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5842a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5845a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5864a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5867079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5868079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5869079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 58759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 58769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 58779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5884a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5885079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 59089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 593752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 593852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 593952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 594052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 594152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 594252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 594352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 594452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 594552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 594652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 594752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 594852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 594952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 595052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 595152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 595252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 595352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 595452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 595552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5956266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 595752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 595852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 595952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 596052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 596152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 596252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 596352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 596452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 596552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 596652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 596752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 596852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 596952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5971079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5972079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5973079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5974079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5975079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5976079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5977079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5978079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5979079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5980079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5981079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5982079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5983079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5986079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5987079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5988079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5990