AbsListView.java revision a79f4b7df9d6d80b9371ba289040a60fa93bb87c
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 /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 274079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 275079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 276079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 278079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3340211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4574e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4580b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4861cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5010a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 513d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 514d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 515d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 516d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 517d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 544d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 546d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5516dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5526dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5534296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5544296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 55521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 55721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 55924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 56024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 56124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5634cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5746dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 576637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 577637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 578637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 579637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 580637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 619da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 620da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 621da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 622da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 62307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 62407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 62507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 626da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 675e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 676e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 677e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 678e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 679e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 685e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 690e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7350a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 74320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 74420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 750d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 751df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 752d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 753d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 755d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 756d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7574296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7584296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7594296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7604296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 764d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 765d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 785d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 786f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 787f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 789f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 790f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 986bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1010bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1032bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1033bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1034bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1095637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1096637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1097637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 10992bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11002bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11024ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11034ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1104637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 113120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 113220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 113320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 113420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 116616bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 118220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 118420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 118520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11920a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12530a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1256a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1257a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1258a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 1259a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov info.setScrollable(true); 1260a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1261a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1262a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1263a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1264a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 1265a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setScrollable(true); 1266a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1267a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setFromIndex(mFirstPosition); 1268a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setToIndex(mFirstPosition + getChildCount()); 1269a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setItemCount(mItemCount); 1270a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1271a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1272a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1273a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1274a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 1275a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // Do not append text content to scroll events they are fired frequently 1276a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // and the client has already received another event type with the text. 1277a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() != AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1278a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.dispatchPopulateAccessibilityEvent(event); 1279a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1280a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov return false; 1281a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1282a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13476bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1403a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14042614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1405f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1406f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1426a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14272614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1428f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1429f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1430f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1431f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1432f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1446a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1448f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1449f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1481f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 149199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15027becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15037becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15047becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15057becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15067becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15087becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15097becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15107becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15117becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 151499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 151599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 151699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 151799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 151899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 151999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1538a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1539a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15422614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1566079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1576f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1577f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1578f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1580f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1581f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15842614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15852614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1586a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1587a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1588a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1589a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1590a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1595d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1596d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1666079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1790da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1791da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1792da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1793da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1794da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1795da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1796da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1797da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1798da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1799da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1802d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1803d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1804d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1805d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1810f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1811f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1812f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1813f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1814f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1815f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1816f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 18172c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18182c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18192c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18202c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1821f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1835d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1836d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1837d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1838d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1839d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1840d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1841d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1848d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1849d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1850d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 195321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 195421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 195821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 195921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1979079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 198721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1988a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1989a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2005079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2006079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2007079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2008079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2009079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2012e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2013e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2014e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2021a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2022079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2023079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 206420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 206520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 206620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 206720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 206820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 206920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 207020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 207120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 207220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 207320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 207420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 207520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 207620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 207720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 207820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 207920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 208020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 208120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 208220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 208320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 208420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 208520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 208620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 208720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 208820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2094d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2171079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2189df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2190df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2191df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2192df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2196079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2200ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2201ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2202ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2203ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2210df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2211df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2231079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2232079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2233079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2234079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2235079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2236079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2237079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2238079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2239079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2240079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2244079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2287e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2288e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2289e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2290e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2291e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2292e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 22970e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 22980e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 22990e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 230282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 230382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 230482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 23056a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 23066a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 23076a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 23086a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 23096a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 231082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23171f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23181f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23191f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 232021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 232121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 232221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23240e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23250e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23260e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23270e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 232982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 233082afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 233182afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 233282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 233382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2344d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2345d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2346d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2347d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2348d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2349d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 23504032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2351d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2352d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2353d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2354d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2355d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2356d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2357d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2358d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2359d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2360d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2361d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2362d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2363d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2364d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2375670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2376670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2377670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2378670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2379670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 23804032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 23814032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 23824032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2383458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 23850fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2389670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 239897566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24440a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2462005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2463005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2464005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2465005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2466005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 24677890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 24687890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 24697890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 24707890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 24717890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 24727890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 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 25238350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2525f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2526f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2527f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2531f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2534f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2535f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2537f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2557fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2558fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2559fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2560fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2561fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2562fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2563fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2564fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2565fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2566fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2567fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2568fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2569fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2570fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2571fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2596df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2597df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2598df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2599df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2600df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2605dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2606dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2607dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2608df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2609dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 26109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2611dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 261345b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 261445b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 261545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 261645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2620dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2687079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2688079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2689e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27714032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27724032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27734032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 27770fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2787dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2788dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2789dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2790dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2791dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2792dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 279982f3495b146b267f3786997752cef25310176349Romain Guy 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28104cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 28154032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28164032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28174032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2832637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 28330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 28340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 28350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (ev.getEdgeFlags() != 0 && motionPosition < 0) { 28440a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // If we couldn't find a view to click on, but the down event 28450a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // was touching the edge, we will bail out and try again. 2846c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // This allows the edge correcting code in ViewAncestor to try to 28470a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // find a nearby view to select 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return false; 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 286079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28619d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2874fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 2875fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 2876fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 2877fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 2878fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2879fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28842585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 28852585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 28862585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 28872585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 28882585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 28894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 29081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 29091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 29101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 29111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2913110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2914110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2915110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2916110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2917110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2918110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2919110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2920110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2924a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 29406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 29426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 29446198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 298279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2983b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2984b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 298579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 298679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 298779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 298879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection != newDirection) { 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Coming back to 'real' list scrolling 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell incrementalDeltaY = -newScroll; 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 30080fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentIfNeeded(); 3009637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3010637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // No need to do all this work if we're not going to move anyway 3011637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (incrementalDeltaY != 0) { 3012637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 3013637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we are back in 3016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3020637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // We did not scroll the full amount. Treat this essentially like the 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // start of a new touch scroll 3022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionPosition = findClosestMotionRow(y); 3023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = getChildAt(motionPosition - mFirstPosition); 3026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = motionView.getTop(); 3027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, -incrementalDeltaY, 0, mScrollY, 0, 0, 3032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 3033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 3036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 3037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 3038637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) -incrementalDeltaY / getHeight()); 3039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3040637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 3043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) -incrementalDeltaY / getHeight()); 3044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3046637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 3053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3071498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3072498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3073498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3074498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3075498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 30769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3097005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3098005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3102079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3110d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3111d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3112d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3113d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3114d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3116079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 31179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3120d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3123d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3124d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3125d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3126005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3127005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3128079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3131005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3132d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3136079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 31396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 31406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 31466198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 31486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 31496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 31516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 31526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 315421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 315521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 31656198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 31666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 31676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3171f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3172f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3173f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3174d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3175d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3176d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 31774032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31784032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31794032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 31806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 318679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3187637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3208637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 32351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 32361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 32371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 32381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 32399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3243637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32744e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3275637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 32864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 32874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 32884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 32894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 32904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 32924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 32934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 32954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32979bc30d31322848d61f518c1db43544988faaba8fAdam Powell 32989bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 32999bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 33009bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 33019bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 33029bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 33039bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 33049bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 33059bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 33069bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 33079bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 33089bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 33099bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 33109bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 33119bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33129bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 33139bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 33149bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33159bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 33169bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 33179bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 33250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 33260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 33270a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 33280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 33290a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 33300a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (clampedY) { 33310a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // Velocity is broken by hitting the limit; don't start a fling off of this. 33320a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mVelocityTracker != null) { 33330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mVelocityTracker.clear(); 33340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne } 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33360a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 334133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 334233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 334333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 334433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 334533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 334633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 334733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 334833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3349275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 335033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 335133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 335833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 336033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 336707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 336807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 336907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 337107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 33727d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3373a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 338107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 338207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 338307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 338607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 33877d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3388e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3389a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 341007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 341107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 341207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 341307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 341407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 341507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 341607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 341707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 34220a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 34259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 343279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3433637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3434637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3435637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3436637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 34394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 34404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 34414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 344379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 34509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 34519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 34529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 345579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 34564b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 34574b4f40f84e72579417604143e5f42115769649b8Romain Guy } 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34642585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34652585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34662585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34672585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34682585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 34954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 34964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 34974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 34984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 34994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 35004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 35014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 35024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 35034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 35044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 35064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 35074cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 35430046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 35629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3565d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3566d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3567d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3568d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3570d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3571d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3572d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3573d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3574d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3575d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3576d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3577d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3578d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3579d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3580d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3581d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3582d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3583b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3584d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3585d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3586d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3587d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3588d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3589d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 359079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 359479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 36101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 36111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3613458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3621e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int min = mScrollY > 0 ? Integer.MIN_VALUE : 0; 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int max = mScrollY > 0 ? 0 : Integer.MAX_VALUE; 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, min, max, 0, getHeight()); 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36464032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 36474032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 36484032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 36494032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 36504032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3658458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3659458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3662458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3664d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 36659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3666458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 366779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3668d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 366921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 367021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 367121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3672d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 36735e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 36745e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 36755e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 36765e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 36775e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3678d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3679d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3680d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3681d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 368579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 368679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3687d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3690d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3691d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3692d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3693d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3694d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 369679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 369779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 369879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 369979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3707637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3709637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 37159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3725d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3729d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37463cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 37473cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 37483cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3758637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3763637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3764d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int deltaY = scroller.getCurrY() - scrollY; 3779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell startSpringback(); 3782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3796458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 37984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3799458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3800458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3801458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3803e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 38044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3809458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 381052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3811e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3812e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 38134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3816458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3818458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 38194032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38204032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38244bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 38254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3826458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3829458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3830458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 38494032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38504032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3853458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38594bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3860fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3861458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3865458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3872458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3876fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3882458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3902458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 39054e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3908e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3909e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3910322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3911322171b333a1c796fcc1428a96ea1d854a3881faErik } 3912322171b333a1c796fcc1428a96ea1d854a3881faErik 3913322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 39144032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39154032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3916e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3917e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3918e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3919e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3920e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3921e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3922e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3923371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3924371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3925e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 39264bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3927e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3928e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3929e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3930e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3931e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3932e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3933e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3934322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3935e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3936e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3937e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3938371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 39394ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3940322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3941322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3942371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3943234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3944e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3945e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3946e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3950e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3952371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3953371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3954371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3955371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 39584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 39634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 39650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39660b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3978029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3980029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 39847e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3992029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 39934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3994029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 3995029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 40107e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4016458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 40184e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4030458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 40330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 40340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 4037029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4039029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4040458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 40437e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40484e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40677e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4080e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4081234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4082234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4083234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4084234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4085234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4086e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4087371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4088234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4089234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4090e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4091371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4092e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40934032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4094e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 40954032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 40964032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 40974032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 40984032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 40994032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41004032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 41014032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 41024032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41034032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 41044032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 41054032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4106e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4107e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 41084032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4109e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4110e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4111e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4112e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4113234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4114234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4115234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4116e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4117e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4118e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4119e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 41274bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 41284bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 41294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 41304bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 41314bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 41324bede9e425875542976a422222510fa4056a8339Romain Guy */ 41334bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 41344bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 41354bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 41364bede9e425875542976a422222510fa4056a8339Romain Guy } 41374e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 41384bede9e425875542976a422222510fa4056a8339Romain Guy } 413921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 414021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 414121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 414221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 41434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 414421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 414521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 414621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 414721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 414821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 41494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41504bede9e425875542976a422222510fa4056a8339Romain Guy /** 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4161322171b333a1c796fcc1428a96ea1d854a3881faErik 4162322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4163322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4164322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4165322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4166322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4167322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4168322171b333a1c796fcc1428a96ea1d854a3881faErik * 4169322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4170322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4171322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4172322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4173322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4174322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4175322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4176322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4177322171b333a1c796fcc1428a96ea1d854a3881faErik } 4178322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4179322171b333a1c796fcc1428a96ea1d854a3881faErik } 4180322171b333a1c796fcc1428a96ea1d854a3881faErik 4181458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4182e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4183e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4184e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4185e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4186e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4187e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4188e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4189e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4190e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4191e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4192e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4193e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4194e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4195e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4196e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4197e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4198e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4199e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4200458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4201458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4202458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 42034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4205458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4209458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42244032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4225299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 42264032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 42274032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 42284032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 42294032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 42304032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 42314032252c997be9f5d013054dc23ace855007b3a5Adam Powell 423279303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 42334032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 42344032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 42354032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 42364032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 42374032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 42384032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42394032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42404032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42410046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4242299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4243299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4246499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4247499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4248499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4249499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4250499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4251499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4264499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4266499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4278499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 42829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 42839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 42849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 42859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 42860211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 42879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 42916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 42926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 42936dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 42946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 42950211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 42966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 42976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 42986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 42996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 43016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 43026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 43069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 43089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 43229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4330bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4331bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4332bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4333bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4334bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4335bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4336bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4337bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4338bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 43399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4340bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4341bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 43429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 43469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 43479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4357458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4361bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4362637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4363637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4364637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4366bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4367637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 43710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 43720a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 43730a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 43740a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 43759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43760a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4378458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4380458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4382029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4383029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4384029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4385029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4387458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 43899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4390458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4391458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 43948c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 43958c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 43968c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 43978c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4398458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4406079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44178c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 44188c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44198c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 44208c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4425458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4426458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4444458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 44609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4462029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 44632a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 44642a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4465079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4466079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4467079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4468079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4469079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4470079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 44712a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4472079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4473079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4474029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4475029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 44804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 44829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 44869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4516ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4517ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4518ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 45239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 45249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 45474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 45699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 45774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 45788d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 45798d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 45804e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 45818d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4582becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4583becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4584becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 45854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45868d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 45874e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4648a86127fe265896136d2e70273b7623e7c765fe2eMark Lindner // Don't ever focus a disabled item. 4649a86127fe265896136d2e70273b7623e7c765fe2eMark Lindner if (!mAdapter.isEnabled(i)) continue; 4650a86127fe265896136d2e70273b7623e7c765fe2eMark Lindner 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 46864032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46874032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46884032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 46953c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47200785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4723da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4724da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4725da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4726da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4727da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4728da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 47290785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 47300785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 47310785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 47320785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 47330785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 47340785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 47350785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 47360785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47370785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 47380785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 47390785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 47400785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4833079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 483743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 483843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 483943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 484043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 484143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 484243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 484343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 484443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 484543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 484643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 484743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 484843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 484943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 485143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 485343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4858d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 48704df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4871b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 48739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 48749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4877b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 488124443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4884b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49304e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 49314e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 49324e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 49334e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 49344e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 49354e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 49364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 49394e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 49404e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4961b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 497783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 49788d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 49798d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 4980b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 4981b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 4982b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 4983b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 498483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 498583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 498683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 498783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 498883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 498983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4995cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4999b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5004105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5026b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5027b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5028b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5029b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5030c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5031c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5032c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5033c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5034c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 50351bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 50361bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 50371bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 50381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 50391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 50411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 50421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 50431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 50441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 50481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 50491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 50501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 50511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 50521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 50531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 50541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 50551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 50561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 50581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 50601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 50641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 50651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5066c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 50671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 50681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 50701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 50721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 50731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 50741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5075c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5076c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5077b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5079b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5080b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5081b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5082b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5083b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5084b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5085b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5086b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50870a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5088b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 50974df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 50984df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5101b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5102b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5103b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5104b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5105b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5106105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5117d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 514924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 515443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 51701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 51711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5174c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 51831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 52011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52595be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 52605be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 52615be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 52625be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 52635be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 526852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 526952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 527052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 527152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 527252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 527352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 527452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 527552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52847b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 530313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 531813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 531913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 532013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 532113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 532213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 532313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 532413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 532513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 532613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 532713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 532813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 532913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 533013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 533113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 533213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 533352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 533413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 533513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 533613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 533713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 533813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 533913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 534013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 534113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 534213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 534313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 534413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 534513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 534613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 534713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 534813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 534913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 535013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 535113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 535213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 535313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 535413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 535513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 535613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 535713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 535813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 535913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 536013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 536152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 536213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 536313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 536413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 536513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 536652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 536713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 536813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 536913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 537013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 537113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 537213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 537313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 538113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5382499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5383499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5384499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5385499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5386499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 53879b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 53889b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 53893ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 53903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 53913ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 53923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 53933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 53943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 53953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 53969b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 53979b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung 53989b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5399499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5400499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5401499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5402499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5403499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5404499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 540516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5406499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5407499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 540816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5409fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5410fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 541116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5412499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 541316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5414499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5415499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5416499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5417499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5418499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5419499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5420fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5421fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5422fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5423fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5424fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5425499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5426499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5427499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5442b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5443b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5444b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5445b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5446b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5447b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5448b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5449b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5450b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5451b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5452b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5453b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5454b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5455b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5456b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5457b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5458b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5459b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5461f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5462f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5463f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5464f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5468f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5469f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5470f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5471f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5472f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5473f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5474f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5476f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5477f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5478f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5479f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5480f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5481f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5482f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5483f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5484f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5485f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5486f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5487f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5488f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5489f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5490f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5491f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5492f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5493f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5494f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5495f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5496f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5497f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5499f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5500f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5501f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5502f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5503f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5510f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5512f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5513f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5515f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5516f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5517f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5518f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5519f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5520f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5522f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5523f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5524f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5525f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5526f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5527f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5537bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 55389bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 55399bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 55409bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 55444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 55454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 55464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 55474df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 55484df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5549bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55504df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 55514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 55520bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 55530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 55540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 55550bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 55560bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 55570bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 55580bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 55590bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5560bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55610bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 55620bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5563079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5564079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5565079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5566079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5567079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5569079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5656f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5657f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5658f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5659f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5660f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5661f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5662f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5663f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5664f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5665f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5666f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5667f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5668f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5669f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5670f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5671f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5672f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5673f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 56740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 56769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 56859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 57179c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 57199c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 57224df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5750079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5754079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5765079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 57759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 57779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5781079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5782079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5784a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5787a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5806a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5809079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5810079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5811079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58159b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 58179b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 58189b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 58199b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5826a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5827079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 587952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 588052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 588152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 588252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 588352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 588452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 588552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 588652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 588752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 588852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 588952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 589052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 589152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 589252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 589352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 589452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 589552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 589652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 589752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5898266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 589952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 590052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 590152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 590252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 590352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 590452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 590552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 590652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 590752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 590852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 590952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5913079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5914079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5915079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5916079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5917079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5918079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5919079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5920079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5921079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5922079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5923079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5924079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5925079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5926079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5927079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5928079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5929079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5930079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5932