AbsListView.java revision 8a78fd4d9572dff95432fcc4ba0e87563415b728
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 40079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 42637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 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 /** 23914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 24314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 264499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2682148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2702148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 284079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 285079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3410211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4650b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 474637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 47614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 47714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 47814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 47914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 48014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 48114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 48214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4981cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4991cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5001cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5011cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5021cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 527d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 528d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 529d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 530d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 531d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 558d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 560d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5656dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5666dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5674296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5684296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 56921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 57121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 57324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 57424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 57524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 60589935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61089935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 632da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 633da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 634da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 635da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 636da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 63707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 63807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 63907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 6404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6414e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6424e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 643da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 644b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 645b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 646a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 647b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 648b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 649ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 650ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 651ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 652ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 653ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 702e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 703e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 704e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 705e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 706e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 707e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 708e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 709e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 710e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 711e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 712e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 713e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 714e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 715e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 716e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 717e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7620a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7684e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 769f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 77020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 77120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 772f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 776d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 777d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 778df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 779d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 780d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 781d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 782d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 783d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7844296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7854296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7864296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7874296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 791d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 792d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7930a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7984e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 79989935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 80089935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 801637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 81714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 91214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 95914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 99114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1010bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 102114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1034bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 104314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1056bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1057bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1058bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 109214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1100f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11232bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11242bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11264ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11274ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11310a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 117120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 117820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 117920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 118020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 118120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 118220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 118320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 118420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 118520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 118620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 119016bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12340a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12380a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1280a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 12814e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 12824e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 12834e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 12844e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 12854e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1286d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1287d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1288d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1289d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 12904e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 12914e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1292d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1293d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 12944e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12954e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12964e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 12974e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 12984e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 12998a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13008a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13018a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13028a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13038a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13048a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13058a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13068a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13078a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13088a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 13098a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13108a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13756bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1431a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14322614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 143414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1454a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14552614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1456f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 145743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 145843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 145914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 146043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 146143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 146243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 146343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 146414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1465f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1477a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14782614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1479f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 148043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 148143ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 148243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 148343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 148443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 148514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1497f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1517f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 152799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15387becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15397becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15407becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15417becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15427becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15437becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15447becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15457becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15467becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15477becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 155099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 155199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 155299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 155399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 155499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 155599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1574a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1575a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15769a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 15779a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 15789a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15799a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 158014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 15819a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 15829a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 15839a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 15849a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15859a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 15869a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 15872614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1588f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1611079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1621f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1622f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1623f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1624f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1625f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1626f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1627f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1628f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16292614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16302614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1631a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1632a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1633a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1634a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1635a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1640d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1641d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1687b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1688b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1689b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1690b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1691b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1692b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1693b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1718079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17830b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17840b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17850b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17900b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17910b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17920b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17930b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1842da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1843da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1844da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1845da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1846ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1847da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1848da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1849ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1850da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1851da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1854d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1856d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1857d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1862f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1863f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1864f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1865f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1866f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1867f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1868f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 18692c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18702c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18712c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18722c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1873f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1876637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1877637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1887d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1888d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1889d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1890d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1891d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1892d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1893d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1894d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1900d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1901d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1902d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 200521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 200621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 201021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 201121875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2031079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 203921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2040a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2041a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2057079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2058079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2059079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2060079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2061079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2064e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2065e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2066e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2073a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2074079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2075079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 211620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 211720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 211820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 211920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 212020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 212120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 212220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 212320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 212420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 212520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 212620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 212720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 212820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 212920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 213020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 213120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 213220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 213320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 213420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 213520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 213620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 213720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 213820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 213920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 214020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2146d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2179079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 22019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 22059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 22079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 22089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 22169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2223079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2241df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2242df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2243df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2244df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2248079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 22499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2252ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2253ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2254ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2255ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2262df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2263df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2284079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2285079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2286079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2287079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2288079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2289079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2290079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2291079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2292079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2339e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2340e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2341e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2342e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2343e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2344e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23490e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 23500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 23510e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 235482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 235582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 235682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 23576a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 23586a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 23596a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 23606a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 23616a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 236282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2363b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23701f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23711f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23721f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 237321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 237421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 237521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23770e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23780e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23790e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23800e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 238282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 238382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 238482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 238582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 238682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23871cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23881cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2397d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2398d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2399d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2400d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2401d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2402d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 24034032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2404d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2405d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2406d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2407d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2408d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2409d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2410d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2411d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2412d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2413d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2414d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2415d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2416d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2417d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2418b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2429670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2430670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2431670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2432670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2433670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 24344032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 24354032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 24364032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 24390fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2443670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 245297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2516005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2517005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2518005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2519005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2520005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 25217890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 25227890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 25237890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 25247890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 25257890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 25267890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 25729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25778350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2579f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2580f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 25811e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 25821e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 25841e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2585f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2586f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2587f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2609fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2610fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2611fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2612fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2613fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2614fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2615fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2616fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2617fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2618fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2619fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2620fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2621fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2622fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2623fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2648df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2649df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2650df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2651df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2652df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2657dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2658dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2659dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2660df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2661dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2663dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 266545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 266645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 266745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 266845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2672dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2739079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2740079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2741e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27670a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 277478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 277778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 278278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 278378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 278478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 278578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 278678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 278778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 278878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 280413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 280513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 280613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 280713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 280878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 281578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 281678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 281778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 281878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 281978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 282078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 282178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 282278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 282378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 282478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 282578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 282678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 282778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 282878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 282978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 283078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 283178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 283278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 283378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 283478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 283578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 283678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 283778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 283878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 283978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 284078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 284178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 284278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 284378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 284478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 284578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 284678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 284778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 284878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 284978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 285078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 285178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 285278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 285378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 285478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 285578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 285678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 285778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 285878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 285978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 286078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 286178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 286278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 286378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 286478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 286578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 286678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 286778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 286878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 286978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 287078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 287178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 287278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 287378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 287478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 287578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 287678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 287778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 287878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 287978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 288078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 288178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 288278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 288378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 288578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 288678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 288778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 288878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 288978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 289078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 289178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 289278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 289378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 289478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 289578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 289678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 289778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 289878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 289978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 290078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 290178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 290678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 290778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 290978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 291178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 291278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 291378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 291478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 291578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 291678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 291778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 291878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 292078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 292178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 292378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 292478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 292578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 292678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 293478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 293578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 293678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 293778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 293878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 293978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 294178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 294278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 294378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 294478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidate(); 294778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 295078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 295178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 295278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollY = 0; 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown invalidateParentIfNeeded(); 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 296678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 296778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 297378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29901e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 29974032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 29984032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 29994032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 30030fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3004637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3005637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3006637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3007637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3013dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3014dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3015dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3016dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3017dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3018dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 302582f3495b146b267f3786997752cef25310176349Romain Guy 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 30279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 30299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 303013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 30319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3037637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 30384032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 30394032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 30404032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3041637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3042044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3043637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3044637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3045637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3046044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3047637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3048637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3052637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 30580a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 30590a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 30600a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3070637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30769d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 307779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 30789d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3086637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3087637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3091fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3092fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3093fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3094fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3095fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3096fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 31012585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 31022585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 31032585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 31042585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 31052585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 31149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 31299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3130498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3131498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3132498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3133498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3134498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 31409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 31419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 31449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 31459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 31469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 31489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 31509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 31519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 31529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 31539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 31549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3156005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3157005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 31589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 31599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3161079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 31629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 31639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 31679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3169d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3170d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3171d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3172d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3173d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3175079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 31769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3179d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3182d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3183d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3184d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3185005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3186005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3187079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3190005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3191d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3195079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 31986198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 31996198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 32056198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3206637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 32076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 32086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 32106198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 32116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 321321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 321421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3221637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3222637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3223637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 32246198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 32256198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 32266198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32276198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 32284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32296198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3230f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3231f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3232f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3233d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3234d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3235d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 32364032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32374032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32384032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 32396198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 324579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3251637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3255637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32660a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 32729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 32739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 328013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 32814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 32869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 32879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 32889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 32911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 32921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 32931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 32941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 32959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3312637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3313637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3314637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 332513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33324cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 33374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 33384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 33394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 33404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 33414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 33424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 33434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 33454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 33464cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 33474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 33484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 33499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33509bc30d31322848d61f518c1db43544988faaba8fAdam Powell 33519bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 33529bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 33539bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 33549bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 33559bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 33569bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 33579bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 33589bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 33599bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 33609bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 33619bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 33629bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 33639bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 33649bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33659bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 33669bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 33679bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33689bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 33699bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 33709bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33750a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 33780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 33790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 33800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 33810a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 33820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 33830a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 338833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 338933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 339033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 339133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 339233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 339333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 339433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 339533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3396275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 339733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 339833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 339933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 340533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 340633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 340733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 34099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 341407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 341507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 341607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3417637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 341807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 34197d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3420a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3421637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3422637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3423637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3424637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3425637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3426637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3427637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 342807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 342907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 343007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3432637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 343307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 34347d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3435e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3436a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3437637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3438637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3439637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3440637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3441637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3442637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3448637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3450637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3451637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3452637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3453637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 345707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 345807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 345907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 346007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 346107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 346207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 346307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 346407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 346513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 346613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 346713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 346813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 346913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 347013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 347113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 347213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 347313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 347413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 347513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 347613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 347713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 347813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 347913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 348013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 348113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 348213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 348313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 348413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 348513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 348613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 348713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 348813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 348913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 349013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 349213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 349313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 34949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 34969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 34979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 34980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 35009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 35019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35050a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 350879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 35154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 35164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 35174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 351979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 353113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 353213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 353379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 35344b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 35354b4f40f84e72579417604143e5f42115769649b8Romain Guy } 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 35422585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 35432585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 35442585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 35452585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 35462585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 35474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 354813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 354913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 355078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 355813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 35609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 35614cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 356213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 35649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35664e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 35749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 35774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 35784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 35794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 35804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 35814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 35834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 35844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 35854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 35864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 35884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 35894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 36069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 36099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 36229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 36239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 36249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 36250046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 36329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 36339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 36349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 36359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 36379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 36399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3647d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3648d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3649d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3650d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3652d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3653d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3654d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3655d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3656d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3657d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3658d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3659b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3660b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3661d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3662d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3663d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3664d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3665d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3666b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3667d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3668d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3669d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3670d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3671d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3672d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 367379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3674637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 36759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 367779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 36799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 36809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 36931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 36941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3702637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3704e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3707637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3708637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3709044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3710044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3716637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3719637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37284032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 37294032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 37304032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 37314032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 37324032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3738458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3739458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3740458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3741458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3743458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3746d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 37479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 374979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3750d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 375121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 375221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 375321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3754d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 37555e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 37565e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 37575e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 37585e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 37595e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3760d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3761d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3762d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3763d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 376779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 376879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3769d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 37709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 37714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3772d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3773d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3774d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3775d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3776d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3777637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 37787f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 37797f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 37807f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 37817f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 378279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 378379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 378479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 378579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 37909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 37949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3800637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 38019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3802637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 38089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3811d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3815d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38323cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 38333cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 38343cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3850d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3859637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3860637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3861637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3864044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3865044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3868044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3869044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3870044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3871044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3872044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3873044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3874044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3875044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3876044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3877044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3878044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3879044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3883637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3887637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38924e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 38964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3901e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 39024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 390852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3909e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3910e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 39114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3914458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3916458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 39174032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39184032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3919458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3920458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39224bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 39234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3926458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3930458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3932458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3934458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3935458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3936458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3937458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3938458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3939458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3940458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 39424e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3944458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39454e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 39474032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39484032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3949458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3951458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3952458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 39564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39574bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3958fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3959458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3960458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3961458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3969458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3970458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3971458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3972458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3974fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3984458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3986458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39944e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3995458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 40034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4006e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4007e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4008322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4009322171b333a1c796fcc1428a96ea1d854a3881faErik } 4010322171b333a1c796fcc1428a96ea1d854a3881faErik 4011322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 40124032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40134032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4014e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4015e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4016e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4017e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4018e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4019e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4020e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4021371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 4022371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4023e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40244bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4025e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4026e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4027e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4028e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4029e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4030e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4031e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4032322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 4033e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4034e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4035e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4036371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 40374ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 4038322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 4039322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 4040371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4041234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4042e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4043e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4044e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4048e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4049458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4050371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 4051371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 4052371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 4053371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 4054458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 40564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 40614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40620b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 40630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40640b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4073458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4076029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4078029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40827e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 4083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4090029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 40914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4092029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4093029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4095458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 41087e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4112458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4115458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 41164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4124458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4125458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 41310b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 41320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 41330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4134458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 4135029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 4136458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4137029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4138458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4139458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4140458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 41417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4142458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4143458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4144458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4145458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4147458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4148458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4149458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4150458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4151458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4152458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4153458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4154458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4155458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 41657e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4170458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4171458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4172458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4173458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4177458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4178e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4179234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4180234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4181234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4182234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4183234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4184e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4185371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4186234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4187234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4188e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4189371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4190e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 41914032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4192e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 41934032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 41944032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 41954032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 41964032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 41974032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41984032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 41994032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 42004032252c997be9f5d013054dc23ace855007b3a5Adam Powell 42014032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 42024032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 42034032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4204e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4205e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 42064032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4207e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4208e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4209e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4210e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4211234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4212234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4213234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4214e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4215e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4216e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4217e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 42254bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 42264bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 42274e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 42284bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 42294bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 42304bede9e425875542976a422222510fa4056a8339Romain Guy */ 42314bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 42324bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 42334bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 42344bede9e425875542976a422222510fa4056a8339Romain Guy } 42354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 42364bede9e425875542976a422222510fa4056a8339Romain Guy } 423721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 423821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 423921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 424021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 42414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 424221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 424321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 424421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 424521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 424621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 42474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42484bede9e425875542976a422222510fa4056a8339Romain Guy /** 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4252458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4253458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4259322171b333a1c796fcc1428a96ea1d854a3881faErik 4260322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4261322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4262322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4263322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4264322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4265322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4266322171b333a1c796fcc1428a96ea1d854a3881faErik * 4267322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4268322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4269322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4270322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4271322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4272322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4273322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4274322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4275322171b333a1c796fcc1428a96ea1d854a3881faErik } 4276322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4277322171b333a1c796fcc1428a96ea1d854a3881faErik } 4278322171b333a1c796fcc1428a96ea1d854a3881faErik 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4280e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4281e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4282e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4283e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4284e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4285e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4286e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4287e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4288e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4289e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4290e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4291e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4292e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4293e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4294e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4295e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4296e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4297e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4300458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 43014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4305458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4306458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4307458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4309458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4310458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4316458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4317458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4321458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43224032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4323299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 43244032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 43254032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 43264032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 43274032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 43284032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 43294032252c997be9f5d013054dc23ace855007b3a5Adam Powell 433079303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 43314032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 43324032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 43334032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 43344032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 43354032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 43364032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 43374032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 43384032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 43390046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4340299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4341299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4342458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4344499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4345499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4346499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4347499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4348499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4349499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4350499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4351499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4352499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4353499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4354499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4355499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4356499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4357499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4358499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4359499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4360499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4361499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4362499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4363499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4364499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4365499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4366499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4367499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4368499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4369499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4370499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4371499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4372499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4373499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4374499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4375499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4376499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4377499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4378499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4379499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 43809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 43829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 43839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 43840211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 43896dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 43906dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 43916dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 43926dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 43930211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 43946dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 43956dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 43966dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 43976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 43996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 44006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44016dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 44036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 44049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 44069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 44109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 44129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 44139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 44159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 44179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 44239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 44249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 44269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4427bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4428bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4429bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4430bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4431bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4432bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4433bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4434bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4435bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4436bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 44379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4438bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4439bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 44409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 44419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 44479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 44509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 44529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4457637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4459bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4464bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 44690a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 44700a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 44710a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 44720a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 44739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44740a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4475637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 44799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4480029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4481029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4482029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4483029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 44849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 44879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 44928c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 44938c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44948c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 44958c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4500458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4501458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4503458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4504079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45158c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 45168c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 45178c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 45188c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4522458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4528079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4530458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4532458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4533458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4539458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4546458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4547458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4550458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4551458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4553458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4555458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4556458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4557458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 45589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4559458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4560029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 45612a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 45622a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4563079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4564079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4565079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4566079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4567079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4568079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 45692a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4570079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4571079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4572029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4573029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4574458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4575458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4576458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4577458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 45784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4579458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 45849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 45859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 45879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 45899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 45909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4614ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4615ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4616ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 46454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4651637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4657637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4658637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4659637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4661637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4665637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46744e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 46754e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 46768d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 46778d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 46784e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 46798d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4680becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4681becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4682becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 46834e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 46848d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 46854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 46899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 46909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 46919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 47269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 47279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 47319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 47339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 47349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 47359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 47379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 47389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 47409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 47419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 47429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 47814032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47824032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47834032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 47903c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 480114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 480214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 480314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 480414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 480514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 480614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 480714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 480814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 480914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 481014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 481114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 481214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 481314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 481414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 481514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 481614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 481714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 481814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 481914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 482014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 482114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 482214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 482314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 482414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 482514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 482614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 482714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 482814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 482914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 483014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 483114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 483214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 483314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 483414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 483514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 483614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 483714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 483814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 483914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 484014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 484114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 484214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 484314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 484414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 484514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 48469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 48479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 48489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 4849ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 4850ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 485214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 485314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 485414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 485614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 485714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48650785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4868da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4869da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4870da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4871da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4872da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4873da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 48740785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 4875ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 48760785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 48770785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 4878ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 4879ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 48800785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 48810785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 48820785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 48830785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 48840785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 48850785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 48860785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4979079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 498343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 498443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 498543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 498643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 498743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 498843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 498943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 499043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 499143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 499243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 499343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 499443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 499543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 499643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 499743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 499824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 499943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 500043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5004d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 50164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5017b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5023b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 502724443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 50299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5030b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 50319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 50329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 50339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 50359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 50459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 50469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 50499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 50509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 50519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 50529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 50774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 50784e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 50794e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 50804e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 50814e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 50824e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 50854e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 50864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5107b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 512383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 51248d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 51258d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5126b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5127b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5128b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5129b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 513083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 513183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 513283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 513383fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 513483fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 513583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5141cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5145b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5150105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5172b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5173b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5174b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5175b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5176c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5177c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5178c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5179c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5180c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 51811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 51821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 51831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 51841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 51851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 51861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 51871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 51881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 51891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 51901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 51911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 51921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 51931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 51941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 51951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 51961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 51971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 51981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 51991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 52001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 52011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 52021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 52041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 52061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52071bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 52081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 52091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 52101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 52111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5212c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 52131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 52141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 52161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 52171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 52181bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 52191bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 52201bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5221c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5222c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5223b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 52240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5225b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5226b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5227b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5228b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5229b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5230b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5231b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5232b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 52330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5234b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 52434df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 52444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5247b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5248b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5249b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5250b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5251b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5252105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5263d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 529524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 530043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 53091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 53161bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 53171bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5320c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 53291bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 53471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 53679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 53719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 53729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 53769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 53929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 53939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 53999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 54055be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 54065be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 54075be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 54085be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 54095be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 541452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 541552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 541652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 541752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 541852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 541952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 542052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 542152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54307b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 544913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 546413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 546513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 546613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 546713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 546813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 546913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 547013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 547113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 547213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 547313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 547413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 547513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 547613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 547713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 547813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 547952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 548013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 548113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 548213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 548313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 548413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 548513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 548613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 548713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 548813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 548913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 549013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 549113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 549213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 549313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 549413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 549513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 549613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 549713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 549813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 549913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 550013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 550113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 550213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 550313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 550413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 550513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 550613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 550752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 550813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 550913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 551113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 551252964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 551313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 551413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 551713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 551813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 551913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5520637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5522637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5523637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5524637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 552713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5528499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5529499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5530499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 55339b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 55349b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 55353ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 55363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 55373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 55383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 55393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 55403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 55413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 55429b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 55432148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 55449b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5545499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5546499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5547499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5548499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 55492148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 55502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 55512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 55522148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 55532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 55542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 55552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 55562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5557499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5558499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 555916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5560499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5561499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 55622148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 55632148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 55642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 55652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 556616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5567fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5568fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 556916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5570499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 557116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5572499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5573499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5574499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5575499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5576499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5577499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5578fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5579fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5580fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5581fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5582fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5583499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5584499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5585499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5600b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5601b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5602b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5603b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5604b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5605b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5606b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5607b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5608b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5609b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5610b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5611b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5612b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5613b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5614b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5615b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5616b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5617b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5619f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5620f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5621f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5622f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5623f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5624f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5625f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5626f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5627f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5628f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5629f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5631f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5632f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5633f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5634f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5635f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5636f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5637f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5638f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5639f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5640f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5641f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5642f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5643f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5644f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5645f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5646f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5647f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5648f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5651f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5652f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5654f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5655f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5658f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5660f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5661f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5662f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5671f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5672f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5673f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5674f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5675f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5676f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5677f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5678f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5679f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5680f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5681f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5682f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5683f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5684f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5685f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5686f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5687f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5695bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 56969bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 56979bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 56989bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 57024df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 57034df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 57044df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 57054df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 57064df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5707bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 57084df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 57094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 57100bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 57110bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 57120bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 57130bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 57140bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 57150bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 57160bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 57170bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5718bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 57190bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 57200bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5721079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5722079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5723079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5724079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5725079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5726079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 57379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 57909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5814f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5815f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5816f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5817f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5818f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5819f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5820f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5821f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5822f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5823f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5824f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5825f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5826f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5827f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5828f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5829f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5830f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5831f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 58320a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 58759c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 58779c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 58804df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 58949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 58959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 58969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 58979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 58989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 59079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5908079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 59099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5912079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 59139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 59169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 59209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 59229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5923079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 59249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 59339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 59349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 59359b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5939079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 59419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5942a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 59439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5945a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5964a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5967079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5968079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5969079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59739b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 59759b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 59769b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 59779b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5984a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5985079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 60169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 60179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 60189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 603752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 603852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 603952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 604052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 604152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 604252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 604352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 604452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 604552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 604652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 604752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 604852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 604952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 605052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 605152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 605252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 605352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 605452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 605552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6056266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 605752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 605852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 605952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 606052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 606152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 606252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 606352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 606452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 606552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 606652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 606752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 606852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 606952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6071079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6072079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6073079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6074079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6075079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6076079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6077079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6078079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6079079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6080079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6081079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6083079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6084079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6085079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6086079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6087079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6088079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6090