AbsListView.java revision 2148d43eb23c702e834c93ae427f822f32d280a2
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 23637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.content.res.Resources; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 40f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 41079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 42f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 43637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 50f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 58a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 61b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 62b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 70d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 71d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 72d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 83f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 87499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 88499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we just received the touch event and we are waiting to see if the it is a tap or a 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1384e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1430a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 193f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 194f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 195f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 196f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 197f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 198f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which IDs are currently checked 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> mCheckedIdStates; 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 2642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2672148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2682148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 279079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 2969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3390211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 3914e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 395458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private PositionScroller mPositionScroller; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4624e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4630b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 470637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 471637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 472637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 473637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 4819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 4839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 4849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 4869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 4879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4891cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 4901cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 4911cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 4921cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 4931cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 4941cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 4951cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 4961cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 4971cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5060a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 518d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 519d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 520d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 521d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 522d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 549d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 551d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5566dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5576dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5584296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5594296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 56021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 56424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 56524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 56624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5674e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 581637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 582637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 583637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 584637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 587637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 588637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 589637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 590637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 591637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 592637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 593637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 594637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 595637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 596637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowTop; 597637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 598637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private EdgeGlow mEdgeGlowBottom; 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 623da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 624da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 625da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 626da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 627da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 62807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 62907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 63007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 631da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 6329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 6639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 6649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 6669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 6699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 680e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 681e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 682e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 683e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 684e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 685e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 686e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 687e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 688e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 689e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 690e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 691e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 692e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 693e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 694e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 695e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7400a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 747f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 74820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 74920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 750f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 754d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 755d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 756df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 759d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 760d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 761d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 7624296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 7634296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 7644296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 7654296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 769d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 770d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 7710a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 7764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 7774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira final Resources res = context.getResources(); 778637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable edge = res.getDrawable(R.drawable.overscroll_edge); 779637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Drawable glow = res.getDrawable(R.drawable.overscroll_glow); 7804e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowTop = new EdgeGlow(context, edge, glow); 7814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mEdgeGlowBottom = new EdgeGlow(context, edge, glow); 782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 783637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 790d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 791f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 792f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 793f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 794f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 795f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 796f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter.hasStableIds() && 797f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 798f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 799f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 800f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 805f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 807f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 811f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 813f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 814f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 815f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 816f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 817f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 818f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 819f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 820f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 821f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 822f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 823f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 824f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 825f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final LongSparseArray<Boolean> idStates = mCheckedIdStates; 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 991bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1015bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), Boolean.TRUE); 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1037bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1038bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1039bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = new LongSparseArray<Boolean>(); 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1076f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1084f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1090f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1093f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1094f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1095f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1098f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1099f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1102637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11042bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11052bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11074ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11084ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11130a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 113520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 113620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 113720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 113820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 113920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 114020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 114120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 114220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 114320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 114420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 114520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 114620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 114720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 114820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 114920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 115120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 115220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 115520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 115620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 115720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 115820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 115920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 116020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 116120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 116220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 116320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 116420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 116520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 116620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 116720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 116820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 116920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 117020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 117116bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 117220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 117320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 117520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 117620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 117720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11860a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 118720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 118820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 118920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 119020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 119120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 119220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 119420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 11969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 11970a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 11989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 12509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 12529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12580a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1261a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1262a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 1263a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 1264a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov info.setScrollable(true); 1265a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1266a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1267a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1268a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 1269a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 1270a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setScrollable(true); 1271a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1272a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setFromIndex(mFirstPosition); 1273a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setToIndex(mFirstPosition + getChildCount()); 1274a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov event.setItemCount(mItemCount); 1275a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1276a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1277a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 1278a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 1279a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov public boolean dispatchPopulateAccessibilityEvent(AccessibilityEvent event) { 1280a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // Do not append text content to scroll events they are fired frequently 1281a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov // and the client has already received another event type with the text. 1282a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov if (event.getEventType() != AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1283a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov super.dispatchPopulateAccessibilityEvent(event); 1284a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1285a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov return false; 1286a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov } 1287a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 13469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 13479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 13509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 13519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 13526bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1408a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14092614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1410f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 1411f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell LongSparseArray<Boolean> checkIdState; 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1431a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14322614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1433f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 1434f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell long[] idState = in.createLongArray(); 1435f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1436f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (idState.length > 0) { 1437f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState = new LongSparseArray<Boolean>(); 1438f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkIdState.setValues(idState, Boolean.TRUE); 1439f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1451a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 14522614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1453f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 1454f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeLongArray(checkIdState != null ? checkIdState.getKeys() : new long[0]); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1466f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1467f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1486f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 149699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15077becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15087becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15097becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15107becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15117becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15127becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15137becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15147becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15157becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15167becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 151999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 152099441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 152199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 152299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 152399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 152499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 15279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1543a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1544a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 1545f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkState = mCheckStates; 1546f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ss.checkIdState = mCheckedIdStates; 15472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1548f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1571079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 15809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1581f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1582f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1583f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1584f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1585f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1586f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1587f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1588f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 15892614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 15902614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1591a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1592a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1593a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1594a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1595a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1600d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1601d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16070a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 16239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 16259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 16269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 16279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 16289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16330a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16420a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 16539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 16639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 16649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 16659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 16669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1671079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17150b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 17160b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 17299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 17360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 17370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 17380b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1740637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1742637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 17430b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 17440b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 17450b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 17460b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1795da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1796da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1797da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1798da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1799da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int listBottom = getBottom() - getPaddingBottom(); 1800da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1801da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1802da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mOldItemCount && 1803da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1804da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1810d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1815f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1816f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1817f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1818f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1819f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1820f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1821f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 18222c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 18232c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 18242c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 18252c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1826f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 18319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1840d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1841d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1842d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1843d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1844d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1845d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1846d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1847d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1853d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1854d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1855d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 19129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 195821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 195921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 19604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 196321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 196421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 1984079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 199221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 1993a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 1994a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2010079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2011079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2012079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2013079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2014079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2017e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2018e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2019e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2026a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2027079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2028079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 206920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 207020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 207120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 207220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 207320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 207420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 207520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 207620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 207720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 207820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 207920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 208020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 208120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 208220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 208320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 208420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 208520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 208620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 208720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 208820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 208920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 209020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 209120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 209220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 209320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2099d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 21299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2132079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 21349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 21359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 21369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 21449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 21459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2176079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 21869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 21879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 21919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2194df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2195df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2196df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2197df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 21989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 21999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 22009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2201079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 22029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 22049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2205ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2206ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2207ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2208ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 22099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 22109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2215df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2216df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2236079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2237079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2238079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2239079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2240079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2241079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2242079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2244079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2245079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22820a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2292e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2293e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2294e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2295e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2296e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2297e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23020e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 23030e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 23040e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 230782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 230882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 230982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 23106a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 23116a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 23126a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 23136a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 23146a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 231582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23221f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 23231f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 23241f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 232521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 232621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 232721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 23290e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 23300e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 23310e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeGlobalOnLayoutListener(this); 23320e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 233482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 233582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 233682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 233782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 233882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 23391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23401cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 23411cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 23421cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 23431cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 23441cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 23451cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 23461cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 23471cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 23481cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2349d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2350d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2351d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2352d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2353d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2354d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 23554032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2356d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2357d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2358d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2359d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2360d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2361d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2362d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2363d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2364d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2365d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2366d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2367d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2368d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2369d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2380670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2381670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2382670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2383670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2384670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 23854032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 23864032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 23874032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2388458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2389458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 23900fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2392458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2394670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 240397566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 24490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24530a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 24649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 24659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 24669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2467005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2468005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2469005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2470005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2471005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 24727890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 24737890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 24747890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 24757890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 24767890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 24777890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 24789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 24859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 24869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 24910a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25040a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 25069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 25089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 25099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 25109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 25129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25288350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2531f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 2532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode == null) { 2533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 2534f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 2535f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2536f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // TODO Should we select the long pressed item if we were already in 2537f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selection mode? (i.e. treat it like an item click?) 2538f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2562fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2563fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2564fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2565fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2566fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2567fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2568fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2569fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2570fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2571fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2572fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2573fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2574fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2575fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2576fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 25779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 25869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 25939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 25969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2601df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2602df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2603df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2604df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2605df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2610dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2611dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2612dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2613df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2614dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2616dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 261845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 261945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 262045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 262145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2625dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 26529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 26539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 26549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 26559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 26569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 26579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2692079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2693079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2694e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27200a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 27219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean startScrollIfNeeded(int deltaY) { 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 27309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 2734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = overscroll ? TOUCH_MODE_OVERSCROLL : TOUCH_MODE_SCROLL; 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionCorrection = deltaY; 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 27429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestDisallowInterceptTouchEvent(true); 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27701e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 2771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2772637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 2773637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 2774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 2775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 2776637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27774032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 27784032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 27794032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2780637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2781637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 2782637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 27830fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2784637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2785637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 2786637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2787637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 2793dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2794dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 2795dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 2796dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 2797dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2798dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28030a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 280582f3495b146b267f3786997752cef25310176349Romain Guy 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 28099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY; 28109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker == null) { 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = VelocityTracker.obtain(); 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 2818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 2819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 2820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 28214032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 28224032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 28234032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2825044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 2826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 2827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2829044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 2830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 2834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 2835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 2836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 2837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 2838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 2839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 2840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 28410a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 28420a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 28430a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 2844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 2845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 2846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 2847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 2848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 2852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 2853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 2854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 2855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 2856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 2857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 2858637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28599d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 286079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 28619d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 2862637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 2863637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 2864637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 2865637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 2866637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2867637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 2868637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 2869637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 2870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 2871637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 2872637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2874fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 2875fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 2876fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 2877fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 2878fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2879fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 28842585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 28852585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 28862585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 28872585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 28882585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 28894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 28909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = y - mMotionY; 28919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 28959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project startScrollIfNeeded(deltaY); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mScrollProfilingStarted) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewScroll"); 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = true; 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29071cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan == null) { 29081cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick // If it's non-null, we're already in a scroll. 29091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 29101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 29111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (y != mLastY) { 2913110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // We may be here after stopping a fling and continuing to scroll. 2914110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // If so, we haven't disallowed intercepting touch events yet. 2915110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell // Make sure that we do so in case we're in a parent that can intercept. 2916110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 2917110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell Math.abs(deltaY) > mTouchSlop) { 2918110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell requestDisallowInterceptTouchEvent(true); 2919110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell } 2920110486f932510fb49bfeff978b0b0e0237ee0656Adam Powell 2921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY -= mMotionCorrection; 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2924a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 2925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionIndex; 2926637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mMotionPosition >= 0) { 2927637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = mMotionPosition - mFirstPosition; 2928637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 2929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // If we don't have a motion position that we can reliably track, 2930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // pick something in the middle to make a best guess at things below. 2931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionIndex = getChildCount() / 2; 2932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionViewPrevTop = 0; 2935637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(motionIndex); 2936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionViewPrevTop = motionView.getTop(); 2938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 29406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy // No need to do all this work if we're not going to move anyway 2941458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean atEdge = false; 29426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (incrementalDeltaY != 0) { 2943458034799861fef47e00d85d528b4dac5e00bd51Adam Powell atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 29446198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check to see if we have bumped into the scroll limit 2947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView = this.getChildAt(motionIndex); 2948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 2949637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check if the top of the motion view is where it is 2950637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // supposed to be 2951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionViewRealTop = motionView.getTop(); 2952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEdge) { 2953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Apply overscroll 2954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overscroll = -incrementalDeltaY - 2956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (motionViewRealTop - motionViewPrevTop); 2957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 2958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 2959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 2960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't allow overfling if we're at the edge. 2961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.clear(); 2962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2964637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 2965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 2966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 2967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 2968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = 0; // Reset when entering overscroll. 2969637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 2970637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 2971637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onPull((float) overscroll / getHeight()); 2972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 2973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 2974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 2976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 2977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 2978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 2979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 2981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 298279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 2983b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell mMotionY = y; 2984b7795432a5512080fae2a0aa123c02b222f7bca6Adam Powell invalidate(); 298579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 298679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell mLastY = y; 298779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 298879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 2989637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2990637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 2991637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (y != mLastY) { 2992637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int rawDeltaY = deltaY; 2993637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell deltaY -= mMotionCorrection; 2994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 2995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 2996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int oldScroll = mScrollY; 2997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int newScroll = oldScroll - incrementalDeltaY; 2998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int newDirection = y > mLastY ? 1 : -1; 2999637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3000637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mDirection == 0) { 3001637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3004044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int overScrollDistance = -incrementalDeltaY; 3005044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 3006044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell overScrollDistance = -oldScroll; 3007044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell incrementalDeltaY += overScrollDistance; 3008637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3009044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell incrementalDeltaY = 0; 3010044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3011044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3012044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (overScrollDistance != 0) { 3013044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 3014637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverscrollDistance, true); 3015637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3016637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3017637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 3018637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !contentFits())) { 3019637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (rawDeltaY > 0) { 3020044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 3021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else if (rawDeltaY < 0) { 3025044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 3026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3032044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3033044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3034044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (incrementalDeltaY != 0) { 3035044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Coming back to 'real' list scrolling 3036044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScrollY = 0; 3037044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell invalidateParentIfNeeded(); 3038044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3039044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // No need to do all this work if we're not going to move anyway 3040044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (incrementalDeltaY != 0) { 3041044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 3042637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3043044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3044044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mTouchMode = TOUCH_MODE_SCROLL; 3045044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3046044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // We did not scroll the full amount. Treat this essentially like the 3047044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // start of a new touch scroll 3048044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int motionPosition = findClosestMotionRow(y); 3049044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3050044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionCorrection = 0; 3051044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell View motionView = getChildAt(motionPosition - mFirstPosition); 3052044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 3053044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionY = y; 3054044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionPosition = motionPosition; 3055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3056637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = y; 3057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mDirection = newDirection; 3058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 30639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 30669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 30679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 30689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 30699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 30709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 30719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3072498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3073498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3074498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3075498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3076498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 30779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 30789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 30869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 30879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 30889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 30909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 30929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3098005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3099005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 31009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3103079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 31059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 31086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3111d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3112d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3113d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3114d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3115d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 31169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3117079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 31189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 31199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 31209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3121d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3124d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3125d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3126d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3127005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3128005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3129079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3132005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3133d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 31349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3137079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 31389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 31406198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 31416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 31476198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 31496198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 31506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 31526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 31536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 315521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 315621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3165637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 31666198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 31676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 31686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 31704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 31716198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3172f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3173f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3174f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3175d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3176d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3177d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 31784032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31794032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31804032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 31816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 31829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 31849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 31859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 31869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 318779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3188637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3190637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3191637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3195637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3196637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3197637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3199637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3201637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3202637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3203637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3204637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32080a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3209637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3210637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3211637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3212637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3213637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 32149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 32159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 32160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mVelocityTracker != null) { 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.recycle(); 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker = null; 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 32361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 32371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 32381cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 32391cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3244637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3245637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3246637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3247637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3248637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3249637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3250637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3252637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3253637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3254637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3256637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3257637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3258637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3259637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3260637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3261637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3262637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3263637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3264637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3265637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3266637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3267637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3268637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3269637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3270637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mVelocityTracker != null) { 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker.recycle(); 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mVelocityTracker = null; 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3276637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3278637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 32814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 32844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 32854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 32864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 32874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 32884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 32894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 32904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 32914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 32924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 32934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 32944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 32954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 32964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 32979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32989bc30d31322848d61f518c1db43544988faaba8fAdam Powell 32999bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 33009bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 33019bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 33029bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 33039bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 33049bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 33059bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 33069bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 33079bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 33089bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 33099bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 33109bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 33119bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 33129bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 33139bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 33149bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 33159bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33169bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 33179bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 33189bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 33199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 33250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 33260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 33270a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 33280a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 33290a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 33300a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 33310a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 333633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 333733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 333833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 333933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 334033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 334133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 334233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 334333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3344275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 334533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 334633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 334733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 334833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 334933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 335333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 335433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 335533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 33569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3358637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3360637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 336207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 336307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 336407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 336607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(leftPadding, 33677d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.min(0, scrollY + mFirstPositionDistanceGuess)); 3368a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 3370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3372637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 337607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 337707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 337807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 338107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell canvas.translate(-width + leftPadding, 33827d86378b0c3a02499a5a9aab35851424ffa57bd8Adam Powell Math.max(height, scrollY + mLastPositionDistanceGuess)); 3383e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3384a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3388637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3392637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 340507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 340607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 340707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 340807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 340907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 341007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 341107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 341207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 34139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 34159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 34169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 34170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 34269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 342779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3428637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3429637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3430637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3431637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34334cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 34344cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 34354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 34364e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 343879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 34419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 34429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 34439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 34449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 34459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 34469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 34479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 34489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 345079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 34514b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 34524b4f40f84e72579417604143e5f42115769649b8Romain Guy } 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 34579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 34592585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 34602585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 34612585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 34622585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 34632585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 34644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 34659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (startScrollIfNeeded(y - mMotionY)) { 34669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 34749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34794e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34884e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 34904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 34914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 34924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 34934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 34944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 34954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 34964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 34974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 34984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 34994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 35014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 35024cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35034cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 35109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 35119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 35129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 35139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 35249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 35339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 35359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 35369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 35379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 35380046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 35459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 35469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 35479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 35489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 35509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 35529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3553637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 35549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 35569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 35579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 35589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 35599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3560d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3561d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3562d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3563d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3565d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3566d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3567d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3568d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3569d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3570d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3571d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3572d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (scroller.isScrollingInDirection(0, yvel)) { 3573d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3574d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3575d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3576d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3577d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3578b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3579d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3580d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3581d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3582d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3583d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3584d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 358579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3586637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 35879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 358979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 35959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project post(this); 35969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 35989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 35999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 36009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 36019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36031cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 36041cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 36051cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 36061cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 36079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3608458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3616e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 3621044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3622044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36404032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 36414032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 36424032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 36434032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 36444032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3646637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3650458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void startScroll(int distance, int duration) { 3651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3652458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 3653458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3654458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 3655458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3656458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3657458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3658d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 36599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 366179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3662d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 366321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 366421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 366521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3666d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 36675e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 36685e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 36695e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 36705e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 36715e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3672d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3673d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3674d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3675d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 36769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 367979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 368079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3681d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3684d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3685d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3686d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3687d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3688d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 369079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 369179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 369279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 369379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3701637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3703637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3704637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3705637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3706637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3707637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3708637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3710637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3711637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3712637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3713637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3714637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3715637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3717637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3718637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3719d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3720637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3723d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3728637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3729637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3731637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 3732637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean atEnd = trackMotionScroll(delta, delta) && (delta != 0); 3733637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3734637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3735637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3736637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3737637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3738637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3739637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37403cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 37413cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 37423cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3743637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3744637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3745637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3746637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 3747637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3748637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 3749637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3750637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3751637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3752637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3753637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3754637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3755637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3756637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3757637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3758d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3759637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3760637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3761637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3762637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3765637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3766637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3767637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3772044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3773044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3774637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3775637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3776044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3777044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3778044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3779044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3780044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3781044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3782044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3783044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3784044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3785044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3786044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3787044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell post(this); 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3792637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3795637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38014e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3802458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3803458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int SCROLL_DURATION = 400; 38044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3805458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3806458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3807458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3808458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3809e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 38104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3811458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3812458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3813458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3814458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 3815458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 381652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 3817e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3818e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 38194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3820458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 3821458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 3822458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3824458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position) { 38254032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38264032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3827458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3828458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38304bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 38314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (position <= firstPos) { 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 3833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else if (position >= lastPos) { 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 3836458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3839458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3840458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38414e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3842458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3843458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3844458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3845458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3846458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3847458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3848458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 3849458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 38504e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3851458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3852458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38534e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void start(int position, int boundPosition) { 38554032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 38564032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3857458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 3858458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 3859458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3860458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3862458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 3863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + getChildCount() - 1; 38644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38654bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3866fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell if (position <= firstPos) { 3867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 3868458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 3869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3870458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3871458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 38724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3873458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 3874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 3875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 3878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 3881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3882fee20911e3ec97af64e4ac2c519d75b5f75e2a27Adam Powell } else if (position >= lastPos) { 3883458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 3884458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 3885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 3886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3887458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3888458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3889458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 3890458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 3891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 3892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 3893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 3894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 3896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 3897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Already on screen, nothing to do 3900458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3901458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39024e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3903458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 3904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 3905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 3906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 3907458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 3909458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 3910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 39114e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3912458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3914e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3915e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 3916322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 3917322171b333a1c796fcc1428a96ea1d854a3881faErik } 3918322171b333a1c796fcc1428a96ea1d854a3881faErik 3919322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 39204032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 39214032252c997be9f5d013054dc23ace855007b3a5Adam Powell 3922e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 3923e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 3924e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 3925e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 3926e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 3927e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3928e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 3929371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 3930371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 3931e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 39324bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 3933e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 3934e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 3935e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 3936e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 3937e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 3938e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 3939e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 3940322171b333a1c796fcc1428a96ea1d854a3881faErik smoothScrollBy(targetTop - offset, duration); 3941e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 3942e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3943e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3944371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 39454ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 3946322171b333a1c796fcc1428a96ea1d854a3881faErik mScrollDuration = screenTravelCount < 1 ? (int) (screenTravelCount * duration) : 3947322171b333a1c796fcc1428a96ea1d854a3881faErik (int) (duration / screenTravelCount); 3948371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 3949234a5715309ea74757780aff6123e3144efb5b69Adam Powell 3950e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 3951e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 3952e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3953458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 3954458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 3955458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3956e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 3957458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 3958371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell if (mTouchMode != TOUCH_MODE_FLING && mLastSeenPos != INVALID_POSITION) { 3959371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell return; 3960371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell } 3961371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell 3962458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 3963458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 39644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3965458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 3966458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 3967458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 3968458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 39694e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 39700b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 39710b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 39720b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 3973458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3974458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 3975458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 3976458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3977458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 3978458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3979458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3980458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 3981458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 3982458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 3983458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 3984029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = lastPos < mItemCount - 1 ? mExtraScroll : mListPadding.bottom; 3985458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3986029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(lastViewHeight - lastViewPixelsShowing + extraScroll, 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 3988458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3989458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 39907e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 3994458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 39954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 3998029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 39994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4000029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4001029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4002458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4008458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4009458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4011458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4012458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4013458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4014458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 4015458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int extraScroll = mExtraScroll; 40167e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4017458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 4018458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration); 4019458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4020458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4021458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4022458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4023458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 40244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 4025458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration); 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4027458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4028458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4029458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4033458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4037458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 40390b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 40400b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 40410b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 4043029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int extraScroll = firstPos > 0 ? mExtraScroll : mListPadding.top; 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4045029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration); 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 40497e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 4050458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4052458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4053458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40544e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4055458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4060458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4061458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4062458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4063458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 4064458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4065458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4066458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4067458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4068458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4069458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4070458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4071458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 4072458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 40737e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 4074458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(lastViewPixelsShowing - mExtraScroll), mScrollDuration); 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell post(this); 4076458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4077458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int bottom = listHeight - mExtraScroll; 4078458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4079458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration); 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4085458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4086e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4087234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4088234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 4089234a5715309ea74757780aff6123e3144efb5b69Adam Powell post(this); 4090234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4091234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4092e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4093371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4094234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4095234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4096e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4097371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4098e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 40994032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4100e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 41014032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 41024032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 41034032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 41044032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 41054032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41064032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 41074032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 41084032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41094032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 41104032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 41114032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (-getHeight() * modifier), mScrollDuration); 4112e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4113e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 41144032252c997be9f5d013054dc23ace855007b3a5Adam Powell smoothScrollBy((int) (getHeight() * modifier), mScrollDuration); 4115e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell post(this); 4116e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4117e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4118e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4119234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 4120234a5715309ea74757780aff6123e3144efb5b69Adam Powell smoothScrollBy(distance, 4121234a5715309ea74757780aff6123e3144efb5b69Adam Powell (int) (mScrollDuration * ((float) distance / getHeight()))); 4122e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4123e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4124e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4125e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4127458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4128458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4129458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4130458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41314e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4132458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 41334bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 41344bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 41354e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 41364bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 41374bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 41384bede9e425875542976a422222510fa4056a8339Romain Guy */ 41394bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 41404bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 41414bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 41424bede9e425875542976a422222510fa4056a8339Romain Guy } 41434e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 41444bede9e425875542976a422222510fa4056a8339Romain Guy } 414521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 414621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 414721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 414821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 41494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 415021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 415121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 415221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 415321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 415421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 41554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41564bede9e425875542976a422222510fa4056a8339Romain Guy /** 4157458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4158458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4163458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4164458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4167322171b333a1c796fcc1428a96ea1d854a3881faErik 4168322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4169322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4170322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4171322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4172322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4173322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4174322171b333a1c796fcc1428a96ea1d854a3881faErik * 4175322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4176322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4177322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4178322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4179322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4180322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4181322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4182322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4183322171b333a1c796fcc1428a96ea1d854a3881faErik } 4184322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4185322171b333a1c796fcc1428a96ea1d854a3881faErik } 4186322171b333a1c796fcc1428a96ea1d854a3881faErik 4187458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4188e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4189e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4190e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4191e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4192e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4193e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4194e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4195e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4196e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4197e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4198e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4199e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4200e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4201e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4202e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4203e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4204e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4205e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4206458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 42094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4212458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4218458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4221458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4225458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42304032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4231299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 42324032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 42334032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 42344032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 42354032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 42364032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 42374032252c997be9f5d013054dc23ace855007b3a5Adam Powell 423879303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 42394032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 42404032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 42414032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 42424032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 42434032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 42444032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 42454032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 42464032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 42470046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 4248299acb581205b6574bfa91824b1b887e265c4c40Marc Blank mFlingRunnable.startScroll(distance, duration); 4249299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4250458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4252499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4253499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4254499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4255499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4256499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4257499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4258499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4259499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4260499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4261499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4262499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4263499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4264499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4265499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4266499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4274499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4275499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4276499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4277499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4278499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4279499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4280499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4281499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4282499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4283499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4284499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4285499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4286499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4287499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 42889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 42899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !mCachingStarted) { 42909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 42919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 42920211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 42939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 42959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 42969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 42976dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mClearScrollingCache == null) { 42986dfed24158b8fc9150abee23992db621cd82aa43Romain Guy mClearScrollingCache = new Runnable() { 42996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy public void run() { 43006dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (mCachingStarted) { 43010211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = false; 43026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawnWithCacheEnabled(false); 43036dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 43046dfed24158b8fc9150abee23992db621cd82aa43Romain Guy setChildrenDrawingCacheEnabled(false); 43056dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43066dfed24158b8fc9150abee23992db621cd82aa43Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 43076dfed24158b8fc9150abee23992db621cd82aa43Romain Guy invalidate(); 43086dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43096dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43106dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 43116dfed24158b8fc9150abee23992db621cd82aa43Romain Guy }; 43129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43136dfed24158b8fc9150abee23992db621cd82aa43Romain Guy post(mClearScrollingCache); 43149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 43179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 43189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 43199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 43209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 43219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 43239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 43259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 43269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 43289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 43319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 43329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 43349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4335bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4336bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4337bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4338bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4339bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4340bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4341bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4342bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4343bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4344bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 43459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4346bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4347bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 43489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 43499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 43519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 43529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 43539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 43559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 43589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 43599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 43609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 43619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 43629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4363458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 43649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4365637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4366637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4367bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4368637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4369637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4370637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4371637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4372bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4373637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4374637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4375637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4376637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 43770a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 43780a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 43790a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 43800a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 43819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 43820a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4384458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4386458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 43879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4388029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4389029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4390029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4391029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 43929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4393458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4394458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 43959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4396458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4397458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 43989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 44008c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 44018c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 44038c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4404458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4410458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4411458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4412079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4416458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44238c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 44248c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 44258c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 44268c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4427458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4428458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4436079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4440458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4441458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 44429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4447458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4448458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 44499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 44519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4452458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 44539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4455458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 44569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4457458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4458458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 44629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4465458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 44669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4468029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 44692a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 44702a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4471079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4472079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4473079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4474079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4475079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4476079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 44772a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4478079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4479079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4480029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4481029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4482458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell awakenScrollBars(); 44864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 44889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 44909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 44919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 44929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 44939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 44949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 44959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 44969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 44979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 44989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 44999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 45029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 45039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 45059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 45079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 45089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 45129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 45139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 45149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 45159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 45179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 45199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 45219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4522ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4523ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4524ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 45259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 45269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 45279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 45299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 45309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 45319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 45369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 45379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 45389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 45409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 45419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 45429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 45439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 45459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 45469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 45479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 45519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 45534cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 45549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 45569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4568637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4569637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4570637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 45749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 45759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 45769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 45779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 45789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 45799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 45809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 45819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45824e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 45834e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 45848d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 45858d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 45864e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 45878d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4588becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4589becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4590becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 45914e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45928d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 45934e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 46019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 46039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 46069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 46159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 46169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 46179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 46189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 46199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 46209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 46219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 46239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 46269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 46459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 46469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 46489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 46499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 46509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 46519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 46529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 46559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 46569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 46639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 46659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 46679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 46689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 46699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 46709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 46729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 46759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 46799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 46809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 46819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 46829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 46889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 46894032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 46904032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 46914032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 46929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 46939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 46949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 46959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 46969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 46983c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 47009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 47019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 47039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 47059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 47079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 47109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 47119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 47129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 47139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int newPos; 47159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 47179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 47209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47230785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 47259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 4726da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 4727da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 4728da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 4729da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 4730da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 4731da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 47320785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 47330785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int listBottom = getBottom() - getPaddingBottom(); 47340785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 47350785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 47360785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mFirstPosition + childCount >= mOldItemCount && lastBottom <= listBottom) { 47370785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 47380785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 47390785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47400785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 47410785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 47420785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 47430785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 47449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 47469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 47479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 47489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 47499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 47509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 47529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 47609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 47659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 47669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 47689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 47699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 47709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 48069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 48079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 4836079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 48379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 484043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 484143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 484243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 484343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 484443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 484543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 484643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 484743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 484843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 484943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 485043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 485143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 485243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 485443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 485643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 485743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4861d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 48699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 48719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 48729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 48734df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 4874b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 48759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 48769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 48779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4880b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 488424443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 4887b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49334e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 49344e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 49354e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 49364e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 49374e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 49384e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 49394e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 49424e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 49434e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 4964b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 498083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 49818d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 49828d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 4983b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 4984b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 4985b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 4986b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 498783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 498883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 498983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 499083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 499183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 499283fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 4998cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5002b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5007105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 50219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 50229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 50239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 50269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5029b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5030b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5031b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5032b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5033c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5034c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5035c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5036c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5037c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 50381bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 50391bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 50401bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 50411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 50421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50431bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 50441bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 50451bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 50461bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 50471bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50481bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50491bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50501bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 50511bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 50521bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 50531bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 50541bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 50551bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 50561bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 50571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 50581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 50591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 50611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 50631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 50651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 50661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 50671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 50681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5069c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 50701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 50711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 50731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 50741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 50751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 50761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 50771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5078c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5079c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5080b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50810a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5082b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5083b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5084b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5085b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5086b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5087b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5088b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5089b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 50900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5091b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 51004df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 51014df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5104b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5105b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5106b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5107b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5108b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5109105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5120d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 515224562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 515743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 51661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 51731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 51741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5177c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 51789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 51799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 51809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 51819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 51829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 51839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 51849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 51859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 51861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 51879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 51889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 51909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 51919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 51929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 51939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 51949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 52041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 52119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 52129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52625be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 52635be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 52645be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 52655be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 52665be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 527152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 527252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 527352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 527452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 527552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 527652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 527752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 527852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52877b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 530613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 532113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 532213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 532313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 532413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 532513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 532613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 532713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 532813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 532913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 533013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 533113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 533213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 533313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 533413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 533513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 533652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 533713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 533813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 533913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 534013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 534113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 534213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 534313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 534413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 534513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 534613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 534713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 534813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 534913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 535013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 535113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 535213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 535313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 535413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 535513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 535613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 535713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 535813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 535913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 536013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 536113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 536213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 536313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 536452964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 536513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 536613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 536713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 536813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 536952964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 537013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 537113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 537213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 537313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 537413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 537513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 537613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5377637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5378637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5379637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5380637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 538413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5385499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5386499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5387499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5388499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5389499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 53909b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 53919b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 53923ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 53933ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 53943ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 53953ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 53963ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 53973ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 53983ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 53999b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 54002148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 54019b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5402499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5403499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5404499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5405499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 54062148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 54072148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 54082148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 54092148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 54102148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 54112148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 54122148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 54132148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5414499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5415499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 541616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5417499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5418499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 54192148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 54202148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 54212148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 54222148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 542316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5424fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5425fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 542616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5427499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 542816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5429499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5430499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5431499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5432499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5433499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5434499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5435fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5436fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5437fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5438fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5439fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5440499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5441499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5442499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5457b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5458b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5459b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5460b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5461b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5462b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5463b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5464b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5465b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5466b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5467b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5468b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5469b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5470b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5471b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5472b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5473b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5474b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5476f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5477f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5478f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5479f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5480f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5481f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5482f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5483f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5484f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5485f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5486f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5487f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5488f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5489f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5490f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5491f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5492f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5493f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5494f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5495f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5496f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5497f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5499f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5500f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5501f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5502f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5503f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5504f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5505f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5506f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5508f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5509f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5510f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5511f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5512f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5513f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5514f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5515f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5516f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5517f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5518f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5519f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5520f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5522f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5523f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5524f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5525f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5526f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5527f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5528f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5530f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5531f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5532f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5533f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5534f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5535f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5536f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5537f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5538f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5541f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5542f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5543f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5544f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5552bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 55539bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 55549bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 55559bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 55569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 55579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55584df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 55594df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 55604df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 55614df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 55624df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 55634df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5564bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55654df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 55664df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 55670bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 55680bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 55690bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 55700bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 55710bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 55720bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 55730bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 55740bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5575bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 55760bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 55770bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5578079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5579079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5580079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5581079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5582079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5583079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5584079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 56069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 56079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 56099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 56109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 56209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5671f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 5672f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 5673f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 5674f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5675f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 5676f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 5677f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5678f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 5679f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 5680f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 5681f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 5682f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 5683f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 5684f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 5685f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5686f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5687f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 5688f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 56890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 56919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 56929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 56969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 57229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 57329c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 57349c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 57369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 57374df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 57389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5765079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 5769079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Put a view into the ScapViews list. These views are unordered. 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5780079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 57879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 57889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 57899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!shouldRecycleViewType(viewType)) { 57909b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 57919b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(scrap, false); 57929b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5796079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = position; 5797079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 5799a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 5802a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy scrap.dispatchStartTemporaryDetach(); 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 5821a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 5824079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 5825079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 5826079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58309b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (!shouldRecycleViewType(whichScrap)) { 58319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 58329b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 58339b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 58349b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 58359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5841a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 5842079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 58469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 58479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 58509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 58519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 58529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 58539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 58589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 58629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 58639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 58659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 58669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 58719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 58729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 58739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 58749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 58759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 58819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 58839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 58849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 58859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 58869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 58879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 58889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 58899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 58909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 58919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 589452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 589552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 589652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 589752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 589852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 589952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 590052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 590152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 590252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 590352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 590452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 590552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 590652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 590752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 590852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 590952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 591052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 591152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 591252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 5913266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 591452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 591752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 591852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 591952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 592052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 592152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 592252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 592352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 592452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 592552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 592652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 5928079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5929079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 5930079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 5931079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 5932079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 5933079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 5934079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 5935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 5936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 5937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 5938079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 5939079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5941079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 5942079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 5943079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 5944079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 5945079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 5947