AbsListView.java revision e69370e16852c576890dd70733ad40669fd9367e
19066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/* 29066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Copyright (C) 2006 The Android Open Source Project 39066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Licensed under the Apache License, Version 2.0 (the "License"); 59066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * you may not use this file except in compliance with the License. 69066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * You may obtain a copy of the License at 79066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 89066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * http://www.apache.org/licenses/LICENSE-2.0 99066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unless required by applicable law or agreed to in writing, software 119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * distributed under the License is distributed on an "AS IS" BASIS, 129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * See the License for the specific language governing permissions and 149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * limitations under the License. 159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpackage android.widget; 189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19234a5715309ea74757780aff6123e3144efb5b69Adam Powellimport com.android.internal.R; 20234a5715309ea74757780aff6123e3144efb5b69Adam Powell 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 22499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 321cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3752964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 38f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 39539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 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; 5713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 59a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 60a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityNodeInfo; 610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.Interpolator; 620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powellimport android.view.animation.LinearInterpolator; 631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.BaseInputConnection; 64b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.EditorInfo; 65b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Projectimport android.view.inputmethod.InputConnection; 661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackbornimport android.view.inputmethod.InputConnectionWrapper; 679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.inputmethod.InputMethodManager; 689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 73d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 74d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 75d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 86f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 90499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 91499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 939d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 94539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 95539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1120a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1444e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1490a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 152637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 199f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 200f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 248f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 251f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 267499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 268499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2772148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 292079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 294079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 2989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3520211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 406458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4270a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4754e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4760b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 477637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 478637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 48814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5091cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5260a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 538d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 539d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 540d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 569d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5766dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5776dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 5784296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5794296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5834e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58524562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58624562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 5996dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 603637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61689935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 619637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62189935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 624637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 643da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 644da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 645da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 646da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 64807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 64907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 6514e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6524e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6534e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 654da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 655b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 656b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 657a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 658b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 659b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 660ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 661ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 662ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 663ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 664ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6650b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6660b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6670b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6680b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 6709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 6859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 718e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 719e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 720e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 721e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 722e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 723e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 724e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 725e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 726e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 727e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 728e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 729e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 730e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 731e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 732e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 733e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7780a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 7844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 785f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 78620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 78720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 788f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 792d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 793d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 794df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 795d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 796d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 797d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 798d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 799d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8004296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8014296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8024296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8034296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 805637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 807d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8144e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 81589935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 81689935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 823637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 824637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 825d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 826f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 827f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 828f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 829f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 831539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 832539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 83414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 92914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 945f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 97614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 984f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 985f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 986f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 987f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 100814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1027bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 103129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 103914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1049f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1052bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1053f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 105429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1061f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 106214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 106829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 107129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 107229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 107329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1074f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1076bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1077bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1078bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 108429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 108529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 108629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 108729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 108829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 108929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 109129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 109229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 109629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 109729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 109829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 109929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 110029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 110129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 110429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 110529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1106f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1107f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1108f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1109f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1110f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1111f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1112f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1113f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1114f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1115f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1116f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1117f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1118f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1119f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1120f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1121f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1122f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1123f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1124f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1125f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1126f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1127f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 113414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1156f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11652bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11662bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1167637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11684ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11694ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1170637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1171637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1172637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11730a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11740a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 11789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 11799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 11809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 11819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 11829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 11839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 11849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 11859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 11869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 11889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 11899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 11909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 11919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 11940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 11959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 119620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 119720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 119820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 119920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 120020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 120120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 120220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 120320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 120420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 120520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 120620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 120720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 120820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 120920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 121120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 121220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 121320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 121520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 121620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 121720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 123216bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12470a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13190a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1322a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13234e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13244e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13254e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13264e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13274e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1328d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1329d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1330d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1331d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13324e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov return; 13334e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1334d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1335d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13364e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13374e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13384e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13394e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13404e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13418a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13428a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13438a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13448a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13458a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13468a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13478a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13488a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13498a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13508a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 13518a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13528a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 13559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 13569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 13589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 13609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 13649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 13659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 13699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 13709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 13729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 13739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 13749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 13769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 13789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 13799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 13819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 13829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 13839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 13859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 13899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 13909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 13919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 13929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 13949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 13969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 13989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 13999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14176bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 14719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1473a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 14742614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1475f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 147614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1496a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 14972614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1498f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 149943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 150043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 150114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 150243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 150343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 150443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 150543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 150614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1507f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1519a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15202614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1521f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 152243ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 152343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 152443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 152543ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 152643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 152714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1539f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1540f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 15509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 15519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 15539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 15579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 15589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1559f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 15609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 15619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 156999441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 15739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 15759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 15769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 15779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 15789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 15799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15807becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 15817becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 15827becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 15837becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 15847becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 15857becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 15867becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 15877becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 15887becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 15897becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 159299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 159399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 159499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 159599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 159699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 159799441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1616a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1617a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16189a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16199a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16209a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16219a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 162214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16239a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16249a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16259a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16269a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16279a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16289a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16292614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1630f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 16329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 16369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 16379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 16499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 16509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 16519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 16529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1653079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 16549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 16559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 16569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 16579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 16589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 16629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1663f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1664f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1665f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1666f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1667f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1668f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1669f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1670f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 16712614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 16722614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1673a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1674a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1675a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1676a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1677a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1682d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1683d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 16879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 16889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 16890a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 16909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 16919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 16939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 16949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 16959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 16969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 16979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 16989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 16999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17150a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17240a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 17279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1729b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1730b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1731b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1732b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1733b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1734b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1735b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 17429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 17439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 17449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 17499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 17519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 17529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 17579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 17999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 18250b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 18260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 18270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1830637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1831637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 18320b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 18330b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 18340b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 18350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 18819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 18829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1884da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1885da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1886da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1887da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1888ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1889da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1890da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1891ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1892da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1893da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1896d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1897d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1898d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1899d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1904f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1905f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1906f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1907f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1908f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1909f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1910f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19112c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19122c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19132c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19142c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1915f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1918637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1929d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 1930d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 1931d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 1932d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 1933d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 1934d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 1935d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 1936d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1942d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1943d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 1944d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 19639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 19669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 19679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 19689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 19709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 19739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 19749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 19759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 19769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 19849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 19859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 19869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 19879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 19899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 19969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 204721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 204821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 20494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 205221875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 205321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2056539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2057539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2058539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2059539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2060539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.RECYCLE_FROM_SCRAP_HEAP, 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20724213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 20734213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 20744213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 20754213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.BIND_VIEW, 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2082079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(scrapView, ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, -1); 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 209021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2091a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2092a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 20964213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 20974213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 20984213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 20994213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21004213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(child, ViewDebug.RecyclerTraceType.NEW_VIEW, 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position, getChildCount()); 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2110aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2111aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2112aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2113aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2114aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2115aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2116aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2117aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2118aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2119aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2120aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2121aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2122aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2123aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 21249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2127079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2128079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2129079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2130079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2131079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 21339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2134e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2135e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2136e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 21379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2143a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2144079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2145079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 21469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 21559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 21609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 21619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 21629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 21639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 21699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 21709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 21749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 21769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 21779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 21809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 21819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 21829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 218620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 218720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 218820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 218920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 219020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 219120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 219220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 219320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 219520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 219620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 219720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 219820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 219920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 220020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 220120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 220220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 220320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 220420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 220520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 220620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 220720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 220820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 220920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 221020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 22119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 22129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 22139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 22149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 22159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2216d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 22179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 22189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 22199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 22249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 22259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 22279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 22289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 22299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 22309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 22319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 22329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 22339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 22349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 22399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 22409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 22419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 22439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 22459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 22469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2249079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 22509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 22519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 22529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 22539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 22589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 22599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 22619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 22629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 22649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 22669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 22679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 22719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 22739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 22749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 22759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 22769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 22779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 22789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 22819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 22829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 22839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 22849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 22879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 22889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 22899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2293079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 22979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 22989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2311df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2312df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2313df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2314df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2318079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2322ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2323ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2324ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2325ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2332df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2333df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 23399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 23409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 23419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 23439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 23449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 23499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 23509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 23519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2353079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2356079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2357079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2358079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2359079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2360079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2361079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2362079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 23639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2366079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2409e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2410e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2411e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2412e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2413e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2414e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 24190e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 24200e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 24210e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24234e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 242482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 242582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 242682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 24276a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 24286a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 24296a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 24306a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 24316a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 243282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2433b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24401f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 24411f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 24421f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 244321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 244421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 244521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 24469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 24470e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 24480e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 24499d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 24500e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 245282afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 245382afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 245482afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 245582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 245682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 24571cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24581cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 24591cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 24601cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 24611cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 24621cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 24631cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 24641cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 24651cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 24661cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2467d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2468d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2469d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2470d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2471d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2472d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 24734032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2474d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2475d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2476d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2477d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2478d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2479d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2480d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2481d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2482d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2483d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2484d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2485d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2486d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2487d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2488b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2499670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2500670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2501670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2502670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2503670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 25044032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 25054032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 25064032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2507458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2508458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 25090fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2512458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2513670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 25149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 25159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 25199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 252297566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 25529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 25629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 25639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 25649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 25659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 25669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 25679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 25680a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25720a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 25749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25770a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 25799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 25809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 25829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 25839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 25849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 25859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2586005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2587005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2588005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2589005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2590005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 25917890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 25927890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 25937890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 25947890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 25957890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 25967890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 25979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 26029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 26059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 26069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 26079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 26089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26100a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 26119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 26129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 26159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 26179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 26199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26230a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 26249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 26259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 26269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 26279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 26289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 26299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 26319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 26329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 26339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 26349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 26389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 26419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26478350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2649f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2650f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 26511e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 26521e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2653f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 26541e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2655f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2656f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2657f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 26589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2659f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 26609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 26619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 26629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 26639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 26659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 26669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2679fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2680fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2681fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2682fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2683fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2684fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2685fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2686fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2687fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2688fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2689fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2690fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2691fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2692fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2693fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2718df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2719df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2720df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2721df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2722df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 27259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2727dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2728dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2729dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2730df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2731dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2733dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 273545b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 273645b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 273745b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 273845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 27399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 27419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2742dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 27439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 27459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 27489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 27499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 27639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 28009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 28029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 28039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 28049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 28059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 28079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 28089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2809079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2810079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2811e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 28129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 28329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 28339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 28359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 28370a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 28389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 284478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 28459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 28469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 284778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 2849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 2850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 285278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 285378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 285478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 285578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 285678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 285778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 285878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 28729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 28739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 287413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 287513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 287613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 287713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 287878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 288578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 288678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 288778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 288878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 288978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 289178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 289278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 289378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 289478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 289578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 289678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 289778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 289878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 289978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 290078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 290178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 290278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 290378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 290478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 290578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 290678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 290778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 290878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 290978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 291078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 291178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 291278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 291478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 291578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 291678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 291778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 291878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 291978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 292078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 292178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 292278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 292478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 292578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 292678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 292778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 292878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 292978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 293178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 293278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 293378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 293478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 293578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 293678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 293778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 293878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 293978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 294078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 294178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 294278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 294378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 294478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 294578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 294678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 294778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 294878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 294978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 295078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 295178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 295278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 295378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 295478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 295578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 295678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 295778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 295878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 295978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 296078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 296178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 296278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 296378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 296478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 296578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 296678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 2967a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 296878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 296978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 297078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 297178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 297278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 2973a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 297478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 297878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 297978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 298078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 298178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 298278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 298378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 298478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 298578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 298678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 298778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 298878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 298978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 299278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 299378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 299478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 299578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 299678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 299878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 299978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 300178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 300278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 300378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 300478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3011a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 301278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 301378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 301478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 301578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 301678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3017a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 301878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 301978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 302278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 302378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 30249d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 30259d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 30269d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 302778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 302878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 30299d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 30309d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 303278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 303478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 303578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 303678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 303778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 30499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 30509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 30519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 30529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 30539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 30549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 30559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 30569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 30579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 30589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 30599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 30609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30611e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3063637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30684032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 30694032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 30704032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3073637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 30740fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3077637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 30799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 30839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3084dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3085dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3086dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3087dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3088dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3089dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 30901fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 30911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 30921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 30931fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 30949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 30959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 30969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 30979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 30999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 310082f3495b146b267f3786997752cef25310176349Romain Guy 31019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 31029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 31049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 310513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 31069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 31079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31084cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 31099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 31134032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 31144032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 31154032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3117044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3118637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3119637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3121044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3127637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3128637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3131637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3132637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 31330a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 31340a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 31350a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3136637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3137637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3138637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3139637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3140637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3141637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3142637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3145637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31519d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 315279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 31539d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3164637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 31659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3166fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3167fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3168fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3169fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3170fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3171fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 31729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 31749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 31759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 31762585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 31772585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 31782585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 31792585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 31802585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 31814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 31826f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 31836f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 31846f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 31856f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 31866f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 31876f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 31886f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 31899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 31909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 31919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 31929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 31939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 31949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 31969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 31979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3198637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3200637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 32019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3212498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3213498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3214498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3215498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3216498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 32179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 32189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 32199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 32229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 32239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 32269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 32279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 32289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 32309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3238005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3239005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 32409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 32419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 32449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 32459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 32469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 32479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 32486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 32499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3251d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3252d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3253d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3254d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3255d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3257079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 32599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3261d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3264d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3265d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3266d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3267005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3268005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3269079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3272005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3273d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 32749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3277079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 32789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 32799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 32806198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 32816198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3282637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3285637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 32876198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 32896198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 32906198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 32916198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 32926198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 32936198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3294637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 329521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 329621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 33066198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 33076198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 33086198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 33104e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33116198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3312f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3313f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3314f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3315d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3316d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3317d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 33184032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 33194032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 33204032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 33216198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 33229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 33249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 33259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 332779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3328637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3329637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3330637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3331637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3332637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3333637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3334637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3335637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3336637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3337637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3338637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3339637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3340637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3341637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3342637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3343637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3344637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 33480a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3349637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3350637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3351637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3352637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3353637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 33560a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 33609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 336213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 33634e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 33644cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33721cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 33731cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 33741cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 33751cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 33761cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 33779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3381637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3382637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3383637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3384637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3385637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3386637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3387637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3389637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3390637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3391637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3393637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3394637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3395637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3396637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3397637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3398637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3399637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3400637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3401637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3402637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3403637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3404637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3405637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3406637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 340713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34094e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3410637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3411637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3412637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3413637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 34144cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 34154cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34174e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34184cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 34194cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 34204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 34214cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 34224cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 34234cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 34244cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 34254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 34264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 34274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 34284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 34294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 34304cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34329bc30d31322848d61f518c1db43544988faaba8fAdam Powell 34339bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 34349bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 34359bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 34369bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 34379bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 34389bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 34399bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 34409bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 34419bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 34429bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 34439bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 34449bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 34459bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 34469bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 34479bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 34489bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 34499bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 34509bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 34519bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 34529bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 34539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 34559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 34569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34570a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 34589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 34590a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 34600a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 34610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 34620a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 34630a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 34640a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 34650a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3467637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3468637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3469637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 347033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 347133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 347233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 347333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 347433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 347533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 347633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 347733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3478275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 347933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 348033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 348733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 348833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 348933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 34909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 34919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 349607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 349707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 349807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35009d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 35019d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3502a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 35049d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3505a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3506637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3507637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3508637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3509637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 351107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 351207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 351307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3515637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 35179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 35189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3519e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3520a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3521637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 35229d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3523a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3524a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3525637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3526637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3527637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3528637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3530637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3531637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3532637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3533637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3534637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3535637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3536637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3537637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3538637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3539637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 354307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 354407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 354507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 354607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 354707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 354807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 354907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 355007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 355113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 355213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 355313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 355413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 355513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 355613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 355813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 355913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 356013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 356113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 356213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 356313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 356413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 356513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 356613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 356713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 356813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 356913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 357213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 357313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 357413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 357513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 357613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 357813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 357913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 35809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 35819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 35829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 35839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 35840a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35851fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 35861fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 35871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 35881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 35899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 35909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 35919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 35939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35964cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 35979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 359879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3599637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3600637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3601637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3602637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36034e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36044cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 36054cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 36064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 36074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 360979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 36109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 36119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 36129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 36139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 36189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 362113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 362213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 362379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 36244b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 36254b4f40f84e72579417604143e5f42115769649b8Romain Guy } 36269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 36309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 36319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 36322585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 36332585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 36342585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 36352585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 36362585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 36374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 363813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 363913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 364078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 36419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 364813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 36499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 36509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 36514cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 365213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 36539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 36549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 36559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36574cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 36584cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 36594cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 36604cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 36649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 36664cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 36674cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 36684cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 36694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 36704cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 36714cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 36724cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 36734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 36744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 36754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 36764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3677637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 36784cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 36794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 36819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 36839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 36849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 36859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 36879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 36889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 36899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 36929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 36939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 36969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 36979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 36989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 36999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 37069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 37079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 37089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 37109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 37129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 37139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 37149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 37150046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 37169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 37229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 37239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 37249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 37259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 37279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 37299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3730637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 37319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 37339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 37349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 37359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 37369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3737d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3738d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3739d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3740d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3741637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3742d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3743d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3744d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3745d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3746d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3747d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3748d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3749b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3750b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3751d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3752d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3753d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3754d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3755d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3756b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3757d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3758d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3759d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3760d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3761d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3762d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 376379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3764637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 37659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 376779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 37689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 37699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 37700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 37719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 37729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 37739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 37741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 37759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 37789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37821cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 37831cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 37841cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 37851cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3787458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3788637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3789637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3790637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3791637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 37921fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3793637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3794637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3795e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3796637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3797637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3798637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3799637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 38000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3801044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3802044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3803637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3804637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3806637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3807637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3808637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3809637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3810637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3811637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3812637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3813637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3814637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3815637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3816637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3817637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3818637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3819637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 38204032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 38214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 38224032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 38234032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 38244032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3825637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 38271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 38300b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 3831458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 3832458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 38330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 3834458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 3835458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 38361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3837458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 3838458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3839d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 38409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3841458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 384279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 3843d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 384421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 384521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 384621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 3847d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 38485e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 38495e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 38505e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 38515e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 38525e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 3853d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3854d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3855d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 3856d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 386079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 386179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 3862d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3865d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 3866d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 3867d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3868d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3869d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 3870637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 38717f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 38727f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 38737f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 38747f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 387579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 387679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 387779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 387879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3880637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3881637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 3882637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3884637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 3885637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 3886637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3888637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 3889637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3890637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 3891637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 3892637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 3893637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3895637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3896637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 3897637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3898637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 3899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 3900637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3902637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 3903637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 3904d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 3906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 3907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3908d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3909637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 3910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 3911637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 3912637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3913637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 3914637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3915637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3916637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 39179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 39189d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 3919637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 3920637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3921637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 3922637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 3923637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 3924637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 3925637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39263cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 39273cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 39283cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 3929637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3930637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3931637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3932637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 39339d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 3934637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 39351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3936637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3937637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3938637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3939637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 3940637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 3941637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 3942637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 3943637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3944d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3945637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 3946637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 3947637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 3948637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3951637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3952637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3953637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3954637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3955637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3956637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3958044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 3959044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 3961637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 3962044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 3963044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 3964044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 3965044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 3966044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 3967044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 3968044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 3969044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 3970044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 3971044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 3972044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 3973044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 3974637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39761fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3987458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 3988e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 39894e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3990458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 3991458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 3992458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 3993458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 3994e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 39954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3996458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 3997458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 3998458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 3999458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 400152964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4002e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4003e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 40044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4005458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4009e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 40104032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40114032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4012e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4013e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4014e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4015e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (mDataChanged) { 4016e69370e16852c576890dd70733ad40669fd9367eAdam Powell // But we might have something in a minute. 4017e69370e16852c576890dd70733ad40669fd9367eAdam Powell post(new Runnable() { 4018e69370e16852c576890dd70733ad40669fd9367eAdam Powell @Override public void run() { 4019e69370e16852c576890dd70733ad40669fd9367eAdam Powell start(position); 4020e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4021e69370e16852c576890dd70733ad40669fd9367eAdam Powell }); 4022e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4023e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4024e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4025e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4026458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4027e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 40284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40294bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4030e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4031458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = firstPos - position + 1; 4032458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4033e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4034458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = position - lastPos + 1; 4035458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4036458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4037e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, INVALID_POSITION, SCROLL_DURATION); 4038458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4039458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40404e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4041458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4042458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4043458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4044458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4045458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4046458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4047458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4048458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 40494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4051458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4053e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 40544032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 40554032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4056458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4057458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4058458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4059458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4061e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4062e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4063e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4064e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (mDataChanged) { 4065e69370e16852c576890dd70733ad40669fd9367eAdam Powell // But we might have something in a minute. 4066e69370e16852c576890dd70733ad40669fd9367eAdam Powell post(new Runnable() { 4067e69370e16852c576890dd70733ad40669fd9367eAdam Powell @Override public void run() { 4068e69370e16852c576890dd70733ad40669fd9367eAdam Powell start(position, boundPosition); 4069e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4070e69370e16852c576890dd70733ad40669fd9367eAdam Powell }); 4071e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4072e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4073e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4074e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4075458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4076e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 40774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 40784bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4079e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (position < firstPos) { 4080458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4081458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4082458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4083458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4084458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 40854e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4086458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = firstPos - position + 1; 4087458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4088458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4089458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4090458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4091458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4092458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4093458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4094458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4095e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (position > lastPos) { 4096458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4097458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4098458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4099458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4100458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4101458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4102458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int posTravel = position - lastPos + 1; 4103458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4104458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4105458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4106458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4107458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4108458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4109458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4110458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4111458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4112e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollToVisible(position, boundPosition, SCROLL_DURATION); 4113458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4114458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41154e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4116458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4117458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4118458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4119458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4120458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4121458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTargetPos = position; 4122458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4123458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 41244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 41251fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4126458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4127e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4128e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4129322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4130322171b333a1c796fcc1428a96ea1d854a3881faErik } 4131322171b333a1c796fcc1428a96ea1d854a3881faErik 4132322171b333a1c796fcc1428a96ea1d854a3881faErik void startWithOffset(int position, int offset, int duration) { 41334032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41344032252c997be9f5d013054dc23ace855007b3a5Adam Powell 41351fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 41361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 4137e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mTargetPos = position; 4138e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4139e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4140e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4141e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4142e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4143e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4144371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int childCount = getChildCount(); 4145371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4146e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 41474bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 4148e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 4149e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = firstPos - position; 4150e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 4151e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell viewTravelCount = position - lastPos; 4152e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4153e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4154e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 41550b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4156e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4157e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4158e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4159371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 41604ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 41610b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 41620b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4163371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4164234a5715309ea74757780aff6123e3144efb5b69Adam Powell 41651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4166e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4167e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4168e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4169e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4170e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4171e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4172e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4173e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4174e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4175e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4176e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4177e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4178e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4179e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4180e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4181e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4182e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4183e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4184e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4185e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4186e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4187e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4188e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4189e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4190e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4191e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4192e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4193e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4194e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4195e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4196e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4197e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4198e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4199e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4200e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4201e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4202e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4203e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4204e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4205e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4206e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4207e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4208e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4209e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4210e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4211e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4212e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4213e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4214e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4215e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4216e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4217e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4218e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4219e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4220e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4221e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4222458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4224458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4225e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4226458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4227458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 42294e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4232458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4233458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 42344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42350b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 42360b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 42370b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4238458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4239458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4240458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 42411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4242458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4243458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4244458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4245458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4246458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4247458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4248458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 42491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 42501fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4251458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42521fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 42530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4254458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 42567e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 42571fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4260458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42614e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4264029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 42654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4266029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4267029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4270458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 42741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4277458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 42811fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 42827e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 42840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4287458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42881fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 42910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4299458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4302458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4303458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4304458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 43050b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 43060b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 43070b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4308458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 43091fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 43101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4311458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43120b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4313458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4314458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4315458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 43167e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 43171fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4318458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4319458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4320458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 43214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4322458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4323458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4324458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4325458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4326458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4327458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4328458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4329458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4330458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 43310b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4332458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4333458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4334458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4335458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4336458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4337458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4338458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 43391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4340458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 43417e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 43420b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 43431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4344458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 43451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4346458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4347458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 43480b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4349458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4350458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4351458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4352458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4353458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4354e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4355234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4356234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 43570b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4358234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4359234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4360e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4361371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4362234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4363234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4364e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4365371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4366e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43674032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4368e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 43694032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 43704032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 43714032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 43724032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 43734032252c997be9f5d013054dc23ace855007b3a5Adam Powell 43744032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 43754032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 43764032252c997be9f5d013054dc23ace855007b3a5Adam Powell 43774032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 43784032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 43790b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 43800b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 43810b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 43821fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4383e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 43840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 43850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 43860b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 43871fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4388e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4389e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4390e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4391234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 43920b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 43930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 43940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4395e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4396e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4397e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4398e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4399458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4400458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4401458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4402458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4403458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44044e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4405458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 44064bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 44074bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 44084e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 44094bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 44104bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 44114bede9e425875542976a422222510fa4056a8339Romain Guy */ 44124bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 44134bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 44144bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 44154bede9e425875542976a422222510fa4056a8339Romain Guy } 44164e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 44174bede9e425875542976a422222510fa4056a8339Romain Guy } 441821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 441921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 442021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 442121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 44224e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 442321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 442421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 442521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 442621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 442721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 44284e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44294bede9e425875542976a422222510fa4056a8339Romain Guy /** 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4432458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4440322171b333a1c796fcc1428a96ea1d854a3881faErik 4441322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4442322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4443322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4444322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4445322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4446322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4447322171b333a1c796fcc1428a96ea1d854a3881faErik * 4448322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4449322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4450322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4451322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4452322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4453322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4454322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4455322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4456322171b333a1c796fcc1428a96ea1d854a3881faErik } 4457322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4458322171b333a1c796fcc1428a96ea1d854a3881faErik } 4459322171b333a1c796fcc1428a96ea1d854a3881faErik 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4461e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4462e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4463e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4464e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4465e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4466e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4467e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4468e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4469e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4470e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4471e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4472e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4473e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4474e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4475e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4476e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4477e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4478e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4479458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4481458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 44824e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4487458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4491458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44934e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4496458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4497458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4498458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 45000b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 45010b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 45020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 45030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45074032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4508299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 45094032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 45104032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 45114032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 45124032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 45134032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 45144032252c997be9f5d013054dc23ace855007b3a5Adam Powell 451579303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 45164032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 45174032252c997be9f5d013054dc23ace855007b3a5Adam Powell (lastPos == mItemCount - 1 && 45184032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 45194032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 45204032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 45214032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 45224032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45234032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 45240046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 45250b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4526299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4529499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4530499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4531499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4532499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4533499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4534499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4535499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4536499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4537499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4538499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4539499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4540499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4541499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4542499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4543499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4544499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4545499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4546499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4547499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4548499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4549499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4550499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4551499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4552499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4553499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4554499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4555499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4556499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4557499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4558499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4559499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4560499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4561499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4562499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4563499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4564499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 45659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 45669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 45679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 45689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 45690211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 45709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 45749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 45759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 45769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 45779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 45789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 45799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 45809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 45819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 45829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 45839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 45849d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 45859d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 45869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 45876dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 45886dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 45899d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 45909d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 45919d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 45929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 45949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 45959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 45969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 45979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 45989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 45999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 46009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4601458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 46029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4603458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 46049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 46059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4606458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 46079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 46109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 46119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 46139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4614bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4615bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4616bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4617bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4618bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4619bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4620bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4621bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4622bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4623bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 46249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4625bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4626bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 46279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 46289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 46309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 46319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 46329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 46349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 46379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 46389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 46399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 46409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4642458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 46439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4646bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4647637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4648637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4649637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4650637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4651bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4652637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 46560a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 46570a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 46580a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 46590a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 46609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 46610a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4662637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4663458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 46669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4667029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4668029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4669029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4670029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 46719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4673458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 46749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 46779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 46798c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 46808c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 46818c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 46828c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4684458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4691079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4692458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4693458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4694458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 46979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 46999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4700458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4701458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 47028c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 47038c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 47048c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 47058c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4706458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4707458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4708458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4709458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4710458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4711458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4712458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4713458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4714458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4715079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 4716458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4717458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (ViewDebug.TRACE_RECYCLER) { 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.trace(child, 4719458034799861fef47e00d85d528b4dac5e00bd51Adam Powell ViewDebug.RecyclerTraceType.MOVE_TO_SCRAP_HEAP, 4720458034799861fef47e00d85d528b4dac5e00bd51Adam Powell firstPosition + i, -1); 47219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4725458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4726458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4727458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 47289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4729458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 47309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4731458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 47329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4733539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4734458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4735539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 47369d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 47379d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 47389d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 47391fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 47409d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47419d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4742458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 47439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4744458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4745458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4746458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47474e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4748458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4749458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4750458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 47519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4752458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4753029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 47542a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 47552a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4756079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4757079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4758079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4759079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4760079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4761079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 47622a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4763079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4764079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4765029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4766029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4767458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4768458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4769458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 47704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4771458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 47729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 47769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 47779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 47799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 47819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 47829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 47929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 47979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 48059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4806ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4807ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4808ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 48099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 48109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 48119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 48139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 48149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 48359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 48374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 48389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 48409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4842637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 4843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 4844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 4845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 4846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 4847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 4848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 4849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 4850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 4851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 4854637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 4855637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4856637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4857637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 48599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 48619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 48639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 48649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48664e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 48674e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 48688d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 48698d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 48704e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 48718d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 4872becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 4873becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 4874becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 48754e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 48768d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 48774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 48789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 48819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 48829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 48859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 48879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 48889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 48899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 48909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 48919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 48929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 48939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 48959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 48969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 48999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 49009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 49049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 49059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 49089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 49109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 49129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 49149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 49159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 49169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 49179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 49189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 49199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 49239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 49249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 49259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 49269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 49279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 49299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 49319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 49329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 49339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 49349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 49359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 49369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 49399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 49409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 49419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 49429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 49479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 49489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 49499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 49734032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 49744032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 49754032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 49823c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 49859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 49869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 49879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 499314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 499414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 499514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 499614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 499714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 499814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 499914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 500014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 500114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 500214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 500314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 500414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 500514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 500614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 500714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 500814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 500914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 501014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 501114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 501214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 501314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 501414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 501514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 501614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 501714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 501814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 501914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 502014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 502114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 502214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 502314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 502414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 502514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 502614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 502714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 502814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 502914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 503014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 503314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 503414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 503514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 503714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5041ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5042ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 504414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 504514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 504614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 50479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5048539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5049539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5050539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 505114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 505214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 50539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 50549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 50569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50600785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5063da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5064da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5065da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5066da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5067da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5068da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 50690785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5070ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 50710785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 50720785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5073ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5074ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 50750785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 50760785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 50770785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 50780785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 50790785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 50800785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 50810785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 51529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 51539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 51549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 51619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 51729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 51739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 51759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 51769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 517843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 517943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 518043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 518143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 518243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 518343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 518443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 518543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 518643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 518743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 518843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 518943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 519043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 519143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 519243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 519324562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 519443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 519543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 51969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 51979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 51989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5199d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 52009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 52019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 52029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 52079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 52099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 52109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 52114df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5212b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 52139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 52149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 52159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5218b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 52209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 52219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 522224443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 52239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 52249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5225b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 52279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 52289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 52309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 52409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 52439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 52449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 52459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 52469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 52479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 52489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 52499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 52509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 52519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 52529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 52549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 52559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 52569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 52579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 52589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 52609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 52619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 52714e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 52724e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 52734e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 52744e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 52754e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 52764e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 52774e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 52804e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 52814e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5302b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 531883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 53198d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 53208d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5321b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5322b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5323b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5324b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 532583fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 532683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 532783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 532883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 532983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 533083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5336cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5340b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5345105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 53559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 53599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 53609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 53649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5367b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5368b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5369b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5370b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5371c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5372c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5373c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5374c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5375c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 53761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 53771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 53781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 53791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 53801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 53811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 53821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 53831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 53841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 53851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 53861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 53871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 53881bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 53891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 53901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 53911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 53921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 53931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 53941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 53951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 53961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 53971bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 53981bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 53991bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54001bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 54011bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54021bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 54031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 54041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 54051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 54061bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5407c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 54081bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 54091bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 54111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 54121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 54131bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 54141bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 54151bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5416c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5417c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5418b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 54190a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5420b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5421b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5422b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5423b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5424b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5425b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5426b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5427b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 54280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5429b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 54384df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 54394df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5442b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5443b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5444b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5445b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5446b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5447105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 54529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 54539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 54549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 54559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 54569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 54579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5458d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 54619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 54629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 549024562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 549543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55031bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 55041bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 55059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 55079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55101bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 55111bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 55121bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5515c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 55179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 55219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 55241bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 55269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55411bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 55421bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 55489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 55499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 55509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 55519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5555aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5556aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5557aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5558aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5559aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5560aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 55619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 55629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 55639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 55679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 55689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 55719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 55729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 55739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 55779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 55789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 55809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 55829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 55839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 55849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 55869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 55879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 55909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 55919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 55929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 55939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 55949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 55959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 55969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 55979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 56009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 56019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 56029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 56065be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 56075be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 56085be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 56095be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 56105be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 561552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 561652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 561752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 561852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 561952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 562052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 562152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 562252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 56239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 56279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 56289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56317b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 56399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 565013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 566513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy * @hide 566613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy */ 566713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy @Override 566813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy protected boolean onConsistencyCheck(int consistency) { 566913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = super.onConsistencyCheck(consistency); 567013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 567113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final boolean checkLayout = (consistency & ViewDebug.CONSISTENCY_LAYOUT) != 0; 567213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 567313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (checkLayout) { 567413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // The active recycler must be empty 567513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View[] activeViews = mRecycler.mActiveViews; 567613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy int count = activeViews.length; 567713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 567813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (activeViews[i] != null) { 567913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 568052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, 568113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy "AbsListView " + this + " has a view in its active recycler: " + 568213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy activeViews[i]); 568313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 568413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 568513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 568613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy // All views in the recycler must NOT be on screen and must NOT have a parent 568713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View> scrap = mRecycler.mCurrentScrap; 568813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scrap)) result = false; 568913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final ArrayList<View>[] scraps = mRecycler.mScrapViews; 569013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy count = scraps.length; 569113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 569213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (!checkScrap(scraps[i])) result = false; 569313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 569613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 569713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 569813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 569913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy private boolean checkScrap(ArrayList<View> scrap) { 570013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (scrap == null) return true; 570113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy boolean result = true; 570213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 570313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final int count = scrap.size(); 570413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy for (int i = 0; i < count; i++) { 570513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy final View view = scrap.get(i); 570613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (view.getParent() != null) { 570713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 570852964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 570913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap still attached to a parent: " + view); 571013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 571113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy if (indexOfChild(view) >= 0) { 571213922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy result = false; 571352964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne Log.d(ViewDebug.CONSISTENCY_LOG_TAG, "AbsListView " + this + 571413922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy " has a view in its scrap heap that is also a direct child: " + view); 571513922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 571613922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 571713922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 571813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy return result; 571913922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy } 572013922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy 5721637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5722637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5723637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5724637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5725637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5726637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5727637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 572813922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5729499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5730499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5731499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5732499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5733499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 57349b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 57359b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 57363ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 57373ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 57383ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 57393ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 57403ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 57413ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 57423ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 57439b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 57442148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 57459b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5746499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5747499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5748499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5749499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 57502148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 57512148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 57522148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 57532148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 57542148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 57552148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 57562148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 57572148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5758499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5759499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 576016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5761499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5762499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 57632148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 57642148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 57652148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 57662148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 576716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5768fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5769fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 577016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5771499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 577216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5773499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5774499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5775499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5776499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5777499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5778499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5779fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5780fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5781fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5782fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5783fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5784499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5785499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5786499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5787b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5788b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5789b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5790b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5791b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5792b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5793b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5794b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5795b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5796b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 57979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 57989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 57999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 58009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 58029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 58039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5811b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5812b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5813b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5814b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5815b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5816b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5817b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5818b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5819b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5820b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5821b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5822b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5823b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5824b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5825b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5826b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5827b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5828b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5830f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5831f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5832f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5833f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5834f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5835f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5836f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5837f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5838f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5839f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5840f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5841f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5847f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5848f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5850f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 5870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 5871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 5874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 5875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 5876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 5878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 5879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 5881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 5882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 5883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 5885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 5889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 5890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 5892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 5893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 5894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 58999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 59009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 59029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 59049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 59059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5906bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 59079bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 59089bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 59099bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 59109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 59119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59124df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 59134df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 59144df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 59154df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 59164df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 59174df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 5918bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 59194df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 59204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 59210bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 59220bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 59230bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 59240bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 59250bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 59260bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 59270bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 59280bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 5929bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 59300bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 59310bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 5932079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 5933079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 5934079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 5935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 5936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 5937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 5938079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 5939539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 5940539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 5941539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 5942539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 5943539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 59449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 59459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 59469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 59499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 59509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 59539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 59549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 59559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 59589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 59599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 59649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 59659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 59669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 59699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 59719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 59739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 59749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 59759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 59779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 59799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 59839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 59849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 59859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 59869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 59879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 59899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 59929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 59939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 59959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 59969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 59989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 59999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 60019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 60029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 60039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 60049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 60069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 60099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 60119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 60139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 60159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6016539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6017539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6018539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6019539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 60219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 60229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 60239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 60259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 60269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 60279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 60289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 60309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6034f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6035f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6036f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6037f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6038f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6039f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6040f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6041f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6042f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6043f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6044f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6045f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6046f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6047f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6048f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6049f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6050f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6051539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6052539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6053539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6054539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6055539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6056539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6057f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 60580a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 60599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 60609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 60619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 60659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 60679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 60689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 60699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 60709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 60719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 60729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 60749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 60759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6083539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6084539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6085539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 61049c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 61069c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 61094df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6132539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6133539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6134539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6135539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6136539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6137539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6138539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6139539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6140539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6141539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6142539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6143539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6144539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6145539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6146539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6147539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6148539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6149539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6150539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6151539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6152539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6153539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6159079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6163079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 61679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6170539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 61719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 61739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6174079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 61759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 61769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 61779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 61789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6180539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6181539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 61839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 61849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6185539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6186539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6187539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6188539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6189539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6190539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6191539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6192539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6193539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6194539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6195539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6196539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6197539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 61989b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6202539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6215539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6216539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6217539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6218539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6219539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6220539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6221539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6222539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6223539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6224539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6225539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6226539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6227539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6228539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6238a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6241079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6242079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6243079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6247539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6248539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6250539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6251539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 62529b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 62539b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6254539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6255539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6256539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6257539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6258539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6259539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 62649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 62659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6266a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6267079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 62689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 62699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 62719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 62729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ViewDebug.TRACE_RECYCLER) { 62759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.trace(victim, 62769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewDebug.RecyclerTraceType.MOVE_FROM_ACTIVE_TO_SCRAP_HEAP, 62779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition + i, -1); 62789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 62839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 62919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 62959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 63069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 63129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 63139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 631952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 632052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 632152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 632252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 632352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 632452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 632552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 632652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 632752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 632852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 632952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 633052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 633152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 633252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 633352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 633452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 633552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 633652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 633752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6338266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 633952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 634052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 634152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 634252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 634352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 634452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 634552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 634652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 634752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 634852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 634952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 635052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 635152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 63529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6353079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6354079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6356079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6357079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6358079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6359079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6360079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6361079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6362079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6363079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6364079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6365079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6366079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6367079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6368079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6369079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6370079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6372