AbsListView.java revision e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971
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 199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.Context; 20499cb9f516062b654952d282f211bee44c31a3c2Winson Chungimport android.content.Intent; 219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.content.res.TypedArray; 229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Canvas; 239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.Rect; 249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.Drawable; 259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.graphics.drawable.TransitionDrawable; 26c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.os.Bundle; 279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Debug; 289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Handler; 299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcel; 309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.os.Parcelable; 311cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrickimport android.os.StrictMode; 329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.Editable; 339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextUtils; 349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.text.TextWatcher; 359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.util.AttributeSet; 3652964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunneimport android.util.Log; 37f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.LongSparseArray; 38539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powellimport android.util.SparseArray; 39f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.util.SparseBooleanArray; 40079e23575024e103358c982152afb7a720ae1a8aDianne Hackbornimport android.util.StateSet; 41f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.ActionMode; 42637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powellimport android.view.ContextMenu.ContextMenuInfo; 439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.Gravity; 449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.HapticFeedbackConstants; 4533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brownimport android.view.InputDevice; 469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.KeyEvent; 479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.LayoutInflater; 48f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.Menu; 49f343e1ba7e796120eefa917dbf78348feea98e11Adam Powellimport android.view.MenuItem; 509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.MotionEvent; 519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.VelocityTracker; 529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.View; 539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewConfiguration; 549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewDebug; 559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewGroup; 5613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurkaimport android.view.ViewParent; 579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport android.view.ViewTreeObserver; 58a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganovimport android.view.accessibility.AccessibilityEvent; 59c1d7e770e123adfa992d013fa294693d077cbc78alanvimport android.view.accessibility.AccessibilityManager; 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 69335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohenimport com.android.internal.R; 70335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.ArrayList; 729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectimport java.util.List; 739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project/** 75d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Base class that can be used to implement virtualized lists of items. A list does 76d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * not have a spatial definition here. For instance, subclases of this class can 77d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * display the content of the list in a grid, in a carousel, as stack, etc. 789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_stackFromBottom 829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_scrollingCache 839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_textFilterEnabled 849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_transcriptMode 859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_cacheColorHint 869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_fastScrollEnabled 879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 88f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @attr ref android.R.styleable#AbsListView_choiceMode 899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Projectpublic abstract class AbsListView extends AdapterView<ListAdapter> implements TextWatcher, 919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ViewTreeObserver.OnGlobalLayoutListener, Filter.FilterListener, 92499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ViewTreeObserver.OnTouchModeChangeListener, 93499cb9f516062b654952d282f211bee44c31a3c2Winson Chung RemoteViewsAdapter.RemoteAdapterConnectionCallback { 949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 959d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy @SuppressWarnings("UnusedDeclaration") 96539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private static final String TAG = "AbsListView"; 97539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Disables the transcript mode. 1009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_DISABLED = 0; 1049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom when a data set change 1069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * notification is received and only if the last item is already visible 1079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on screen. 1089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_NORMAL = 1; 1129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list will automatically scroll to the bottom, no matter what items 1140a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * are currently visible. 1159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 1169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTranscriptMode(int) 1179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final int TRANSCRIPT_MODE_ALWAYS_SCROLL = 2; 1199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that we are not in the middle of a touch gesture 1229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_REST = -1; 1249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1269066cfe9886ac131c34d59ed0e2d287b0e3c0087The 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 1279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * scroll gesture. 1289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DOWN = 0; 1309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch has been recognized as a tap and we are now waiting to see if the touch 1339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is a longpress 1349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_TAP = 1; 1369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates we have waited for everything we can wait for, but the user's finger is still down 1399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_DONE_WAITING = 2; 1419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the touch gesture is a scroll 1449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_SCROLL = 3; 1464e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 1479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates the view is in the process of being flung 1499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int TOUCH_MODE_FLING = 4; 1510a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 1529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 153637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the touch gesture is an overscroll - a scroll beyond the beginning or end. 154637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 155637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERSCROLL = 5; 156637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 157637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 158637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Indicates the view is being flung outside of normal content bounds 159637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * and will spring back. 160637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 161637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int TOUCH_MODE_OVERFLING = 6; 162637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 163637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 1649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Regular layout - usually an unsolicited layout from the view system 1659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_NORMAL = 0; 1679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the first item 1709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_TOP = 1; 1729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Force the selected item to be on somewhere on the screen 1759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SET_SELECTION = 2; 1779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Show the last item 1809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_FORCE_BOTTOM = 3; 1829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Make a mSelectedItem appear in a specific location and build the rest of 1859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the views from there. The top is specified by mSpecificTop. 1869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SPECIFIC = 4; 1889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout to sync as a result of a data change. Restore mSyncPosition to have its top 1919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at mSpecificTop 1929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_SYNC = 5; 1949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 1969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Layout as a result of using the navigation keys 1979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 1989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static final int LAYOUT_MOVE_SELECTION = 6; 1999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 201f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Normal list that does not indicate choices 202f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 203f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_NONE = 0; 204f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 205f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 206f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows up to one choice 207f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 208f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_SINGLE = 1; 209f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 210f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 211f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices 212f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 213f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE = 2; 214f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 215f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 216f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * The list allows multiple choices in a modal selection mode 217f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 218f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public static final int CHOICE_MODE_MULTIPLE_MODAL = 3; 219f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 220f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 221f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls if/how the user may choose/check items in the list 222f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 223f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mChoiceMode = CHOICE_MODE_NONE; 224f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 225f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 226f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Controls CHOICE_MODE_MULTIPLE_MODAL. null when inactive. 227f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 228f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ActionMode mChoiceActionMode; 229f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 230f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 231f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Wrapper for the multiple choice mode callback; AbsListView needs to perform 232f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * a few extra actions around what application code does. 233f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 234f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell MultiChoiceModeWrapper mMultiChoiceModeCallback; 235f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 236f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 237f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running count of how many items are currently checked 238f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 239f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int mCheckedItemCount; 240f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 241f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 242f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Running state of which positions are currently checked 243f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 244f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray mCheckStates; 245f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 246f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 24714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * Running state of which IDs are currently checked. 24814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * If there is a value for a given key, the checked state for that ID is true 24914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * and the value holds the last known position in the adapter for that id. 250f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 25114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> mCheckedIdStates; 252f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 253f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 2549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls how the next layout will happen 2559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLayoutMode = LAYOUT_NORMAL; 2579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Should be used by subclasses to listen to changes in the dataset 2609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AdapterDataSetObserver mDataSetObserver; 2629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The adapter containing the data to be displayed by this view 2659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ListAdapter mAdapter; 2679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 269499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * The remote adapter containing the data to be displayed by this view to be set 270499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 271499cb9f516062b654952d282f211bee44c31a3c2Winson Chung private RemoteViewsAdapter mRemoteAdapter; 272499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 273499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * If mAdapter != null, whenever this is true the adapter has stable IDs. 275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell boolean mAdapterHasStableIds; 277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 2792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This flag indicates the a full notify is required when the RemoteViewsAdapter connects 2802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 2812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen private boolean mDeferNotifyDataSetChanged = false; 2822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 2832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 2849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list selector should be drawn on top of the children or behind 2859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mDrawSelectorOnTop = false; 2879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 2899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The drawable used to draw the selector 2909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 2919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable mSelector; 2929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 294079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The current position of the selector in the list. 295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 296079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int mSelectorPosition = INVALID_POSITION; 297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 2999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Defines the selector's location and dimension at drawing time 3009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mSelectorRect = new Rect(); 3029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The data set used to store unused views that should be reused during the next layout 3059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to avoid creating new ones 3069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final RecycleBin mRecycler = new RecycleBin(); 3089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's left padding 3119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionLeftPadding = 0; 3139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's top padding 3169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionTopPadding = 0; 3189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's right padding 3219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionRightPadding = 0; 3239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The selection's bottom padding 3269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectionBottomPadding = 0; 3289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view's padding 3319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect mListPadding = new Rect(); 3339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Subclasses must retain their measure spec from onMeasure() into this member 3369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mWidthMeasureSpec = 0; 3389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The top scroll indicator 3419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollUp; 3439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The down scroll indicator 3469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View mScrollDown; 3489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the view is scrolling, this flag is set to true to indicate subclasses that 3519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the drawing cache was enabled on the children 3529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mCachingStarted; 3540211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy boolean mCachingActive; 3559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the view that received the down motion event 3589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionPosition; 3609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset to the top of the mMotionPosition view when the down motion event was received 3639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewOriginalTop; 3659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The desired offset to the top of the mMotionPosition view after a scroll 3689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionViewNewTop; 3709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The X value associated with the the down motion event 3739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionX; 3759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The Y value associated with the the down motion event 3789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionY; 3809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * One of TOUCH_MODE_REST, TOUCH_MODE_DOWN, TOUCH_MODE_TAP, TOUCH_MODE_SCROLL, or 3839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * TOUCH_MODE_DONE_WAITING 3849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mTouchMode = TOUCH_MODE_REST; 3869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value from on the previous motion event (if any) 3899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mLastY; 3919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * How far the finger moved before we started scrolling 3949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mMotionCorrection; 3969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 3989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Determines speed during touch scrolling 3999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private VelocityTracker mVelocityTracker; 4019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Handles one frame of a fling 4049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FlingRunnable mFlingRunnable; 4064e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 407458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 408458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Handles scrolling between positions within the list. 409458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4101fa179ef41c06bd19da70fd9bf95741238791940Adam Powell PositionScroller mPositionScroller; 4119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The offset in pixels form the top of the AdapterView to the top 4149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of the currently selected view. Used to save and restore state. 4159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mSelectedTop = 0; 4179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the list is stacked from the bottom edge or 4209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the top edge. 4219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mStackFromBottom; 4239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to true, the list automatically discards the children's 4269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * bitmap cache after scrolling. 4279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mScrollingCacheEnabled; 4290a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 4309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Whether or not to enable the fast scroll feature on this list 4329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean mFastScrollEnabled; 4349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Optional callback to notify client when scroll position has changed 4379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private OnScrollListener mOnScrollListener; 4399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Keeps track of our accessory window 4429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow mPopup; 4449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used with type filter window 4479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project EditText mTextFilter; 4499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether to use pixels-based or position-based scrollbar 4529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * properties. 4539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mSmoothScrollbarEnabled = true; 4559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view supports filtering 4589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mTextFilterEnabled; 4609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this view is currently displaying a filtered view of the data 4639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFiltered; 4659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Rectangle used for hit testing children 4689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Rect mTouchFrame; 4709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 4729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position to resurrect the selected position to. 4739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mResurrectToPosition = INVALID_POSITION; 4759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ContextMenuInfo mContextMenuInfo = null; 4774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4780b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell /** 479637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to record overscroll 480637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 481637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollMax; 482637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 483637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 484637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Content height divided by this is the overscroll limit. 485637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 486637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell static final int OVERSCROLL_LIMIT_DIVISOR = 3; 487637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 488637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 48914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * How many positions in either direction we will search to try to 49014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * find a checked item with a stable ID that moved position across 49114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell * a data set change. If the item isn't found it will be unselected. 49214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell */ 49314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell private static final int CHECK_POSITION_SEARCH_DISTANCE = 20; 49414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 49514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell /** 4969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Used to request a layout when we changed touch mode 4979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_UNKNOWN = -1; 4999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_ON = 0; 5009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final int TOUCH_MODE_OFF = 1; 5019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastTouchMode = TOUCH_MODE_UNKNOWN; 5039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_SCROLLING = false; 5059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mScrollProfilingStarted = false; 5069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private static final boolean PROFILE_FLINGING = false; 5089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mFlingProfilingStarted = false; 5099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * The StrictMode "critical time span" objects to catch animation 5121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * stutters. Non-null when a time-sensitive animation is 5131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * in-flight. Must call finish() on them when done animating. 5141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick * These are no-ops on user builds. 5151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick */ 5161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mScrollStrictSpan = null; 5171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick private StrictMode.Span mFlingStrictSpan = null; 5181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 5191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick /** 5209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForLongPress runnable we posted, if any 5219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForLongPress mPendingCheckForLongPress; 5239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForTap runnable we posted, if any 5269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private Runnable mPendingCheckForTap; 5280a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last CheckForKeyLongPress runnable we posted, if any 5319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private CheckForKeyLongPress mPendingCheckForKeyLongPress; 5339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Acts upon click 5369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private AbsListView.PerformClick mPerformClick; 5389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 540d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn * Delayed action for touch mode. 541d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn */ 542d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn private Runnable mTouchModeReset; 543d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 544d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn /** 5459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This view is in transcript mode -- it shows the bottom of the list when the data 5469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * changes 5479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mTranscriptMode; 5499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that this list is always drawn on top of a solid, single-color, opaque 5529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * background 5539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mCacheColorHint; 5559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The select child's view (from the adapter's getView) is enabled. 5589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean mIsChildViewEnabled; 5609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The last scroll state reported to clients through {@link OnScrollListener}. 5639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastScrollState = OnScrollListener.SCROLL_STATE_IDLE; 5659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Helper object that renders and controls the fast scroll thumb. 5689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private FastScroller mFastScroller; 5709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 571d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private boolean mGlobalLayoutListenerAddedFilter; 5729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 573d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private int mTouchSlop; 5749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private float mDensityScale; 5759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnection mDefInputConnection; 5771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn private InputConnectionWrapper mPublicInputConnection; 5786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 5796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy private Runnable mClearScrollingCache; 580161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell Runnable mPositionScrollAfterLayout; 5814296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMinimumVelocity; 5824296fc4d326447875c26a925f12b3935632f13bbRomain Guy private int mMaximumVelocity; 58321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy private float mVelocityScale = 1.0f; 5844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy final boolean[] mIsScrap = new boolean[1]; 5864e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 58724562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // True when the popup should be hidden because of a call to 58824562487126b48c8ff39a42b76f3705f238da6c8Romain Guy // dispatchDisplayHint() 58924562487126b48c8ff39a42b76f3705f238da6c8Romain Guy private boolean mPopupHidden; 5904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5924cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * ID of the active pointer. This is used to retain consistency during 5934cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * drags/flings if multiple pointers are used. 5944cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 5954cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private int mActivePointerId = INVALID_POINTER; 5964e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 5974cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell /** 5984cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Sentinel value for no current active pointer. 5994cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * Used by {@link #mActivePointerId}. 6004cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell */ 6014cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private static final int INVALID_POINTER = -1; 6026dfed24158b8fc9150abee23992db621cd82aa43Romain Guy 6039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 604637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overscroll by during edge effects 605637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 606637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverscrollDistance; 607637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 608637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 609637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Maximum distance to overfling during edge effects 610637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 611637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int mOverflingDistance; 612637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 613637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // These two EdgeGlows are always set and used together. 614637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Checking one for null is as good as checking both. 615637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 616637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 617637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the top edge glow. 618637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 61989935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowTop; 620637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 621637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 622637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Tracks the state of the bottom edge glow. 623637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 62489935e41c593a599e8955388b27fb926e60e5e94Adam Powell private EdgeEffect mEdgeGlowBottom; 625637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 626637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the top of the list and 628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the top of the first position in the adapter, based on the last time 629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 631637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mFirstPositionDistanceGuess; 632637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 633637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 634637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * An estimate of how many pixels are between the bottom of the list and 635637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * the bottom of the last position in the adapter, based on the last time 636637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * we saw it. Used to hint where to draw edge glows. 637637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 638637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mLastPositionDistanceGuess; 639637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 640637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 641637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Used for determining when to cancel out of overscroll. 642637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 643637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private int mDirection = 0; 644637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 645637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 646da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * Tracked on measurement in transcript mode. Makes sure that we can still pin to 647da13dbae6fe0619101433ac861da460b8be63a36Adam Powell * the bottom correctly on resizes. 648da13dbae6fe0619101433ac861da460b8be63a36Adam Powell */ 649da13dbae6fe0619101433ac861da460b8be63a36Adam Powell private boolean mForceTranscriptScroll; 650da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 65107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingLeft; 65207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell private int mGlowPaddingRight; 65307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 654c1d7e770e123adfa992d013fa294693d077cbc78alanv /** 655c1d7e770e123adfa992d013fa294693d077cbc78alanv * Used for interacting with list items from an accessibility service. 656c1d7e770e123adfa992d013fa294693d077cbc78alanv */ 657c1d7e770e123adfa992d013fa294693d077cbc78alanv private ListItemAccessibilityDelegate mAccessibilityDelegate; 658c1d7e770e123adfa992d013fa294693d077cbc78alanv 6594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventFromIndex; 6604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov private int mLastAccessibilityScrollEventToIndex; 6614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 662da13dbae6fe0619101433ac861da460b8be63a36Adam Powell /** 663b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell * Track if we are currently attached to a window. 664b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell */ 665a2b986e72c403f0b2ea593884e3135254bb83d30Adam Powell boolean mIsAttached; 666b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell 667b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell /** 668ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell * Track the item count from the last time we handled a data change. 669ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell */ 670ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell private int mLastHandledItemCount; 671ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell 672ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell /** 6730b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell * Used for smooth scrolling at a consistent rate 6740b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell */ 6750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell static final Interpolator sLinearInterpolator = new LinearInterpolator(); 6760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 6770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell /** 678e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * The saved state that we will be restoring from when we next sync. 679e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * Kept here so that if we happen to be asked to save our state before 680e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * the sync happens, we can return this existing data rather than losing 681e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn * it. 682e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn */ 683e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn private SavedState mPendingSync; 684e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 685e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn /** 6869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Interface definition for a callback to be invoked when the list or grid 6879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * has been scrolled. 6889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public interface OnScrollListener { 6909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not scrolling. Note navigating the list using the trackball counts as 6939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * being in the idle state since these transitions are not animated. 6949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_IDLE = 0; 6969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user is scrolling using touch, and their finger is still on the screen 6999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_TOUCH_SCROLL = 1; 7019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The user had previously been scrolling using touch and had performed a fling. The 7049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * animation is now coasting to a stop 7059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static int SCROLL_STATE_FLING = 2; 7079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked while the list view or grid view is being scrolled. If the 7109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view is being scrolled, this method will be called before the next frame of the scroll is 7119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * rendered. In particular, it will be called before any calls to 7129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Adapter#getView(int, View, ViewGroup)}. 7139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 7169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrollState The current scroll state. One of {@link #SCROLL_STATE_IDLE}, 7179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #SCROLL_STATE_TOUCH_SCROLL} or {@link #SCROLL_STATE_IDLE}. 7189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScrollStateChanged(AbsListView view, int scrollState); 7209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 7229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Callback method to be invoked when the list or grid has been scrolled. This will be 7239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * called after the scroll has completed 7249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view whose scroll state is being reported 7259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstVisibleItem the index of the first visible cell (ignore if 7269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visibleItemCount == 0) 7279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param visibleItemCount the number of visible cells 7289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param totalItemCount the number of items in the list adaptor 7299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 7309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, 7319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int totalItemCount); 7329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 734e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 735e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * The top-level view of a list item can implement this interface to allow 736e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * itself to modify the bounds of the selection shown for that item. 737e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 738e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public interface SelectionBoundsAdjuster { 739e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn /** 740e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * Called to allow the list item to adjust the bounds shown for 741e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * its selection. 742e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * 743e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * @param bounds On call, this contains the bounds the list has 744e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * selected for the item (that is the bounds of the entire view). The 745e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn * values can be modified as desired. 746e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn */ 747e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void adjustListItemSelectionBounds(Rect bounds); 748e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 749e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 7509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context) { 7519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context); 7529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setVerticalScrollBarEnabled(true); 7559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(R.styleable.View); 7569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initializeScrollbars(a); 7579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 7589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs) { 7619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this(context, attrs, com.android.internal.R.attr.absListViewStyle); 7629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public AbsListView(Context context, AttributeSet attrs, int defStyle) { 7659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(context, attrs, defStyle); 7669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project initAbsListView(); 7679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TypedArray a = context.obtainStyledAttributes(attrs, 7699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView, defStyle, 0); 7709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = a.getDrawable(com.android.internal.R.styleable.AbsListView_listSelector); 7729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null) { 7739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(d); 7749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 7759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = a.getBoolean( 7779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.styleable.AbsListView_drawSelectorOnTop, false); 7789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean stackFromBottom = a.getBoolean(R.styleable.AbsListView_stackFromBottom, false); 7809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setStackFromBottom(stackFromBottom); 7819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean scrollingCacheEnabled = a.getBoolean(R.styleable.AbsListView_scrollingCache, true); 7839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setScrollingCacheEnabled(scrollingCacheEnabled); 7849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean useTextFilter = a.getBoolean(R.styleable.AbsListView_textFilterEnabled, false); 7869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTextFilterEnabled(useTextFilter); 7879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int transcriptMode = a.getInt(R.styleable.AbsListView_transcriptMode, 7899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project TRANSCRIPT_MODE_DISABLED); 7909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setTranscriptMode(transcriptMode); 7919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int color = a.getColor(R.styleable.AbsListView_cacheColorHint, 0); 7939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setCacheColorHint(color); 7940a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 7959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean enableFastScroll = a.getBoolean(R.styleable.AbsListView_fastScrollEnabled, false); 7969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFastScrollEnabled(enableFastScroll); 7979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 7989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean smoothScrollbar = a.getBoolean(R.styleable.AbsListView_smoothScrollbar, true); 7999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSmoothScrollbarEnabled(smoothScrollbar); 8004e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 801f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setChoiceMode(a.getInt(R.styleable.AbsListView_choiceMode, CHOICE_MODE_NONE)); 80220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollAlwaysVisible( 80320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell a.getBoolean(R.styleable.AbsListView_fastScrollAlwaysVisible, false)); 804f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 8059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project a.recycle(); 8069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 8079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 808d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void initAbsListView() { 809d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Setting focusable in touch mode will set the focusable property to true 810df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy setClickable(true); 811d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setFocusableInTouchMode(true); 812d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setWillNotDraw(false); 813d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setAlwaysDrawnWithCacheEnabled(false); 814d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy setScrollingCacheEnabled(true); 815d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 8164296fc4d326447875c26a925f12b3935632f13bbRomain Guy final ViewConfiguration configuration = ViewConfiguration.get(mContext); 8174296fc4d326447875c26a925f12b3935632f13bbRomain Guy mTouchSlop = configuration.getScaledTouchSlop(); 8184296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMinimumVelocity = configuration.getScaledMinimumFlingVelocity(); 8194296fc4d326447875c26a925f12b3935632f13bbRomain Guy mMaximumVelocity = configuration.getScaledMaximumFlingVelocity(); 820637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollDistance = configuration.getScaledOverscrollDistance(); 821637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverflingDistance = configuration.getScaledOverflingDistance(); 822637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 823d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mDensityScale = getContext().getResources().getDisplayMetrics().density; 824d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 8250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 826637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 827637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell public void setOverScrollMode(int mode) { 828637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mode != OVER_SCROLL_NEVER) { 829637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop == null) { 8304e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira Context context = getContext(); 83189935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowTop = new EdgeEffect(context); 83289935e41c593a599e8955388b27fb926e60e5e94Adam Powell mEdgeGlowBottom = new EdgeEffect(context); 833637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 834637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop = null; 836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom = null; 837637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell super.setOverScrollMode(mode); 839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 841d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 842f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@inheritDoc} 843f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 844f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 845f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setAdapter(ListAdapter adapter) { 846f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (adapter != null) { 847539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mAdapterHasStableIds = mAdapter.hasStableIds(); 848539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapterHasStableIds && 849f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates == null) { 85014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 851f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 852f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 853f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 854f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 855f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 856f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 857f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 858f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 859f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 860f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 861f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 862f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 863f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 864f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the number of items currently selected. This will only be valid 865f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the choice mode is not {@link #CHOICE_MODE_NONE} (default). 866f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 867f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * <p>To determine the specific items that are currently selected, use one of 868f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the <code>getChecked*</code> methods. 869f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 870f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The number of items currently selected 871f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 872f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPosition() 873f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemPositions() 874f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #getCheckedItemIds() 875f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 876f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemCount() { 877f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckedItemCount; 878f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 879f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 880f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 881f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the checked state of the specified position. The result is only 882f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * valid if the choice mode has been set to {@link #CHOICE_MODE_SINGLE} 883f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or {@link #CHOICE_MODE_MULTIPLE}. 884f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 885f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state to return 886f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The item's checked state or <code>false</code> if choice mode 887f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * is invalid 888f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 889f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 890f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 891f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean isItemChecked(int position) { 892f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mCheckStates != null) { 893f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.get(position); 894f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 895f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 896f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 897f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 898f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 899f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 900f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the currently checked item. The result is only valid if the choice 901f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * mode has been set to {@link #CHOICE_MODE_SINGLE}. 902f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 903f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The position of the currently checked item or 904f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #INVALID_POSITION} if nothing is selected 905f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 906f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 907f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 908f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getCheckedItemPosition() { 909f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_SINGLE && mCheckStates != null && mCheckStates.size() == 1) { 910f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates.keyAt(0); 911f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 912f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 913f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return INVALID_POSITION; 914f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 915f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 916f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 917f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items in the list. The result is only valid if 918f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has not been set to {@link #CHOICE_MODE_NONE}. 919f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 920f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A SparseBooleanArray which will return true for each call to 921f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * get(int position) where position is a position in the list, 922f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * or <code>null</code> if the choice mode is set to 923f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_NONE}. 924f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 925f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public SparseBooleanArray getCheckedItemPositions() { 926f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 927f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mCheckStates; 928f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 929f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return null; 930f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 931f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 932f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 933f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Returns the set of checked items ids. The result is only valid if the 934f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * choice mode has not been set to {@link #CHOICE_MODE_NONE} and the adapter 935f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * has stable IDs. ({@link ListAdapter#hasStableIds()} == {@code true}) 936f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 937f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return A new array which contains the id of each checked item in the 938f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * list. 939f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 940f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public long[] getCheckedItemIds() { 941f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE || mCheckedIdStates == null || mAdapter == null) { 942f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return new long[0]; 943f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 944f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 94514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idStates = mCheckedIdStates; 946f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final int count = idStates.size(); 947f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long[] ids = new long[count]; 948f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 949f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell for (int i = 0; i < count; i++) { 950f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell ids[i] = idStates.keyAt(i); 951f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 952f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 953f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return ids; 954f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 955f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 956f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 957f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Clear any choices previously set 958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void clearChoices() { 960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates != null) { 961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null) { 964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Sets the checked state of the specified position. The is only valid if 971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * the choice mode has been set to {@link #CHOICE_MODE_SINGLE} or 972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}. 973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position The item whose checked state is to be checked 975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param value The new checked state for the item 976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setItemChecked(int position, boolean value) { 978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_NONE) { 979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return; 980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Start selection mode if needed. We don't need to if we're unchecking something. 983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode == null) { 984a798170f2abe198f806b12dd904830bc25257525Adam Powell if (mMultiChoiceModeCallback == null || 985a798170f2abe198f806b12dd904830bc25257525Adam Powell !mMultiChoiceModeCallback.hasWrappedCallback()) { 986a798170f2abe198f806b12dd904830bc25257525Adam Powell throw new IllegalStateException("AbsListView: attempted to start selection mode " + 987a798170f2abe198f806b12dd904830bc25257525Adam Powell "for CHOICE_MODE_MULTIPLE_MODAL but no choice mode callback was " + 988a798170f2abe198f806b12dd904830bc25257525Adam Powell "supplied. Call setMultiChoiceModeListener to set a callback."); 989a798170f2abe198f806b12dd904830bc25257525Adam Powell } 990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean oldValue = mCheckStates.get(position); 995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, value); 996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 99814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (oldValue != value) { 1004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell final long id = mAdapter.getItemId(position); 1012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, value); 1014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean updateIds = mCheckedIdStates != null && mAdapter.hasStableIds(); 1017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Clear all values if we're checking something, or unchecking the currently 1018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // selected item 1019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value || isItemChecked(position)) { 1020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 1022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 1023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // this may end up selecting the value we just cleared but this way 1026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // we ensure length of mCheckStates is 1, a fact getCheckedItemPosition relies on 1027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (value) { 1028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (updateIds) { 103014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1031f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1032f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1033f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1034f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1035f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1036f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1037f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1038f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Do not generate a data change while we are in the layout phase 1039f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (!mInLayout && !mBlockLayoutRequests) { 1040f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 1041f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 1042f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 1043f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1044f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1045f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1046f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell @Override 1047f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean performItemClick(View view, int position, long id) { 1048f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 1049bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell boolean dispatchItemClick = true; 1050f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1051f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1052f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell handled = true; 105329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell boolean checkedStateChanged = false; 1054f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1055f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE || 1056f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null)) { 1057f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1058f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, newValue); 1059f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1060f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 106114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1062f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1063f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.delete(mAdapter.getItemId(position)); 1064f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1065f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1066f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1067f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount++; 1068f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else { 1069f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount--; 1070f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1071f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1072f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 1073f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell position, id, newValue); 1074bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell dispatchItemClick = false; 1075f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 107629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1077f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mChoiceMode == CHOICE_MODE_SINGLE) { 1078f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean newValue = !mCheckStates.get(position, false); 1079f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (newValue) { 1080f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.clear(); 1081f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates.put(position, true); 1082f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates != null && mAdapter.hasStableIds()) { 1083f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates.clear(); 108414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.put(mAdapter.getItemId(position), position); 1085f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1086f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 1; 1087f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } else if (mCheckStates.size() == 0 || !mCheckStates.valueAt(0)) { 1088f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedItemCount = 0; 1089f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 109029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell checkedStateChanged = true; 1091f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1092f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 109329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (checkedStateChanged) { 109429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell updateOnScreenCheckedViews(); 109529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 1096f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1097f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1098bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell if (dispatchItemClick) { 1099bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell handled |= super.performItemClick(view, position, id); 1100bf5f2b3ffebcf4201f228b73137f32486638775fAdam Powell } 1101f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1102f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return handled; 1103f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1104f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1105f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 110629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * Perform a quick, in-place update of the checked or activated state 110729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * on all visible item views. This should only be called when a valid 110829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell * choice mode is active. 110929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell */ 111029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell private void updateOnScreenCheckedViews() { 111129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int firstPos = mFirstPosition; 111229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int count = getChildCount(); 111329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final boolean useActivated = getContext().getApplicationInfo().targetSdkVersion 111429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell >= android.os.Build.VERSION_CODES.HONEYCOMB; 111529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell for (int i = 0; i < count; i++) { 111629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final View child = getChildAt(i); 111729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell final int position = firstPos + i; 111829382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 111929382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell if (child instanceof Checkable) { 112029382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell ((Checkable) child).setChecked(mCheckStates.get(position)); 112129382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } else if (useActivated) { 112229382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell child.setActivated(mCheckStates.get(position)); 112329382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112429382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112529382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell } 112629382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell 112729382d9d9d03553dfbc235d32d27be13b4c76c5fAdam Powell /** 1128f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1129f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1130f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @return The current choice mode 1131f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1132f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public int getChoiceMode() { 1133f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mChoiceMode; 1134f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1135f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1136f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1137f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Defines the choice behavior for the List. By default, Lists do not have any choice behavior 1138f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * ({@link #CHOICE_MODE_NONE}). By setting the choiceMode to {@link #CHOICE_MODE_SINGLE}, the 1139f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * List allows up to one item to be in a chosen state. By setting the choiceMode to 1140f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE}, the list allows any number of items to be chosen. 1141f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1142f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param choiceMode One of {@link #CHOICE_MODE_NONE}, {@link #CHOICE_MODE_SINGLE}, or 1143f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE} 1144f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1145f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setChoiceMode(int choiceMode) { 1146f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceMode = choiceMode; 1147f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceActionMode != null) { 1148f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode.finish(); 1149f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 1150f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1151f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode != CHOICE_MODE_NONE) { 1152f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckStates == null) { 1153f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = new SparseBooleanArray(); 1154f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1155f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mCheckedIdStates == null && mAdapter != null && mAdapter.hasStableIds()) { 115614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates = new LongSparseArray<Integer>(); 1157f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1158f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Modal multi-choice mode only has choices when the mode is active. Clear them. 1159f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 1160f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 1161f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 1162f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1163f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1164f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1165f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1166f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1167f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Set a {@link MultiChoiceModeListener} that will manage the lifecycle of the 1168f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selection {@link ActionMode}. Only used when the choice mode is set to 1169f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #CHOICE_MODE_MULTIPLE_MODAL}. 1170f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1171f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param listener Listener that will manage the selection mode 1172f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 1173f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @see #setChoiceMode(int) 1174f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 1175f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setMultiChoiceModeListener(MultiChoiceModeListener listener) { 1176f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mMultiChoiceModeCallback == null) { 1177f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback = new MultiChoiceModeWrapper(); 1178f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1179f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mMultiChoiceModeCallback.setWrapped(listener); 1180f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1181f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1182f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 1183637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return true if all list content currently fits within the view boundaries 1184637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 1185637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private boolean contentFits() { 1186637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 11872bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount == 0) return true; 11882bed570bba183249c6ca9ca1151d1d23808de8c1Adam Powell if (childCount != mItemCount) return false; 1189637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 11904ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell return getChildAt(0).getTop() >= mListPadding.top && 11914ce35419cea4c320b71f848cf00fd6f5d17e960eAdam Powell getChildAt(childCount - 1).getBottom() <= getHeight() - mListPadding.bottom; 1192637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 1193637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1194637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 11950a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Enables fast scrolling by letting the user quickly scroll through lists by 11960a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * dragging the fast scroll thumb. The adapter attached to the list may want 11979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to implement {@link SectionIndexer} if it wishes to display alphabet preview and 11980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * jump between sections of the list. 11999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see SectionIndexer 12009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isFastScrollEnabled() 12019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled whether or not to enable fast scrolling 12029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFastScrollEnabled(boolean enabled) { 12049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScrollEnabled = enabled; 12059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabled) { 12069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller == null) { 12079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = new FastScroller(getContext(), this); 12089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 12109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 12119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.stop(); 12129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller = null; 12139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12160a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 12179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 121820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Set whether or not the fast scroller should always be shown in place of the 121920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * standard scrollbars. Fast scrollers shown in this way will not fade out and will 122020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * be a permanent fixture within the list. Best combined with an inset scroll bar style 122120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * that will ensure enough padding. This will enable fast scrolling if it is not 122220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * already enabled. 122320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 122420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @param alwaysShow true if the fast scroller should always be displayed. 122520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setScrollBarStyle(int) 122620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollEnabled(boolean) 122720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 122820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setFastScrollAlwaysVisible(boolean alwaysShow) { 122920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (alwaysShow && !mFastScrollEnabled) { 123020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell setFastScrollEnabled(true); 123120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 123420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setAlwaysShow(alwaysShow); 123520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 123620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 123720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell computeOpaqueFlags(); 123820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell recomputePadding(); 123920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 124020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 124120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 124220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * Returns true if the fast scroller is set to always show on this view rather than 124320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * fade out when not in use. 124420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * 124520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @return true if the fast scroller will always show. 124620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell * @see #setFastScrollAlwaysVisible(boolean) 124720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell */ 124820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public boolean isFastScrollAlwaysVisible() { 124920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return mFastScrollEnabled && mFastScroller.isAlwaysShowEnabled(); 125020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 125220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 125320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public int getVerticalScrollbarWidth() { 125416bb80af66012cee1625dd4e926c1fbdf87b8670Adam Powell if (isFastScrollAlwaysVisible()) { 125520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return Math.max(super.getVerticalScrollbarWidth(), mFastScroller.getWidth()); 125620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return super.getVerticalScrollbarWidth(); 125820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 125920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 126020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell /** 12619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 12629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setFastScrollEnabled(boolean) 12639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if fast scroll is enabled, false otherwise 12649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 12669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isFastScrollEnabled() { 12679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScrollEnabled; 12689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12690a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 127020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 127120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell public void setVerticalScrollbarPosition(int position) { 127220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell super.setVerticalScrollbarPosition(position); 127320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell if (mFastScroller != null) { 127420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell mFastScroller.setScrollbarPosition(position); 127520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 127620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 127720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 12789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * If fast scroll is visible, then don't draw the vertical scrollbar. 12800a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @hide 12819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 12829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 12839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isVerticalScrollBarHidden() { 12849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFastScroller != null && mFastScroller.isVisible(); 12859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 12869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 12879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 12889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is enabled, the position and size of the scrollbar thumb 12899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is computed based on the number of visible pixels in the visible items. This 12909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * however assumes that all list items have the same height. If you use a list in 12919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * which items have different heights, the scrollbar will change appearance as the 12929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * user scrolls through the list. To avoid this issue, you need to disable this 12939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * property. 12949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 12959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When smooth scrollbar is disabled, the position and size of the scrollbar thumb 12969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is based solely on the number of items in the adapter and the position of the 12979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * visible items inside the adapter. This provides a stable scrollbar as the user 12980a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * navigates through a list of items with varying heights. 12999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled Whether or not to enable smooth scrollbar. 13019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13020a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * @see #setSmoothScrollbarEnabled(boolean) 13039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_smoothScrollbar 13049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSmoothScrollbarEnabled(boolean enabled) { 13069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSmoothScrollbarEnabled = enabled; 13079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current state of the fast scroll feature. 13119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if smooth scrollbar is enabled is enabled, false otherwise. 13139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setSmoothScrollbarEnabled(boolean) 13159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 13179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isSmoothScrollbarEnabled() { 13189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSmoothScrollbarEnabled; 13199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set the listener that will receive notifications every time the list scrolls. 13239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 13249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param l the scroll listener 13259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setOnScrollListener(OnScrollListener l) { 13279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener = l; 13289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 13299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 13319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 13329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Notify our scroll listener (if there is one) of a change in scroll state 13339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 13349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void invokeOnItemScrollListener() { 13359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 13369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 13399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOnScrollListener.onScroll(this, mFirstPosition, getChildCount(), mItemCount); 13409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13410a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(0, 0, 0, 0); // dummy values, View's implementation does not use these. 13429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 13439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1344a0156177cdc809795dd8bc5a19943dd2b6f82b66Svetoslav Ganov @Override 13454e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov public void sendAccessibilityEvent(int eventType) { 13464e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // Since this class calls onScrollChanged even if the mFirstPosition and the 13474e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // child count have not changed we will avoid sending duplicate accessibility 13484e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov // events. 13494e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov if (eventType == AccessibilityEvent.TYPE_VIEW_SCROLLED) { 1350d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int firstVisiblePosition = getFirstVisiblePosition(); 1351d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov final int lastVisiblePosition = getLastVisiblePosition(); 1352d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov if (mLastAccessibilityScrollEventFromIndex == firstVisiblePosition 1353d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov && mLastAccessibilityScrollEventToIndex == lastVisiblePosition) { 13549c3e0e68260fe50456996d75304b73054cbde94aalanv return; 13554e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } else { 1356d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventFromIndex = firstVisiblePosition; 1357d9ee72fddb8be40e414a831fb80458dc48699613Svetoslav Ganov mLastAccessibilityScrollEventToIndex = lastVisiblePosition; 13584e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13594e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13604e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov super.sendAccessibilityEvent(eventType); 13614e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov } 13624e03f5910cf641e2610f4cbe3fc24d84c430d1e8Svetoslav Ganov 13638a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13648a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityEvent(AccessibilityEvent event) { 13658a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityEvent(event); 13668a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov event.setClassName(AbsListView.class.getName()); 13678a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 13688a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 13698a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov @Override 13708a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov public void onInitializeAccessibilityNodeInfo(AccessibilityNodeInfo info) { 13718a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov super.onInitializeAccessibilityNodeInfo(info); 13728a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov info.setClassName(AbsListView.class.getName()); 1373fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled()) { 1374fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getFirstVisiblePosition() > 0) { 1375fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD); 1376fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1377fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (getLastVisiblePosition() < getCount() - 1) { 1378fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov info.addAction(AccessibilityNodeInfo.ACTION_SCROLL_FORWARD); 1379fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 1380a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1381a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1382a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov 1383a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov @Override 1384a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov public boolean performAccessibilityAction(int action, Bundle arguments) { 138548d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov if (super.performAccessibilityAction(action, arguments)) { 138648d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return true; 138748d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov } 1388a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov switch (action) { 1389a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_FORWARD: { 1390fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && getLastVisiblePosition() < getCount() - 1) { 1391a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1392a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(viewportHeight, PositionScroller.SCROLL_DURATION); 1393a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1394a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1395a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1396a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SCROLL_BACKWARD: { 1397fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isEnabled() && mFirstPosition > 0) { 1398a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov final int viewportHeight = getHeight() - mListPadding.top - mListPadding.bottom; 1399a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov smoothScrollBy(-viewportHeight, PositionScroller.SCROLL_DURATION); 1400a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov return true; 1401a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 1402a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } return false; 1403a1dc761c8322355eb1bb71d3d6c9c603c1d1fc0fSvetoslav Ganov } 140448d1586f4065fc9ab97a679da1e4f7c327c943f2Svetoslav Ganov return false; 14058a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov } 14068a78fd4d9572dff95432fcc4ba0e87563415b728Svetoslav Ganov 14079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the children's drawing cache is used during a scroll. 14099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will consume more memory. 14109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the scrolling cache is enabled, false otherwise 14129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setScrollingCacheEnabled(boolean) 14149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isScrollingCacheEnabled() { 14189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mScrollingCacheEnabled; 14199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the children's drawing cache during a scroll. 14239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * By default, the drawing cache is enabled but this will use more memory. 14249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When the scrolling cache is enabled, the caches are kept after the 14269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * first scrolling. You can manually clear the cache by calling 14279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.view.ViewGroup#setChildrenDrawingCacheEnabled(boolean)}. 14289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param enabled true to enable the scroll cache, false otherwise 14309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #isScrollingCacheEnabled() 14329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see View#setDrawingCacheEnabled(boolean) 14339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollingCacheEnabled(boolean enabled) { 14359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollingCacheEnabled && !enabled) { 14369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 14379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollingCacheEnabled = enabled; 14399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Enables or disables the type filter window. If enabled, typing when 14439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this view has focus will filter the children to match the users input. 14449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Note that the {@link Adapter} used by this view must implement the 14459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link Filterable} interface. 14469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param textFilterEnabled true to enable type filtering, false otherwise 14489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTextFilterEnabled(boolean textFilterEnabled) { 14529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilterEnabled = textFilterEnabled; 14539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether type filtering is enabled for this view 14579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if type filtering is enabled, false otherwise 14599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled(boolean) 14619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see Filterable 14629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isTextFilterEnabled() { 14659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilterEnabled; 14669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 14699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void getFocusedRect(Rect r) { 14709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getSelectedView(); 14716bdbfcfa77177eb7c8905123f44f2fa5aa0f17b1Romain Guy if (view != null && view.getParent() == this) { 14729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // the focused rectangle of the selected view offset into the 14739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // coordinate space of this view. 14749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view.getFocusedRect(r); 14759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project offsetDescendantRectToMyCoords(view, r); 14769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 14779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // otherwise, just the norm 14789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.getFocusedRect(r); 14799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void useDefaultSelector() { 14839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable( 14849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.drawable.list_selector_background)); 14859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether the content of this view is pinned to, or stacked from, 14899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom edge. 14909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 14919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return true if the content is stacked from the bottom edge, false otherwise 14929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 14939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 14949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean isStackFromBottom() { 14959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mStackFromBottom; 14969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 14979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 14989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 14999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When stack from bottom is set to true, the list fills its content starting from 15009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the bottom of the view. 15019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 15029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param stackFromBottom true to pin the view's content to the bottom edge, 15039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * false to pin the view's content to the top edge 15049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setStackFromBottom(boolean stackFromBottom) { 15069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mStackFromBottom != stackFromBottom) { 15079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mStackFromBottom = stackFromBottom; 15089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayoutIfNecessary(); 15099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void requestLayoutIfNecessary() { 15139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 15149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resetList(); 15159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 15169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 15179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static class SavedState extends BaseSavedState { 15219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId; 15229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long firstId; 15239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewTop; 15249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position; 15259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height; 15269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project String filter; 1527a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell boolean inActionMode; 15282614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell int checkedItemCount; 1529f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell SparseBooleanArray checkState; 153014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell LongSparseArray<Integer> checkIdState; 15319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link AbsListView#onSaveInstanceState()} 15349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState(Parcelable superState) { 15369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(superState); 15379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 15409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Constructor called from {@link #CREATOR} 15419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 15429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private SavedState(Parcel in) { 15439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(in); 15449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedId = in.readLong(); 15459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project firstId = in.readLong(); 15469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project viewTop = in.readInt(); 15479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = in.readInt(); 15489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = in.readInt(); 15499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project filter = in.readString(); 1550a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell inActionMode = in.readByte() != 0; 15512614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell checkedItemCount = in.readInt(); 1552f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell checkState = in.readSparseBooleanArray(); 155343ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = in.readInt(); 155443ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn if (N > 0) { 155514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkIdState = new LongSparseArray<Integer>(); 155643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 155743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final long key = in.readLong(); 155843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int value = in.readInt(); 155943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn checkIdState.put(key, value); 156014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 1561f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 15629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void writeToParcel(Parcel out, int flags) { 15669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.writeToParcel(out, flags); 15679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(selectedId); 15689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeLong(firstId); 15699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(viewTop); 15709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(position); 15719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeInt(height); 15729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project out.writeString(filter); 1573a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell out.writeByte((byte) (inActionMode ? 1 : 0)); 15742614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell out.writeInt(checkedItemCount); 1575f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell out.writeSparseBooleanArray(checkState); 157643ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn final int N = checkIdState != null ? checkIdState.size() : 0; 157743ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(N); 157843ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn for (int i=0; i<N; i++) { 157943ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeLong(checkIdState.keyAt(i)); 158043ee0ab8777632cf171b598153fc2c427586d332Dianne Hackborn out.writeInt(checkIdState.valueAt(i)); 158114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 15829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 15859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public String toString() { 15869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return "AbsListView.SavedState{" 15879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + Integer.toHexString(System.identityHashCode(this)) 15889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " selectedId=" + selectedId 15899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " firstId=" + firstId 15909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " viewTop=" + viewTop 15919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " position=" + position 15929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + " height=" + height 1593f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " filter=" + filter 1594f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell + " checkState=" + checkState + "}"; 15959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 15969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 15979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static final Parcelable.Creator<SavedState> CREATOR 15989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project = new Parcelable.Creator<SavedState>() { 15999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState createFromParcel(Parcel in) { 16009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState(in); 16019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public SavedState[] newArray(int size) { 16049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new SavedState[size]; 16059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project }; 16079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 16109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Parcelable onSaveInstanceState() { 16119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /* 16129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * This doesn't really make sense as the place to dismiss the 1613f993ad5b89a8aa47fcbc7494811f45bb74cb8713Romain Guy * popups, but there don't seem to be any other useful hooks 16149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * that happen early enough to keep from getting complaints 16159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * about having leaked the window. 16169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 16179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 16189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Parcelable superState = super.onSaveInstanceState(); 16209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = new SavedState(superState); 16229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1623e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn if (mPendingSync != null) { 1624e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn // Just keep what we last restored. 1625e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.selectedId = mPendingSync.selectedId; 1626e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.firstId = mPendingSync.firstId; 1627e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.viewTop = mPendingSync.viewTop; 1628e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.position = mPendingSync.position; 1629e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.height = mPendingSync.height; 1630e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.filter = mPendingSync.filter; 1631e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.inActionMode = mPendingSync.inActionMode; 1632e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkedItemCount = mPendingSync.checkedItemCount; 1633e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkState = mPendingSync.checkState; 1634e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn ss.checkIdState = mPendingSync.checkIdState; 1635e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn return ss; 1636e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn } 1637e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn 163899441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn boolean haveChildren = getChildCount() > 0 && mItemCount > 0; 16399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project long selectedId = getSelectedItemId(); 16409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.selectedId = selectedId; 16419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.height = getHeight(); 16429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedId >= 0) { 16449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the selection 16459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = mSelectedTop; 16469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = getSelectedItemPosition(); 16479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16497becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn if (haveChildren && mFirstPosition > 0) { 16507becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // Remember the position of the first child. 16517becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // We only do this if we are not currently at the top of 16527becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // the list, for two reasons: 16537becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (1) The list may be in the process of becoming empty, in 16547becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // which case mItemCount may not be 0, but if we try to 16557becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // ask for any information about position 0 we will crash. 16567becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // (2) Being "at the top" seems like a special case, anyway, 16577becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // and the user wouldn't expect to end up somewhere else when 16587becaeea7b220ab6fbe93e35461c7734032e7af4Dianne Hackborn // they revisit the list even if its content has changed. 16599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(0); 16609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = v.getTop(); 166199441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn int firstPos = mFirstPosition; 166299441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn if (firstPos >= mItemCount) { 166399441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn firstPos = mItemCount - 1; 166499441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn } 166599441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.position = firstPos; 166699441c45e48abd118bd38da6f0844750a710cd33Dianne Hackborn ss.firstId = mAdapter.getItemId(firstPos); 16679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 16689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.viewTop = 0; 16699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.firstId = INVALID_POSITION; 16709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.position = 0; 16719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 16749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = null; 16759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 16769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final EditText textFilter = mTextFilter; 16779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (textFilter != null) { 16789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Editable filterText = textFilter.getText(); 16799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (filterText != null) { 16809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ss.filter = filterText.toString(); 16819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 16849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1685a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell ss.inActionMode = mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && mChoiceActionMode != null; 1686a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 16879a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckStates != null) { 16889a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkState = mCheckStates.clone(); 16899a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16909a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell if (mCheckedIdStates != null) { 169114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final LongSparseArray<Integer> idState = new LongSparseArray<Integer>(); 16929a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell final int count = mCheckedIdStates.size(); 16939a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell for (int i = 0; i < count; i++) { 16949a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell idState.put(mCheckedIdStates.keyAt(i), mCheckedIdStates.valueAt(i)); 16959a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16969a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell ss.checkIdState = idState; 16979a5cc2810bbbcb0eab4579aa4131039820d92101Adam Powell } 16982614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell ss.checkedItemCount = mCheckedItemCount; 1699f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1700335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter != null) { 1701335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen mRemoteAdapter.saveRemoteViewsCache(); 1702335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 1703335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen 17049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return ss; 17059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 17089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onRestoreInstanceState(Parcelable state) { 17099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project SavedState ss = (SavedState) state; 17109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onRestoreInstanceState(ss.getSuperState()); 17129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 17139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncHeight = ss.height; 17159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (ss.selectedId >= 0) { 17179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1718e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.selectedId; 17209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_SELECTED_POSITION; 17239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (ss.firstId >= 0) { 17249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 17259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do this before setting mNeedSync since setNextSelectedPosition looks at mNeedSync 17269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 1727079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 17289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = true; 1729e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = ss; 17309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncRowId = ss.firstId; 17319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = ss.position; 17329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = ss.viewTop; 17339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncMode = SYNC_FIRST_POSITION; 17349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setFilterText(ss.filter); 17379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1738f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkState != null) { 1739f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckStates = ss.checkState; 1740f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1741f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 1742f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (ss.checkIdState != null) { 1743f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mCheckedIdStates = ss.checkIdState; 1744f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 1745f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 17462614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell mCheckedItemCount = ss.checkedItemCount; 17472614c6c1f9fb19af21b901c16c443335bbc9d50bAdam Powell 1748a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell if (ss.inActionMode && mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL && 1749a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mMultiChoiceModeCallback != null) { 1750a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell mChoiceActionMode = startActionMode(mMultiChoiceModeCallback); 1751a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell } 1752a0eeeac82010e03ce8949bf7efed909afdbaf41cAdam Powell 17539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 17549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private boolean acceptFilter() { 1757d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy return mTextFilterEnabled && getAdapter() instanceof Filterable && 1758d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy ((Filterable) getAdapter()).getFilter() != null; 17599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the initial value for the text filter. 17639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param filterText The text to use for the filter. 17640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * 17659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #setTextFilterEnabled 17669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setFilterText(String filterText) { 17689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: Should we check for acceptFilter()? 17699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && !TextUtils.isEmpty(filterText)) { 17709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(false); 17719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This is going to call our listener onTextChanged, but we might not 17729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // be ready to bring up a window yet 17739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(filterText); 17749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setSelection(filterText.length()); 17759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 17769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // if mPopup is non-null, then onTextChanged will do the filtering 17779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 17789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 17799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(filterText); 17809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Set filtered to true so we will display the filter window when our main 17829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window is ready 17839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 17849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataSetObserver.clearSavedState(); 17859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 17899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 17900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy * Returns the list's text filter, if available. 17919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the list's text filter or null if filtering isn't enabled 17929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 17939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public CharSequence getTextFilter() { 17949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTextFilterEnabled && mTextFilter != null) { 17959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTextFilter.getText(); 17969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 17989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 17990a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 18009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onFocusChanged(boolean gainFocus, int direction, Rect previouslyFocusedRect) { 18029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onFocusChanged(gainFocus, direction, previouslyFocusedRect); 18039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (gainFocus && mSelectedPosition < 0 && !isInTouchMode()) { 1804b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell if (!mIsAttached && mAdapter != null) { 1805b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // Data may have changed while we were detached and it's valid 1806b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell // to change focus while detached. Refresh so we don't die. 1807b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mDataChanged = true; 1808b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mOldItemCount = mItemCount; 1809b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mItemCount = mAdapter.getCount(); 1810b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell } 18119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 18129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void requestLayout() { 18179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mBlockLayoutRequests && !mInLayout) { 18189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.requestLayout(); 18199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 18239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The list is empty. Clear everything out. 18249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 18259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void resetList() { 18269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 18279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstPosition = 0; 18289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = false; 1829161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = null; 18309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 1831e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 18329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedPosition = INVALID_POSITION; 18339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOldSelectedRowId = INVALID_ROW_ID; 18349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 18359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 18369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 1837079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 18389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.setEmpty(); 18399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 18409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollExtent() { 18449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 18459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count > 0) { 18469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int extent = count * 100; 18489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View view = getChildAt(0); 18509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent += (top * 100) / height; 18549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project view = getChildAt(count - 1); 18579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = view.getBottom(); 18589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project height = view.getHeight(); 18599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project extent -= ((bottom - getHeight()) * 100) / height; 18619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return extent; 18649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1; 18669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 18719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 18729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollOffset() { 18739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 18749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 18759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition >= 0 && childCount > 0) { 18769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSmoothScrollbarEnabled) { 18779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(0); 18789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = view.getTop(); 18799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int height = view.getHeight(); 18809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (height > 0) { 18810b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return Math.max(firstPosition * 100 - (top * 100) / height + 18820b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell (int)((float)mScrollY / getHeight() * mItemCount * 100), 0); 18839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index; 18869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = mItemCount; 18879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition == 0) { 18889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = 0; 18899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (firstPosition + childCount == count) { 18909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = count; 18919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 18929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project index = firstPosition + childCount / 2; 18939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (int) (firstPosition + childCount * (index / (float) count)); 18959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 18989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 18999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int computeVerticalScrollRange() { 19020b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell int result; 19030b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (mSmoothScrollbarEnabled) { 19040b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = Math.max(mItemCount * 100, 0); 1905637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 1906637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Compensate for overscroll 1907637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell result += Math.abs((int) ((float) mScrollY / getHeight() * mItemCount * 100)); 1908637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 19090b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } else { 19100b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell result = mItemCount; 19110b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 19120b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return result; 19139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getTopFadingEdgeStrength() { 19179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getTopFadingEdgeStrength(); 19199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition > 0) { 19239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = getChildAt(0).getTop(); 19279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return top < mPaddingTop ? (float) -(top - mPaddingTop) / fadeLength : fadeEdge; 19299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected float getBottomFadingEdgeStrength() { 19349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 19359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeEdge = super.getBottomFadingEdgeStrength(); 19369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (count == 0) { 19379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return fadeEdge; 19389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 19399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFirstPosition + count - 1 < mItemCount - 1) { 19409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 1.0f; 19419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = getChildAt(count - 1).getBottom(); 19449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight(); 19459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final float fadeLength = (float) getVerticalFadingEdgeLength(); 19469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return bottom > height - mPaddingBottom ? 19479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project (float) (bottom - height + mPaddingBottom) / fadeLength : fadeEdge; 19489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 19539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector == null) { 19549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project useDefaultSelector(); 19559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 19579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.left = mSelectionLeftPadding + mPaddingLeft; 19589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.top = mSelectionTopPadding + mPaddingTop; 19599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.right = mSelectionRightPadding + mPaddingRight; 19609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listPadding.bottom = mSelectionBottomPadding + mPaddingBottom; 1961da13dbae6fe0619101433ac861da460b8be63a36Adam Powell 1962da13dbae6fe0619101433ac861da460b8be63a36Adam Powell // Check if our previous measured size was at a point where we should scroll later. 1963da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 1964da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int childCount = getChildCount(); 1965ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 1966da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final View lastChild = getChildAt(childCount - 1); 1967da13dbae6fe0619101433ac861da460b8be63a36Adam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 1968ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mForceTranscriptScroll = mFirstPosition + childCount >= mLastHandledItemCount && 1969da13dbae6fe0619101433ac861da460b8be63a36Adam Powell lastBottom <= listBottom; 1970da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 19719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 1973d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 1974d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses should NOT override this method but 1975d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * {@link #layoutChildren()} instead. 1976d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 19779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 19789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onLayout(boolean changed, int l, int t, int r, int b) { 19799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onLayout(changed, l, t, r, b); 19809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = true; 1981f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (changed) { 1982f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell int childCount = getChildCount(); 1983f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < childCount; i++) { 1984f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell getChildAt(i).forceLayout(); 1985f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 1986f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell mRecycler.markChildrenDirty(); 1987f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 19882c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell 19892c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell if (mFastScroller != null && mItemCount != mOldItemCount) { 19902c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell mFastScroller.onItemCountChanged(mOldItemCount, mItemCount); 19912c6196aa557e4eaf09d1ec3ad1347742f7f9f7b5Adam Powell } 1992f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell 19939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 19949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mInLayout = false; 1995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 1996637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mOverscrollMax = (b - t) / OVERSCROLL_LIMIT_DIVISOR; 19979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 19989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 19999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @hide 20019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean setFrame(int left, int top, int right, int bottom) { 20049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean changed = super.setFrame(left, top, right, bottom); 20059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2006d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (changed) { 2007d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // Reposition the popup when the frame has changed. This includes 2008d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // translating the widget, not just changing its dimension. The 2009d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy // filter popup needs to follow the widget. 2010d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy final boolean visible = getWindowVisibility() == View.VISIBLE; 2011d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy if (mFiltered && visible && mPopup != null && mPopup.isShowing()) { 2012d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy positionPopup(); 2013d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy } 20149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return changed; 20179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2019d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy /** 2020d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy * Subclasses must override this method to layout their children. 2021d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy */ 20229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void layoutChildren() { 20239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void updateScrollIndicators() { 20269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollUp != null) { 20279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollUp; 20289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // 0th element is not visible 20299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = mFirstPosition > 0; 20309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or top of 0th element is not visible 20329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollUp) { 20339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 20349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(0); 20359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollUp = child.getTop() < mListPadding.top; 20369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp.setVisibility(canScrollUp ? View.VISIBLE : View.INVISIBLE); 20409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollDown != null) { 20439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean canScrollDown; 20449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = getChildCount(); 20459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Last item is not visible 20479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = (mFirstPosition + count) < mItemCount; 20489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // ... Or bottom of the last element is not visible 20509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!canScrollDown && count > 0) { 20519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(count - 1); 20529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canScrollDown = child.getBottom() > mBottom - mListPadding.bottom; 20539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown.setVisibility(canScrollDown ? View.VISIBLE : View.INVISIBLE); 20569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 20609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @ViewDebug.ExportedProperty 20619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public View getSelectedView() { 20629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mItemCount > 0 && mSelectedPosition >= 0) { 20639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return getChildAt(mSelectedPosition - mFirstPosition); 20649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 20659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 20669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingTop() 20739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The top list padding. 20769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingTop() { 20789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.top; 20799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingBottom() 20859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The bottom list padding. 20889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 20899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingBottom() { 20909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.bottom; 20919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 20929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 20939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 20949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 20959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingLeft() 20979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 20989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 20999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The left list padding. 21009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingLeft() { 21029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.left; 21039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List padding is the maximum of the normal view's padding and the padding of the selector. 21079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.view.View#getPaddingRight() 21099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #getSelector() 21109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The right list padding. 21129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 21139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getListPaddingRight() { 21149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mListPadding.right; 21159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 21189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get a view and have it show the data associated with the specified 21199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * position. This is called when we have already discovered that the view is 21209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * not available for reuse in the recycle bin. The only choices left are 21219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * converting an old view or making a new one. 21229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 21239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to display 212421875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * @param isScrap Array of at least 1 boolean, the first entry will become true if 212521875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy * the returned view was taken from the scrap heap, false if otherwise. 21264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 21279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view displaying the data associated with the specified position 21289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 212921875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy View obtainView(int position, boolean[] isScrap) { 213021875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy isScrap[0] = false; 21319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View scrapView; 21329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2133539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapView = mRecycler.getTransientStateView(position); 2134539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapView != null) { 2135539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return scrapView; 2136539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 2137539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 21389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapView = mRecycler.getScrapView(position); 21399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child; 21419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (scrapView != null) { 21429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, scrapView, this); 21439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 21444213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21454213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21464213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21474213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != scrapView) { 2149079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(scrapView, position); 21509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 215321875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy } else { 2154a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy isScrap[0] = true; 2155a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy child.dispatchFinishTemporaryDetach(); 21569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 21589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child = mAdapter.getView(position, null, this); 21594213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21604213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov if (child.getImportantForAccessibility() == IMPORTANT_FOR_ACCESSIBILITY_AUTO) { 21614213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov child.setImportantForAccessibility(IMPORTANT_FOR_ACCESSIBILITY_YES); 21624213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov } 21634213804541a8b05cd0587b138a2fd9a3b7fd9350Svetoslav Ganov 21649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mCacheColorHint != 0) { 21659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setDrawingCacheBackgroundColor(mCacheColorHint); 21669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2169aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (mAdapterHasStableIds) { 2170aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell final ViewGroup.LayoutParams vlp = child.getLayoutParams(); 2171aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell LayoutParams lp; 2172aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell if (vlp == null) { 2173aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateDefaultLayoutParams(); 2174aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else if (!checkLayoutParams(vlp)) { 2175aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) generateLayoutParams(vlp); 2176aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } else { 2177aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp = (LayoutParams) vlp; 2178aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2179aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell lp.itemId = mAdapter.getItemId(position); 2180aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell child.setLayoutParams(lp); 2181aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 2182aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 2183c1d7e770e123adfa992d013fa294693d077cbc78alanv if (AccessibilityManager.getInstance(mContext).isEnabled()) { 2184c1d7e770e123adfa992d013fa294693d077cbc78alanv if (mAccessibilityDelegate == null) { 2185c1d7e770e123adfa992d013fa294693d077cbc78alanv mAccessibilityDelegate = new ListItemAccessibilityDelegate(); 2186c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2187b72fe7a2635906d6244efedfe302c2c46e564803alanv if (child.getAccessibilityDelegate() == null) { 2188b72fe7a2635906d6244efedfe302c2c46e564803alanv child.setAccessibilityDelegate(mAccessibilityDelegate); 2189b72fe7a2635906d6244efedfe302c2c46e564803alanv } 2190c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2191c1d7e770e123adfa992d013fa294693d077cbc78alanv 21929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return child; 21939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 21949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2195c1d7e770e123adfa992d013fa294693d077cbc78alanv class ListItemAccessibilityDelegate extends AccessibilityDelegate { 2196c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2197c1d7e770e123adfa992d013fa294693d077cbc78alanv public void onInitializeAccessibilityNodeInfo(View host, AccessibilityNodeInfo info) { 2198c1d7e770e123adfa992d013fa294693d077cbc78alanv super.onInitializeAccessibilityNodeInfo(host, info); 2199c1d7e770e123adfa992d013fa294693d077cbc78alanv 2200c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22019c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 22029c3e0e68260fe50456996d75304b73054cbde94aalanv 22039c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22049c3e0e68260fe50456996d75304b73054cbde94aalanv return; 22059c3e0e68260fe50456996d75304b73054cbde94aalanv } 2206c1d7e770e123adfa992d013fa294693d077cbc78alanv 22079c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 2208c1d7e770e123adfa992d013fa294693d077cbc78alanv return; 2209c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2210c1d7e770e123adfa992d013fa294693d077cbc78alanv 22119c3e0e68260fe50456996d75304b73054cbde94aalanv if (position == getSelectedItemPosition()) { 22129c3e0e68260fe50456996d75304b73054cbde94aalanv info.setSelected(true); 22139c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_CLEAR_SELECTION); 22149c3e0e68260fe50456996d75304b73054cbde94aalanv } else { 22159c3e0e68260fe50456996d75304b73054cbde94aalanv info.addAction(AccessibilityNodeInfo.ACTION_SELECT); 22169c3e0e68260fe50456996d75304b73054cbde94aalanv } 22179c3e0e68260fe50456996d75304b73054cbde94aalanv 22189c3e0e68260fe50456996d75304b73054cbde94aalanv if (isClickable()) { 2219c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_CLICK); 2220c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setClickable(true); 2221c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2222c1d7e770e123adfa992d013fa294693d077cbc78alanv 22239c3e0e68260fe50456996d75304b73054cbde94aalanv if (isLongClickable()) { 2224c1d7e770e123adfa992d013fa294693d077cbc78alanv info.addAction(AccessibilityNodeInfo.ACTION_LONG_CLICK); 2225c1d7e770e123adfa992d013fa294693d077cbc78alanv info.setLongClickable(true); 2226c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2227c1d7e770e123adfa992d013fa294693d077cbc78alanv 2228c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2229c1d7e770e123adfa992d013fa294693d077cbc78alanv 2230c1d7e770e123adfa992d013fa294693d077cbc78alanv @Override 2231c1d7e770e123adfa992d013fa294693d077cbc78alanv public boolean performAccessibilityAction(View host, int action, Bundle arguments) { 2232fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (super.performAccessibilityAction(host, action, arguments)) { 2233fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return true; 2234fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2235fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2236c1d7e770e123adfa992d013fa294693d077cbc78alanv final int position = getPositionForView(host); 22379c3e0e68260fe50456996d75304b73054cbde94aalanv final ListAdapter adapter = getAdapter(); 2238c1d7e770e123adfa992d013fa294693d077cbc78alanv 22399c3e0e68260fe50456996d75304b73054cbde94aalanv if ((position == INVALID_POSITION) || (adapter == null)) { 22409c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on invalid items. 2241c1d7e770e123adfa992d013fa294693d077cbc78alanv return false; 2242c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2243c1d7e770e123adfa992d013fa294693d077cbc78alanv 22449c3e0e68260fe50456996d75304b73054cbde94aalanv if (!isEnabled() || !adapter.isEnabled(position)) { 22459c3e0e68260fe50456996d75304b73054cbde94aalanv // Cannot perform actions on disabled items. 2246fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2247fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } 2248fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov 2249c1d7e770e123adfa992d013fa294693d077cbc78alanv final long id = getItemIdAtPosition(position); 2250c1d7e770e123adfa992d013fa294693d077cbc78alanv 2251c1d7e770e123adfa992d013fa294693d077cbc78alanv switch (action) { 22529c3e0e68260fe50456996d75304b73054cbde94aalanv case AccessibilityNodeInfo.ACTION_CLEAR_SELECTION: { 22539c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() == position) { 22549c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(INVALID_POSITION); 22559c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22569c3e0e68260fe50456996d75304b73054cbde94aalanv } 22579c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2258fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_SELECT: { 22599c3e0e68260fe50456996d75304b73054cbde94aalanv if (getSelectedItemPosition() != position) { 22609c3e0e68260fe50456996d75304b73054cbde94aalanv setSelection(position); 22619c3e0e68260fe50456996d75304b73054cbde94aalanv return true; 22629c3e0e68260fe50456996d75304b73054cbde94aalanv } 22639c3e0e68260fe50456996d75304b73054cbde94aalanv } return false; 2264fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_CLICK: { 2265fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isClickable()) { 2266c1d7e770e123adfa992d013fa294693d077cbc78alanv return performItemClick(host, position, id); 2267c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2268fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2269fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov case AccessibilityNodeInfo.ACTION_LONG_CLICK: { 2270fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov if (isLongClickable()) { 2271c1d7e770e123adfa992d013fa294693d077cbc78alanv return performLongPress(host, position, id); 2272c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2273fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov } return false; 2274c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2275c1d7e770e123adfa992d013fa294693d077cbc78alanv 2276fb1e80a247221ee7e8f5c5deba04812021d9d07eSvetoslav Ganov return false; 2277c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2278c1d7e770e123adfa992d013fa294693d077cbc78alanv } 2279c1d7e770e123adfa992d013fa294693d077cbc78alanv 2280079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void positionSelector(int position, View sel) { 2281079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (position != INVALID_POSITION) { 2282079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = position; 2283079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2284079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 22859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect selectorRect = mSelectorRect; 22869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.set(sel.getLeft(), sel.getTop(), sel.getRight(), sel.getBottom()); 2287e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (sel instanceof SelectionBoundsAdjuster) { 2288e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn ((SelectionBoundsAdjuster)sel).adjustListItemSelectionBounds(selectorRect); 2289e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 22909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project positionSelector(selectorRect.left, selectorRect.top, selectorRect.right, 22919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectorRect.bottom); 22929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 22939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean isChildViewEnabled = mIsChildViewEnabled; 22949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sel.isEnabled() != isChildViewEnabled) { 22959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mIsChildViewEnabled = !isChildViewEnabled; 2296a79f4b7df9d6d80b9371ba289040a60fa93bb87cJason Bayer if (getSelectedItemPosition() != INVALID_POSITION) { 2297079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn refreshDrawableState(); 2298079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 22999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void positionSelector(int l, int t, int r, int b) { 23039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectorRect.set(l - mSelectionLeftPadding, t - mSelectionTopPadding, r 23049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + mSelectionRightPadding, b + mSelectionBottomPadding); 23059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 23089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchDraw(Canvas canvas) { 23099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int saveCount = 0; 23109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean clipToPadding = (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK; 23119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project saveCount = canvas.save(); 23139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollX = mScrollX; 23149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrollY = mScrollY; 23159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.clipRect(scrollX + mPaddingLeft, scrollY + mPaddingTop, 23169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollX + mRight - mLeft - mPaddingRight, 23179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrollY + mBottom - mTop - mPaddingBottom); 23189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags &= ~CLIP_TO_PADDING_MASK; 23199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean drawSelectorOnTop = mDrawSelectorOnTop; 23229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!drawSelectorOnTop) { 23239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.dispatchDraw(canvas); 23279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (drawSelectorOnTop) { 23299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project drawSelector(canvas); 23309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (clipToPadding) { 23339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project canvas.restoreToCount(saveCount); 23349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mGroupFlags |= CLIP_TO_PADDING_MASK; 23359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 233920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected boolean isPaddingOffsetRequired() { 234020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) != CLIP_TO_PADDING_MASK; 234120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 234220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 234320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 234420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getLeftPaddingOffset() { 234520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingLeft; 234620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 234720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 234820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 234920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getTopPaddingOffset() { 235020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : -mPaddingTop; 235120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 235220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 235320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 235420232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getRightPaddingOffset() { 235520232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingRight; 235620232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 235720232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 235820232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 235920232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell protected int getBottomPaddingOffset() { 236020232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell return (mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK ? 0 : mPaddingBottom; 236120232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell } 236220232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell 236320232d0f7ce2220df72dd78bed052f6b4a643f10Adam Powell @Override 23649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onSizeChanged(int w, int h, int oldw, int oldh) { 23659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getChildCount() > 0) { 23669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 23679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 23689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2369d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy 23709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 23719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFastScroller.onSizeChanged(w, h, oldw, oldh); 23729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the current touch mode requires that we draw the selector in the pressed 23779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * state. 23789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean touchModeDrawsInPressedState() { 23809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME use isPressed for this 23819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 23829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 23839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 23849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 23859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 23869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 23879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 23899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 23909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 23919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates whether this view is in a state where the selector should be drawn. This will 23929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * happen if we have focus but are not in touch mode, or we are in the middle of displaying 23939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the pressed state for an item. 23949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 23959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the selector should be shown 23969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 23979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean shouldShowSelector() { 23989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return (hasFocus() && !isInTouchMode()) || touchModeDrawsInPressedState(); 23999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void drawSelector(Canvas canvas) { 2402079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (!mSelectorRect.isEmpty()) { 24039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Drawable selector = mSelector; 24049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.setBounds(mSelectorRect); 24059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selector.draw(canvas); 24069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Controls whether the selection highlight drawable should be drawn on top of the item or 24119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * behind it. 24129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param onTop If true, the selector will be drawn on the item it is highlighting. The default 24149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is false. 24159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_drawSelectorOnTop 24179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setDrawSelectorOnTop(boolean onTop) { 24199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDrawSelectorOnTop = onTop; 24209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Set a Drawable that should be used to highlight the currently selected item. 24249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param resID A Drawable resource to use as the selection highlight. 24269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @attr ref android.R.styleable#AbsListView_listSelector 24289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(int resID) { 24309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelector(getResources().getDrawable(resID)); 24319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setSelector(Drawable sel) { 24349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 24359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector.setCallback(null); 24369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project unscheduleDrawable(mSelector); 24379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelector = sel; 24399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect padding = new Rect(); 24409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.getPadding(padding); 24419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionLeftPadding = padding.left; 24429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionTopPadding = padding.top; 24439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionRightPadding = padding.right; 24449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectionBottomPadding = padding.bottom; 24459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sel.setCallback(this); 2446079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 24479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the selector {@link android.graphics.drawable.Drawable} that is used to draw the 24519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * selection in the list. 24529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 24539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the drawable used to display the selector 24549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public Drawable getSelector() { 24569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector; 24579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 24609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the selector state to "pressed" and posts a CheckForKeyLongPress to see if 24619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * this is a long press. 24629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 24639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void keyPressed() { 2464df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (!isEnabled() || !isClickable()) { 2465df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return; 2466df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2467df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 24689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable selector = mSelector; 24699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect selectorRect = mSelectorRect; 24709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selector != null && (isFocused() || touchModeDrawsInPressedState()) 2471079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn && !selectorRect.isEmpty()) { 24729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(mSelectedPosition - mFirstPosition); 24749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2475ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v != null) { 2476ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project if (v.hasFocusable()) return; 2477ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project v.setPressed(true); 2478ba87e3e6c985e7175152993b5efcc7dd2f0e1c93The Android Open Source Project } 24799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 24809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 24819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 24829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = selector.getCurrent(); 24839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 24849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 2485df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ((TransitionDrawable) d).startTransition( 2486df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy ViewConfiguration.getLongPressTimeout()); 24879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 24889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 24899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable && !mDataChanged) { 24929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForKeyLongPress == null) { 24939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress = new CheckForKeyLongPress(); 24949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForKeyLongPress.rememberWindowAttachCount(); 24969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForKeyLongPress, ViewConfiguration.getLongPressTimeout()); 24979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 24999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setScrollIndicators(View up, View down) { 25029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollUp = up; 25039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollDown = down; 25049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2506079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void updateSelectorState() { 2507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (mSelector != null) { 2508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (shouldShowSelector()) { 2509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(getDrawableState()); 2510079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 2511079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelector.setState(StateSet.NOTHING); 2512079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2513079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2514079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 2515079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 25169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void drawableStateChanged() { 25189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.drawableStateChanged(); 2519079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 25209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected int[] onCreateDrawableState(int extraSpace) { 25249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If the child view is enabled then do the default behavior. 25259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mIsChildViewEnabled) { 25269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Common case 25279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onCreateDrawableState(extraSpace); 25289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The selector uses this View's drawable state. The selected child view 25319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // is disabled, so we need to remove the enabled state from the drawable 25329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // states. 25339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int enabledState = ENABLED_STATE_SET[0]; 25349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we don't have any extra space, it will return one of the static state arrays, 25369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // and clearing the enabled state on those arrays is a bad thing! If we specify 25379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // we need extra space, it will create+copy into a new array that safely mutable. 25389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int[] state = super.onCreateDrawableState(extraSpace + 1); 25399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int enabledPos = -1; 25409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = state.length - 1; i >= 0; i--) { 25419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (state[i] == enabledState) { 25429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project enabledPos = i; 25439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 25449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the enabled state 25489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (enabledPos >= 0) { 25499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project System.arraycopy(state, enabledPos + 1, state, enabledPos, 25509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project state.length - enabledPos - 1); 25519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25520a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 25539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return state; 25549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean verifyDrawable(Drawable dr) { 25589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mSelector == dr || super.verifyDrawable(dr); 25599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2562e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn public void jumpDrawablesToCurrentState() { 2563e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn super.jumpDrawablesToCurrentState(); 2564e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn if (mSelector != null) mSelector.jumpToCurrentState(); 2565e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn } 2566e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn 2567e213677037f836529efcc0ac201fc61dd95481c5Dianne Hackborn @Override 25689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onAttachedToWindow() { 25699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onAttachedToWindow(); 25709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 25720e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnTouchModeChangeListener(this); 25730e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null && !mGlobalLayoutListenerAddedFilter) { 25740e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.addOnGlobalLayoutListener(this); 25759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 257782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null && mDataSetObserver == null) { 257882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = new AdapterDataSetObserver(); 257982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.registerDataSetObserver(mDataSetObserver); 25806a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell 25816a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell // Data may have changed while we were detached. Refresh. 25826a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mDataChanged = true; 25836a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mOldItemCount = mItemCount; 25846a0d09944b550b15dce6ead35917e80205cbf09bAdam Powell mItemCount = mAdapter.getCount(); 258582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 2586b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = true; 25879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 25889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 25909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void onDetachedFromWindow() { 25919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onDetachedFromWindow(); 25929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 25931f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy // Dismiss the popup in case onSaveInstanceState() was not invoked 25941f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy dismissPopup(); 25951f7f3c336a767802a0cada789f6b2055f45911dcRomain Guy 259621875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy // Detach any view left in the scrap heap 259721875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy mRecycler.clear(); 259821875052adddf2b52bc57fea62bf097b8aa04cbfRomain Guy 25999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ViewTreeObserver treeObserver = getViewTreeObserver(); 26000e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne treeObserver.removeOnTouchModeChangeListener(this); 26010e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne if (mTextFilterEnabled && mPopup != null) { 26029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy treeObserver.removeOnGlobalLayoutListener(this); 26030e7d652dbd7cc6415685bece745a752da39179c6Gilles Debunne mGlobalLayoutListenerAddedFilter = false; 26049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 260582afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy 260682afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy if (mAdapter != null) { 260782afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mAdapter.unregisterDataSetObserver(mDataSetObserver); 260882afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy mDataSetObserver = null; 260982afc7b32b5a22fe5a0f1a98e8fd0873a4b7f9a1Romain Guy } 26101cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26111cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 26121cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 26131cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 26141cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 26151cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 26161cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan != null) { 26171cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan.finish(); 26181cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = null; 26191cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 2620d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2621d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mFlingRunnable != null) { 2622d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mFlingRunnable); 2623d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2624d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2625d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPositionScroller != null) { 26264032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 2627d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2628d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2629d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mClearScrollingCache != null) { 2630d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mClearScrollingCache); 2631d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2632d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2633d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mPerformClick != null) { 2634d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mPerformClick); 2635d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2636d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn 2637d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 2638d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 2639d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = null; 2640d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 2641b3750133db256ffa5956c8836bc86c3c22918cb1Adam Powell mIsAttached = false; 26429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 26459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onWindowFocusChanged(boolean hasWindowFocus) { 26469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.onWindowFocusChanged(hasWindowFocus); 26479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int touchMode = isInTouchMode() ? TOUCH_MODE_ON : TOUCH_MODE_OFF; 26499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!hasWindowFocus) { 26519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(false); 2652670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner if (mFlingRunnable != null) { 2653670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner removeCallbacks(mFlingRunnable); 2654670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // let the fling runnable report it's new state which 2655670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner // should be idle 2656670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner mFlingRunnable.endFling(); 26574032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 26584032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 26594032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 2660458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mScrollY != 0) { 2661458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollY = 0; 26620fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 2663637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 2664458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invalidate(); 2665458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 2666670dd819425b44ab4cb7565a322fd21ab6e811f5Mark Wagner } 26679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Always hide the type filter 26689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 26699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the last selected element 26729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mSelectedPosition; 26739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 267597566043afdb714fd4eea6bb22898964e95f16bcAdam Powell if (mFiltered && !mPopupHidden) { 26769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the type filter only if a filter is in effect 26779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 26789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we changed touch mode since the last time we had focus 26819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode != mLastTouchMode && mLastTouchMode != TOUCH_MODE_UNKNOWN) { 26829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in trackball mode, we bring the selection back 26839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (touchMode == TOUCH_MODE_OFF) { 26849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // This will trigger a layout 26859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 26869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we come back in touch mode, then we want to hide the selector 26889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 26899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 26909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 26919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 26929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastTouchMode = touchMode; 26979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 26989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 26999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the ContextMenuInfo returned from {@link #getContextMenuInfo()}. This 27019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * methods knows the view, position and ID of the item that received the 27029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * long press. 27039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view The view that received the long press. 27059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position of the item that received the long press. 27069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param id The ID of the item that received the long press. 27079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The extra information that should be returned by 27089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #getContextMenuInfo()}. 27099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ContextMenuInfo createContextMenuInfo(View view, int position, long id) { 27119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AdapterContextMenuInfo(view, position, id); 27129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 27159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A base class for Runnables that will check that their view is still attached to 27169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the original window as when the Runnable was created. 27179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 27189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 27199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class WindowRunnnable { 27209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mOriginalAttachCount; 27210a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void rememberWindowAttachCount() { 27239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mOriginalAttachCount = getWindowAttachCount(); 27249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27250a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean sameWindow() { 27279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return hasWindowFocus() && getWindowAttachCount() == mOriginalAttachCount; 27289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27300a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class PerformClick extends WindowRunnnable implements Runnable { 27329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int mClickMotionPosition; 27339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // The data has changed since we posted this action in the event queue, 27369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // bail out before bad things happen 27379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mDataChanged) return; 27389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2739005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final ListAdapter adapter = mAdapter; 2740005c0a445e32dfbf18bf93d209da857604925a58Adam Powell final int motionPosition = mClickMotionPosition; 2741005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (adapter != null && mItemCount > 0 && 2742005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition != INVALID_POSITION && 2743005c0a445e32dfbf18bf93d209da857604925a58Adam Powell motionPosition < adapter.getCount() && sameWindow()) { 27447890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy final View view = getChildAt(motionPosition - mFirstPosition); 27457890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // If there is no view, something bad happened (the view scrolled off the 27467890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy // screen, etc.) and we should cancel the click 27477890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy if (view != null) { 27487890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy performItemClick(view, motionPosition, adapter.getItemId(motionPosition)); 27497890fe2da4719bf72b4fbcbef20a555d5fbd94bbRomain Guy } 27509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForLongPress extends WindowRunnnable implements Runnable { 27559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 27579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 27589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null) { 27599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = mMotionPosition; 27609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(mMotionPosition); 27619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27630a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy if (sameWindow() && !mDataChanged) { 27649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(child, longPressPosition, longPressId); 27659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 27689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 27709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 27729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27760a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 27779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class CheckForKeyLongPress extends WindowRunnnable implements Runnable { 27789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 27799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isPressed() && mSelectedPosition >= 0) { 27809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = mSelectedPosition - mFirstPosition; 27819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v = getChildAt(index); 27829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 27839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 27849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 27859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (sameWindow()) { 27869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = performLongPress(v, mSelectedPosition, mSelectedRowId); 27879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 27899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v.setPressed(false); 27919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 27939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 27949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (v != null) v.setPressed(false); 27959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 27999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28008350f7dbc3a62211b2891f35911e4073d24c4cc5Adam Powell boolean performLongPress(final View child, 28019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition, final long longPressId) { 2802f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // CHOICE_MODE_MULTIPLE_MODAL takes over long press. 2803f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mChoiceMode == CHOICE_MODE_MULTIPLE_MODAL) { 28041e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell if (mChoiceActionMode == null && 28051e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell (mChoiceActionMode = startActionMode(mMultiChoiceModeCallback)) != null) { 2806f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setItemChecked(longPressPosition, true); 28071e83b3e6ab69456db5d308c12e367a5d7166610dAdam Powell performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 2808f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 2809f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 2810f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 28119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2812f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell boolean handled = false; 28139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, child, 28159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo(child, longPressPosition, longPressId); 28199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(AbsListView.this); 28209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handled) { 28229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performHapticFeedback(HapticFeedbackConstants.LONG_PRESS); 28239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ContextMenuInfo getContextMenuInfo() { 28299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mContextMenuInfo; 28309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 2832fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown /** @hide */ 2833fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown @Override 2834fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown public boolean showContextMenu(float x, float y, int metaState) { 2835fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final int position = pointToPosition((int)x, (int)y); 2836fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (position != INVALID_POSITION) { 2837fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown final long id = mAdapter.getItemId(position); 2838fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown View child = getChildAt(position - mFirstPosition); 2839fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (child != null) { 2840fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown mContextMenuInfo = createContextMenuInfo(child, position, id); 2841fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenuForChild(AbsListView.this); 2842fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2843fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2844fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown return super.showContextMenu(x, y, metaState); 2845fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 2846fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 28479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 28489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean showContextMenuForChild(View originalView) { 28499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressPosition = getPositionForView(originalView); 28509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longPressPosition >= 0) { 28519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final long longPressId = mAdapter.getItemId(longPressPosition); 28529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 28539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnItemLongClickListener != null) { 28559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mOnItemLongClickListener.onItemLongClick(AbsListView.this, originalView, 28569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!handled) { 28599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mContextMenuInfo = createContextMenuInfo( 28609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getChildAt(longPressPosition - mFirstPosition), 28619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project longPressPosition, longPressId); 28629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = super.showContextMenuForChild(originalView); 28639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 28669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 28689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 28709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 2871df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy public boolean onKeyDown(int keyCode, KeyEvent event) { 2872df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy return false; 2873df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy } 2874df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy 2875df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy @Override 28769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onKeyUp(int keyCode, KeyEvent event) { 28779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 28789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 28799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 2880dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 2881dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return true; 2882dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 2883df01607380c81e26c1c90129aa22b2e1118e2b71Romain Guy if (isClickable() && isPressed() && 2884dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy mSelectedPosition >= 0 && mAdapter != null && 28859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition < mAdapter.getCount()) { 2886dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 28879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View view = getChildAt(mSelectedPosition - mFirstPosition); 288845b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy if (view != null) { 288945b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy performItemClick(view, mSelectedPosition, mSelectedRowId); 289045b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy view.setPressed(false); 289145b3dcd07ef58164484e3648ec0ddc8fdba8e5d1Romain Guy } 28929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 28939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 28949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 2895dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy break; 28969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return super.onKeyUp(keyCode, event); 28989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 28999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 29019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void dispatchSetPressed(boolean pressed) { 29029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't dispatch setPressed to our children. We call setPressed on ourselves to 29039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // get the selector in the right state, but we don't want to press each child. 29049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a position in the list. 29089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The position of the item which contains the specified point, or 29129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #INVALID_POSITION} if the point does not intersect an item. 29139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int pointToPosition(int x, int y) { 29159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Rect frame = mTouchFrame; 29169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame == null) { 29179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchFrame = new Rect(); 29189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project frame = mTouchFrame; 29199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 29229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = count - 1; i >= 0; i--) { 29239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 29249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child.getVisibility() == View.VISIBLE) { 29259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.getHitRect(frame); 29269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (frame.contains(x, y)) { 29279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFirstPosition + i; 29289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_POSITION; 29329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 29369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Maps a point to a the rowId of the item which intersects that point. 29379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 29389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param x X in local coordinate 29399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Y in local coordinate 29409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The rowId of the item which contains the specified point, or {@link #INVALID_ROW_ID} 29419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * if the point does not intersect an item. 29429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 29439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public long pointToRowId(int x, int y) { 29449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = pointToPosition(x, y); 29459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position >= 0) { 29469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mAdapter.getItemId(position); 29479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return INVALID_ROW_ID; 29499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final class CheckForTap implements Runnable { 29529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 29539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN) { 29549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_TAP; 29559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(mMotionPosition - mFirstPosition); 29569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (child != null && !child.hasFocusable()) { 29579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 29589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 29609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 29619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 2962079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn layoutChildren(); 2963079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 2964e0fd2eb2f143b2776b5e1a4e88144fddadd149b1Adam Powell refreshDrawableState(); 29659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int longPressTimeout = ViewConfiguration.getLongPressTimeout(); 29679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean longClickable = isLongClickable(); 29689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 29709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 29719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 29729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).startTransition(longPressTimeout); 29749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ((TransitionDrawable) d).resetTransition(); 29769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 29809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (longClickable) { 29819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPendingCheckForLongPress == null) { 29829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress = new CheckForLongPress(); 29839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForLongPress.rememberWindowAttachCount(); 29859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project postDelayed(mPendingCheckForLongPress, longPressTimeout); 29869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DONE_WAITING; 29889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 29900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy mTouchMode = TOUCH_MODE_DONE_WAITING; 29919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 29969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 299778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private boolean startScrollIfNeeded(int y) { 29989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 29999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 300078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = y - mMotionY; 30019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int distance = Math.abs(deltaY); 3002637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final boolean overscroll = mScrollY != 0; 3003637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscroll || distance > mTouchSlop) { 30049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createScrollingCache(); 300578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscroll) { 300678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 300778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 300878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 300978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 301078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = deltaY > 0 ? mTouchSlop : -mTouchSlop; 301178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 30129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 30139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Handler should not be null unless the AbsListView is not attached to a 30149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // window, which would make it very hard to scroll it... but the monkeys 30159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // say it's possible. 30169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 30179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 30189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 30209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View motionView = getChildAt(mMotionPosition - mFirstPosition); 30219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (motionView != null) { 30229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project motionView.setPressed(false); 30239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 30259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Time to start stealing events! Once we've stolen them, don't let anyone 30269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // steal from us 302713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka final ViewParent parent = getParent(); 302813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (parent != null) { 302913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka parent.requestDisallowInterceptTouchEvent(true); 303013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 303178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 30329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 30339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 30359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 30369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 30379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 303878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown private void scrollIfNeeded(int y) { 303978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int rawDeltaY = y - mMotionY; 304078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int deltaY = rawDeltaY - mMotionCorrection; 304178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int incrementalDeltaY = mLastY != Integer.MIN_VALUE ? y - mLastY : deltaY; 304278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 304378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mTouchMode == TOUCH_MODE_SCROLL) { 304478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (PROFILE_SCROLLING) { 304578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mScrollProfilingStarted) { 304678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Debug.startMethodTracing("AbsListViewScroll"); 304778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollProfilingStarted = true; 304878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 304978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mScrollStrictSpan == null) { 305278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If it's non-null, we're already in a scroll. 305378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mScrollStrictSpan = StrictMode.enterCriticalSpan("AbsListView-scroll"); 305478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 305578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 305678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 305778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We may be here after stopping a fling and continuing to scroll. 305878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If so, we haven't disallowed intercepting touch events yet. 305978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Make sure that we do so in case we're in a parent that can intercept. 306078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((mGroupFlags & FLAG_DISALLOW_INTERCEPT) == 0 && 306178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown Math.abs(rawDeltaY) > mTouchSlop) { 306278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final ViewParent parent = getParent(); 306378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (parent != null) { 306478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown parent.requestDisallowInterceptTouchEvent(true); 306578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 306778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 306878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionIndex; 306978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mMotionPosition >= 0) { 307078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = mMotionPosition - mFirstPosition; 307178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 307278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // If we don't have a motion position that we can reliably track, 307378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // pick something in the middle to make a best guess at things below. 307478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionIndex = getChildCount() / 2; 307578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 307678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 307778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int motionViewPrevTop = 0; 307878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = this.getChildAt(motionIndex); 307978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 308078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionViewPrevTop = motionView.getTop(); 308178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // No need to do all this work if we're not going to move anyway 308478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown boolean atEdge = false; 308578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 308678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown atEdge = trackMotionScroll(deltaY, incrementalDeltaY); 308778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 308878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 308978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check to see if we have bumped into the scroll limit 309078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown motionView = this.getChildAt(motionIndex); 309178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (motionView != null) { 309278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Check if the top of the motion view is where it is 309378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // supposed to be 309478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionViewRealTop = motionView.getTop(); 309578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (atEdge) { 309678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Apply overscroll 309778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 309878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overscroll = -incrementalDeltaY - 309978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (motionViewRealTop - motionViewPrevTop); 310078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overscroll, 0, mScrollY, 0, 0, 310178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 310278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (Math.abs(mOverscrollDistance) == Math.abs(mScrollY)) { 310378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Don't allow overfling if we're at the edge. 310478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mVelocityTracker != null) { 310578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mVelocityTracker.clear(); 310678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 310878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 310978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 311078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 311178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 311278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 311378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = 0; // Reset when entering overscroll. 311478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_OVERSCROLL; 311578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 311678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overscroll / getHeight()); 311778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 311878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 311978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3120a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 312178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 312278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overscroll / getHeight()); 312378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 312478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 312578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3126a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 312778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 312978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 313178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 313378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 313478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (mTouchMode == TOUCH_MODE_OVERSCROLL) { 313578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (y != mLastY) { 313678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int oldScroll = mScrollY; 313778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int newScroll = oldScroll - incrementalDeltaY; 313878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int newDirection = y > mLastY ? 1 : -1; 313978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (mDirection == 0) { 314178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 314278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 314378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 314478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown int overScrollDistance = -incrementalDeltaY; 314578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if ((newScroll < 0 && oldScroll >= 0) || (newScroll > 0 && oldScroll <= 0)) { 314678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollDistance = -oldScroll; 314778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY += overScrollDistance; 314878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else { 314978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown incrementalDeltaY = 0; 315078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 315178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 315278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overScrollDistance != 0) { 315378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown overScrollBy(0, overScrollDistance, 0, mScrollY, 0, 0, 315478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 0, mOverscrollDistance, true); 315578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int overscrollMode = getOverScrollMode(); 315678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (overscrollMode == OVER_SCROLL_ALWAYS || 315778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && 315878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown !contentFits())) { 315978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (rawDeltaY > 0) { 316078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onPull((float) overScrollDistance / getHeight()); 316178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowBottom.isFinished()) { 316278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onRelease(); 316378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3164a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 316578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } else if (rawDeltaY < 0) { 316678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowBottom.onPull((float) overScrollDistance / getHeight()); 316778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (!mEdgeGlowTop.isFinished()) { 316878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mEdgeGlowTop.onRelease(); 316978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 3170a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 317178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 317478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 317578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (incrementalDeltaY != 0) { 317678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // Coming back to 'real' list scrolling 31779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollY != 0) { 31789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mScrollY = 0; 31799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidateParentIfNeeded(); 318078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 318178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 31829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy trackMotionScroll(incrementalDeltaY, incrementalDeltaY); 31839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 318478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mTouchMode = TOUCH_MODE_SCROLL; 318578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 318678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // We did not scroll the full amount. Treat this essentially like the 318778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown // start of a new touch scroll 318878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown final int motionPosition = findClosestMotionRow(y); 318978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 319078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionCorrection = 0; 319178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown View motionView = getChildAt(motionPosition - mFirstPosition); 319278f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionViewOriginalTop = motionView != null ? motionView.getTop() : 0; 319378f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionY = y; 319478f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mMotionPosition = motionPosition; 319578f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mLastY = y; 319778f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown mDirection = newDirection; 319878f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 319978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown } 320178f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown 32029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTouchModeChanged(boolean isInTouchMode) { 32039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode) { 32049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Get rid of the selection when we enter touch mode 32059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project hideSelector(); 32069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Layout, but only if we already have done so previously. 32079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // (Otherwise may clobber a LAYOUT_SYNC layout that was requested to restore 32089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // state.) 32099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getHeight() > 0 && getChildCount() > 0) { 32109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We do not lose focus initiating a touch (since AbsListView is focusable in 32119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // touch mode). Force an initial layout to get rid of the selection. 32129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 32139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32141e20946aa34372de5585e2a8ce3b73906a2d828bJeff Brown updateSelectorState(); 3215637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3216637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int touchMode = mTouchMode; 3217637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERSCROLL || touchMode == TOUCH_MODE_OVERFLING) { 3218637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable != null) { 3219637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 3220637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32214032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32224032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32234032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3224637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3225637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScrollY != 0) { 3226637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScrollY = 0; 32270fd89bf7221431260883cee4597e2db942d799a0Romain Guy invalidateParentCaches(); 3228637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell finishGlows(); 3229637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 3230637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3231637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 32349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 32369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onTouchEvent(MotionEvent ev) { 3237dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy if (!isEnabled()) { 3238dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // A disabled view that is clickable still consumes the touch 3239dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy // events, it just doesn't respond to them. 3240dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy return isClickable() || isLongClickable(); 3241dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy } 3242dd753ae6115fdcb389b5abd8320245228b2e1d2dRomain Guy 32431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 32441fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 32451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 32461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 324728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 324828048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 324928048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 325028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 325128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 325228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 325328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 325428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 32559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 32569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onTouchEvent(ev); 32579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 32589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 32590a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy } 32609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 326182f3495b146b267f3786997752cef25310176349Romain Guy 32629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int action = ev.getAction(); 32639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 32659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 326613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 32679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mVelocityTracker.addMovement(ev); 32689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 32694cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 32709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 3271637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3272637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 3273637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.endFling(); 32744032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 32754032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 32764032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3277637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERSCROLL; 3278044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mMotionX = (int) ev.getX(); 3279637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = mLastY = (int) ev.getY(); 3280637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3281637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3282044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mDirection = 0; 3283637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3284637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 32859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3286637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: { 3287637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mActivePointerId = ev.getPointerId(0); 3288637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int x = (int) ev.getX(); 3289637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = (int) ev.getY(); 3290637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int motionPosition = pointToPosition(x, y); 3291637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mDataChanged) { 3292637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if ((mTouchMode != TOUCH_MODE_FLING) && (motionPosition >= 0) 3293637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell && (getAdapter().isEnabled(motionPosition))) { 32940a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // User clicked on an actual view (and was not stopping a fling). 32950a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // It might be a click or a scroll. Assume it is a click until 32960a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne // proven otherwise 3297637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_DOWN; 3298637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // FIXME Debounce 3299637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mPendingCheckForTap == null) { 3300637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mPendingCheckForTap = new CheckForTap(); 3301637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3302637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 3303637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3304637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mTouchMode == TOUCH_MODE_FLING) { 3305637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Stopped a fling. It is a scroll. 3306637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell createScrollingCache(); 3307637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_SCROLL; 3308637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3309637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionPosition = findMotionRow(y); 3310637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.flywheelTouch(); 3311637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33129d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell } 331379ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 33149d32d24dbd8a015c9d5c44ed4901d5a666eb8e7fAdam Powell 3315637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionPosition >= 0) { 3316637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Remember where the motion event started 3317637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell v = getChildAt(motionPosition - mFirstPosition); 3318637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = v.getTop(); 3319637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3320637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionX = x; 3321637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionY = y; 3322637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = motionPosition; 3323637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastY = Integer.MIN_VALUE; 3324637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 3325637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 33269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3327fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown 3328fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (performButtonActionOnTouchDown(ev)) { 3329fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown if (mTouchMode == TOUCH_MODE_DOWN) { 3330fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown removeCallbacks(mPendingCheckForTap); 3331fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 3332fe9f8ab03a63b1037f07dd85799fbea80ec6adaaJeff Brown } 33339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 33372585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 33382585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 33392585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 33402585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 33412585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 33424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 33436f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33446f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell if (mDataChanged) { 33456f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // Re-sync everything if data has been changed 33466f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell // since the scroll operation can query the adapter. 33476f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell layoutChildren(); 33486f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell } 33496f663c1a3c4d4a23bc71302add27b3d03d7d507bAdam Powell 33509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Check if we have moved far enough that it looks more like a 33559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // scroll than a tap 335678f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown startScrollIfNeeded(y); 33579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 3359637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 336078f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown scrollIfNeeded(y); 3361637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 33629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 33649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 33679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 33689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 33699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_TAP: 33709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DONE_WAITING: 33719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int motionPosition = mMotionPosition; 33729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(motionPosition - mFirstPosition); 3373498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3374498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final float x = ev.getX(); 3375498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell final boolean inList = x > mListPadding.left && x < getWidth() - mListPadding.right; 3376498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell 3377498e43dd8e0314e1147321bef57d4fdd82cb5284Adam Powell if (child != null && !child.hasFocusable() && inList) { 33789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode != TOUCH_MODE_DOWN) { 33799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 33809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPerformClick == null) { 33839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPerformClick = new PerformClick(); 33849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final AbsListView.PerformClick performClick = mPerformClick; 33879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.mClickMotionPosition = motionPosition; 33889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project performClick.rememberWindowAttachCount(); 33899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = motionPosition; 33919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 33929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mTouchMode == TOUCH_MODE_DOWN || mTouchMode == TOUCH_MODE_TAP) { 33939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 33949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 33959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mTouchMode == TOUCH_MODE_DOWN ? 33969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPendingCheckForTap : mPendingCheckForLongPress); 33979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 33989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_NORMAL; 3399005c0a445e32dfbf18bf93d209da857604925a58Adam Powell if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3400005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_TAP; 34019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(mMotionPosition); 34029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project layoutChildren(); 34039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(true); 3404079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mMotionPosition, child); 34059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(true); 34069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelector != null) { 34079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Drawable d = mSelector.getCurrent(); 34089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (d != null && d instanceof TransitionDrawable) { 34096198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy ((TransitionDrawable) d).resetTransition(); 34109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3412d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn if (mTouchModeReset != null) { 3413d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn removeCallbacks(mTouchModeReset); 3414d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn } 3415d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn mTouchModeReset = new Runnable() { 3416d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn @Override 34179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 3418079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mTouchMode = TOUCH_MODE_REST; 34199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.setPressed(false); 34209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 34219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mDataChanged) { 3422d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 34239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3425d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn }; 3426d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn postDelayed(mTouchModeReset, 3427d173fa3b1cb8e4294aba7564c0171894be6c3c24Dianne Hackborn ViewConfiguration.getPressedStateDuration()); 3428005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else { 3429005c0a445e32dfbf18bf93d209da857604925a58Adam Powell mTouchMode = TOUCH_MODE_REST; 3430079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 3433005c0a445e32dfbf18bf93d209da857604925a58Adam Powell } else if (!mDataChanged && mAdapter.isEnabled(motionPosition)) { 3434d0b8365fcbe891b0bb3b54d345337f60c292d09eRomain Guy performClick.run(); 34359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 3438079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn updateSelectorState(); 34399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 34409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_SCROLL: 34416198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final int childCount = getChildCount(); 34426198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (childCount > 0) { 3443637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int firstChildTop = getChildAt(0).getTop(); 3444637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int lastChildBottom = getChildAt(childCount - 1).getBottom(); 3445637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentTop = mListPadding.top; 3446637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int contentBottom = getHeight() - mListPadding.bottom; 3447637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFirstPosition == 0 && firstChildTop >= contentTop && 34486198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFirstPosition + childCount < mItemCount && 3449637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom <= getHeight() - contentBottom) { 34506198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mTouchMode = TOUCH_MODE_REST; 34516198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34526198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } else { 34536198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy final VelocityTracker velocityTracker = mVelocityTracker; 34546198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3455637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 345621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy final int initialVelocity = (int) 345721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy (velocityTracker.getYVelocity(mActivePointerId) * mVelocityScale); 3458637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Fling if we have enough velocity and we aren't at a boundary. 3459637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Since we can potentially overfling more than we can overscroll, don't 3460637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // allow the weird behavior where you can scroll to a boundary then 3461637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // fling further. 3462637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity && 3463637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell !((mFirstPosition == 0 && 3464637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell firstChildTop == contentTop - mOverscrollDistance) || 3465637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (mFirstPosition + childCount == mItemCount && 3466637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell lastChildBottom == contentBottom + mOverscrollDistance))) { 34676198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy if (mFlingRunnable == null) { 34686198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable = new FlingRunnable(); 34696198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34706198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 34714e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 34726198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy mFlingRunnable.start(-initialVelocity); 3473f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy } else { 3474f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy mTouchMode = TOUCH_MODE_REST; 3475f3c7d4294dee6a271e417d81bdd74c87e57ce5b3Romain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3476d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mFlingRunnable != null) { 3477d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mFlingRunnable.endFling(); 3478d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 34794032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 34804032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 34814032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 34826198ae8468668bf7374535c2eeeab8de7f8e7e99Romain Guy } 34839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 34849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 34859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 34869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 34879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 348879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell break; 3489637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3490637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3491637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3492637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3493637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3494637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final VelocityTracker velocityTracker = mVelocityTracker; 3495637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell velocityTracker.computeCurrentVelocity(1000, mMaximumVelocity); 3496637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int initialVelocity = (int) velocityTracker.getYVelocity(mActivePointerId); 3497637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3498637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 3499637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (Math.abs(initialVelocity) > mMinimumVelocity) { 3500637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startOverfling(-initialVelocity); 3501637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3502637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3503637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3504637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3505637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setPressed(false); 35090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 3510637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3511637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3512637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3513637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3514637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 35159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Need to redraw since we probably aren't drawing the selector anymore 35169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 35170a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 35189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Handler handler = getHandler(); 35199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (handler != null) { 35209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handler.removeCallbacks(mPendingCheckForLongPress); 35219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 352313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35254cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_SCROLLING) { 35289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mScrollProfilingStarted) { 35299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.stopMethodTracing(); 35309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrollProfilingStarted = false; 35319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35331cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 35341cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mScrollStrictSpan != null) { 35351cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan.finish(); 35361cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mScrollStrictSpan = null; 35371cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 35389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 35399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 35419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_CANCEL: { 3542637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell switch (mTouchMode) { 3543637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERSCROLL: 3544637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingRunnable == null) { 3545637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable = new FlingRunnable(); 3546637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3547637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingRunnable.startSpringback(); 3548637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3550637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: 3551637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Do nothing - let it play out. 3552637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 35539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3554637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell default: 3555637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3556637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell setPressed(false); 3557637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = this.getChildAt(mMotionPosition - mFirstPosition); 3558637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 3559637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell motionView.setPressed(false); 3560637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3561637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell clearScrollingCache(); 3562637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3563637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final Handler handler = getHandler(); 3564637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (handler != null) { 3565637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell handler.removeCallbacks(mPendingCheckForLongPress); 3566637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3567637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 356813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 35699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35704e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 3571637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3572637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onRelease(); 3573637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onRelease(); 3574637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 35754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 35764cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35774cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35784e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 35794cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 35804cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 35814cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = mMotionX; 35824cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = mMotionY; 35834cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int motionPosition = pointToPosition(x, y); 35844cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (motionPosition >= 0) { 35854cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // Remember where the motion event started 35864cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell v = getChildAt(motionPosition - mFirstPosition); 35874cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionViewOriginalTop = v.getTop(); 35884cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionPosition = motionPosition; 35894cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 35904cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mLastY = y; 35914cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 35929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 35939bc30d31322848d61f518c1db43544988faaba8fAdam Powell 35949bc30d31322848d61f518c1db43544988faaba8fAdam Powell case MotionEvent.ACTION_POINTER_DOWN: { 35959bc30d31322848d61f518c1db43544988faaba8fAdam Powell // New pointers take over dragging duties 35969bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int index = ev.getActionIndex(); 35979bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int id = ev.getPointerId(index); 35989bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int x = (int) ev.getX(index); 35999bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int y = (int) ev.getY(index); 36009bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionCorrection = 0; 36019bc30d31322848d61f518c1db43544988faaba8fAdam Powell mActivePointerId = id; 36029bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionX = x; 36039bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionY = y; 36049bc30d31322848d61f518c1db43544988faaba8fAdam Powell final int motionPosition = pointToPosition(x, y); 36059bc30d31322848d61f518c1db43544988faaba8fAdam Powell if (motionPosition >= 0) { 36069bc30d31322848d61f518c1db43544988faaba8fAdam Powell // Remember where the motion event started 36079bc30d31322848d61f518c1db43544988faaba8fAdam Powell v = getChildAt(motionPosition - mFirstPosition); 36089bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionViewOriginalTop = v.getTop(); 36099bc30d31322848d61f518c1db43544988faaba8fAdam Powell mMotionPosition = motionPosition; 36109bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36119bc30d31322848d61f518c1db43544988faaba8fAdam Powell mLastY = y; 36129bc30d31322848d61f518c1db43544988faaba8fAdam Powell break; 36139bc30d31322848d61f518c1db43544988faaba8fAdam Powell } 36149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 36169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 36179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 36180a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 36199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 36200a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne protected void onOverScrolled(int scrollX, int scrollY, boolean clampedX, boolean clampedY) { 36210a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (mScrollY != scrollY) { 36220a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne onScrollChanged(mScrollX, scrollY, mScrollX, mScrollY); 36230a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne mScrollY = scrollY; 36240a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne invalidateParentIfNeeded(); 36250a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne 36260a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne awakenScrollBars(); 3627637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3628637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3629637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3630637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell @Override 363133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown public boolean onGenericMotionEvent(MotionEvent event) { 363233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if ((event.getSource() & InputDevice.SOURCE_CLASS_POINTER) != 0) { 363333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown switch (event.getAction()) { 363433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown case MotionEvent.ACTION_SCROLL: { 363533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (mTouchMode == TOUCH_MODE_REST) { 363633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final float vscroll = event.getAxisValue(MotionEvent.AXIS_VSCROLL); 363733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown if (vscroll != 0) { 363833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown final int delta = (int) (vscroll * getVerticalScrollFactor()); 3639275d8238da4c19acefffdb701273de86c09d2472Jeff Brown if (!trackMotionScroll(delta, delta)) { 364033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return true; 364133bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364233bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364333bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364433bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364533bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364633bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364733bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown return super.onGenericMotionEvent(event); 364833bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown } 364933bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown 365033bbfd2232ea9eaae9a9d87a05a95a430f09bd83Jeff Brown @Override 36519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void draw(Canvas canvas) { 36529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super.draw(canvas); 3653637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 3654637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3655637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowTop.isFinished()) { 3656637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 365707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 365807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 365907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3660637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36619d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.min(0, scrollY + mFirstPositionDistanceGuess); 36629d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(leftPadding, edgeY); 3663a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowTop.setSize(width, getHeight()); 3664637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop.draw(canvas)) { 36659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mEdgeGlowTop.setPosition(leftPadding, edgeY); 3666a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowTop.getBounds(false)); 3667637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3668637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3669637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3670637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (!mEdgeGlowBottom.isFinished()) { 3671637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int restoreCount = canvas.save(); 367207d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int leftPadding = mListPadding.left + mGlowPaddingLeft; 367307d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int rightPadding = mListPadding.right + mGlowPaddingRight; 367407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell final int width = getWidth() - leftPadding - rightPadding; 3675637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int height = getHeight(); 3676637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 36779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeX = -width + leftPadding; 36789d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy int edgeY = Math.max(height, scrollY + mLastPositionDistanceGuess); 36799d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy canvas.translate(edgeX, edgeY); 3680e1be66cdbce9f1bb6aa00bcfc32c1fe6a60e7574Mindy Pereira canvas.rotate(180, width, 0); 3681a5531d784b9b79fe3bf9b30d99e9c99ea3947c6dMindy Pereira mEdgeGlowBottom.setSize(width, height); 3682637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowBottom.draw(canvas)) { 36839d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // Account for the rotation 3684a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy mEdgeGlowBottom.setPosition(edgeX + width, edgeY); 3685a8bfeaf4f49fa33e96f37302f9c9b99c94aa1581Romain Guy invalidate(mEdgeGlowBottom.getBounds(true)); 3686637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3687637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3688637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3689637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 36909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 3691637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 3692637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scrollY != 0) { 3693637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pin to the top/bottom during overscroll 3694637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int restoreCount = canvas.save(); 3695637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.translate(0, (float) scrollY); 3696637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3697637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell canvas.restoreToCount(restoreCount); 3698637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3699637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFastScroller.draw(canvas); 3700637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 370407d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell /** 370507d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell * @hide 370607d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell */ 370707d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell public void setOverScrollEffectPadding(int leftPadding, int rightPadding) { 370807d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingLeft = leftPadding; 370907d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell mGlowPaddingRight = rightPadding; 371007d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell } 371107d6f7bd750655852da49ee1a3c64f7dc05cc00dAdam Powell 371213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initOrResetVelocityTracker() { 371313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 371413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 371513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } else { 371613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.clear(); 371713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 371813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 371913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 372013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void initVelocityTrackerIfNotExists() { 372113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker == null) { 372213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = VelocityTracker.obtain(); 372313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 372413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 372513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 372613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka private void recycleVelocityTracker() { 372713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (mVelocityTracker != null) { 372813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.recycle(); 372913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker = null; 373013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373213451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 373313451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka @Override 373413451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka public void requestDisallowInterceptTouchEvent(boolean disallowIntercept) { 373513451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka if (disallowIntercept) { 373613451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 373713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 373813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka super.requestDisallowInterceptTouchEvent(disallowIntercept); 373913451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka } 374013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka 37419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 37429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean onInterceptTouchEvent(MotionEvent ev) { 37439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = ev.getAction(); 37449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View v; 37450a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37461fa179ef41c06bd19da70fd9bf95741238791940Adam Powell if (mPositionScroller != null) { 37471fa179ef41c06bd19da70fd9bf95741238791940Adam Powell mPositionScroller.stop(); 37481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell } 37491fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 375028048d011cb0887cd641977ca37e5f2fde04d191Adam Powell if (!mIsAttached) { 375128048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Something isn't right. 375228048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // Since we rely on being attached to get data set change notifications, 375328048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // don't risk doing anything where we might try to resync and find things 375428048d011cb0887cd641977ca37e5f2fde04d191Adam Powell // in a bogus state. 375528048d011cb0887cd641977ca37e5f2fde04d191Adam Powell return false; 375628048d011cb0887cd641977ca37e5f2fde04d191Adam Powell } 375728048d011cb0887cd641977ca37e5f2fde04d191Adam Powell 37589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFastScroller != null) { 37599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean intercepted = mFastScroller.onInterceptTouchEvent(ev); 37609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (intercepted) { 37619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 37629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37640a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 37654cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell switch (action & MotionEvent.ACTION_MASK) { 37669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_DOWN: { 376779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell int touchMode = mTouchMode; 3768637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (touchMode == TOUCH_MODE_OVERFLING || touchMode == TOUCH_MODE_OVERSCROLL) { 3769637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 3770637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return true; 3771637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 37724e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37734cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int x = (int) ev.getX(); 37744cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(); 37754cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(0); 37764e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 37779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int motionPosition = findMotionRow(y); 377879ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode != TOUCH_MODE_FLING && motionPosition >= 0) { 37799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // User clicked on an actual view (and was not stopping a fling). 37809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember where the motion event started 37819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project v = getChildAt(motionPosition - mFirstPosition); 37829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionViewOriginalTop = v.getTop(); 37839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionX = x; 37849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionY = y; 37859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mMotionPosition = motionPosition; 37869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_DOWN; 37879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 37889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastY = Integer.MIN_VALUE; 379013451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initOrResetVelocityTracker(); 379113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 379279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (touchMode == TOUCH_MODE_FLING) { 37934b4f40f84e72579417604143e5f42115769649b8Romain Guy return true; 37944b4f40f84e72579417604143e5f42115769649b8Romain Guy } 37959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 37969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 37979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 37989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_MOVE: { 37999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mTouchMode) { 38009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case TOUCH_MODE_DOWN: 38012585e9bd6ded294e426607717ccc85a56bade594Justin Koh int pointerIndex = ev.findPointerIndex(mActivePointerId); 38022585e9bd6ded294e426607717ccc85a56bade594Justin Koh if (pointerIndex == -1) { 38032585e9bd6ded294e426607717ccc85a56bade594Justin Koh pointerIndex = 0; 38042585e9bd6ded294e426607717ccc85a56bade594Justin Koh mActivePointerId = ev.getPointerId(pointerIndex); 38052585e9bd6ded294e426607717ccc85a56bade594Justin Koh } 38064cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int y = (int) ev.getY(pointerIndex); 380713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka initVelocityTrackerIfNotExists(); 380813451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka mVelocityTracker.addMovement(ev); 380978f6e63031da4ff06057be9a9e6c77ea83da4673Jeff Brown if (startScrollIfNeeded(y)) { 38109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return true; 38119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 381713451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka case MotionEvent.ACTION_CANCEL: 38189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case MotionEvent.ACTION_UP: { 38199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 38204cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = INVALID_POINTER; 382113451a476a1951a19d3cb531c47bf5a51587800aMichael Jurka recycleVelocityTracker(); 38229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 38239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 38249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38264cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell case MotionEvent.ACTION_POINTER_UP: { 38274cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell onSecondaryPointerUp(ev); 38284cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell break; 38294cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 38339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38344e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 38354cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell private void onSecondaryPointerUp(MotionEvent ev) { 38364cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerIndex = (ev.getAction() & MotionEvent.ACTION_POINTER_INDEX_MASK) >> 38374cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell MotionEvent.ACTION_POINTER_INDEX_SHIFT; 38384cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int pointerId = ev.getPointerId(pointerIndex); 38394cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell if (pointerId == mActivePointerId) { 38404cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // This was our active pointer going up. Choose a new 38414cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // active pointer and adjust accordingly. 38424cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell // TODO: Make this decision more intelligent. 38434cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell final int newPointerIndex = pointerIndex == 0 ? 1 : 0; 38444cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionX = (int) ev.getX(newPointerIndex); 38454cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mMotionY = (int) ev.getY(newPointerIndex); 3846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionCorrection = 0; 38474cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell mActivePointerId = ev.getPointerId(newPointerIndex); 38484cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38494cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell } 38509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@inheritDoc} 38539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 38559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void addTouchables(ArrayList<View> views) { 38569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = getChildCount(); 38579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 38589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ListAdapter adapter = mAdapter; 38599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter == null) { 38619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 38629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < count; i++) { 38659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View child = getChildAt(i); 38669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (adapter.isEnabled(firstPosition + i)) { 38679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 38689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project child.addTouchables(views); 38709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fires an "on scroll state changed" event to the registered 38759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.AbsListView.OnScrollListener}, if any. The state change 38769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * is fired only if the specified state is different from the previously known state. 38779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param newState The new scroll state. 38799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reportScrollStateChange(int newState) { 38819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newState != mLastScrollState) { 38829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mOnScrollListener != null) { 38839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastScrollState = newState; 38840046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell mOnScrollListener.onScrollStateChanged(this, newState); 38859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 38889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 38899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Responsible for fling behavior. Use {@link #start(int)} to 38919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * initiate a fling. Each frame of the fling is handled in {@link #run()}. 38929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A FlingRunnable will keep re-posting itself until the fling is done. 38939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 38949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 38959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private class FlingRunnable implements Runnable { 38969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 38979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Tracks the decay of a fling scroll 38989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 3899637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private final OverScroller mScroller; 39009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 39029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Y value reported by mScroller on the previous fling 39039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 39049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mLastFlingY; 39059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 3906d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private final Runnable mCheckFlywheel = new Runnable() { 3907d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne public void run() { 3908d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final int activeId = mActivePointerId; 3909d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final VelocityTracker vt = mVelocityTracker; 3910637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 3911d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (vt == null || activeId == INVALID_POINTER) { 3912d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 3913d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3914d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3915d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne vt.computeCurrentVelocity(1000, mMaximumVelocity); 3916d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne final float yvel = -vt.getYVelocity(activeId); 3917d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3918b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown if (Math.abs(yvel) >= mMinimumVelocity 3919b0c71eb9f50ce06327fa6bb6219f0970e04fd856Jeff Brown && scroller.isScrollingInDirection(0, yvel)) { 3920d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Keep the fling alive a little longer 3921d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(this, FLYWHEEL_TIMEOUT); 3922d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } else { 3923d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 3924d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mTouchMode = TOUCH_MODE_SCROLL; 3925b43d6a30ad1e7bf0e64192a1f144b3fe1bcf7f95Erik reportScrollStateChange(OnScrollListener.SCROLL_STATE_TOUCH_SCROLL); 3926d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3927d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 3928d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne }; 3929d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 3930d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne private static final int FLYWHEEL_TIMEOUT = 40; // milliseconds 3931d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 393279ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell FlingRunnable() { 3933637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller = new OverScroller(getContext()); 39349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 393679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell void start(int initialVelocity) { 39379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int initialY = initialVelocity < 0 ? Integer.MAX_VALUE : 0; 39389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLastFlingY = initialY; 39390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 39409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScroller.fling(0, initialY, 0, initialVelocity, 39419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 0, Integer.MAX_VALUE, 0, Integer.MAX_VALUE); 39429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_FLING; 39431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 39449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 39459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (PROFILE_FLINGING) { 39469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!mFlingProfilingStarted) { 39479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Debug.startMethodTracing("AbsListViewFling"); 39489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFlingProfilingStarted = true; 39499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 39511cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick 39521cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick if (mFlingStrictSpan == null) { 39531cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick mFlingStrictSpan = StrictMode.enterCriticalSpan("AbsListView-fling"); 39541cc13b6d1cc7203ad126b0708f0bf697e111264fBrad Fitzpatrick } 39559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 3956458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 3957637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startSpringback() { 3958637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mScroller.springBack(0, mScrollY, 0, 0, 0, 0)) { 3959637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3960637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39611fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3962637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3963637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_REST; 3964e20a193754edec182fc0ea13f84a2a1e50add99fGilles Debunne reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 3965637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3966637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3967637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3968637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void startOverfling(int initialVelocity) { 39690b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(null); 3970044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell mScroller.fling(0, mScrollY, 0, initialVelocity, 0, 0, 3971044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell Integer.MIN_VALUE, Integer.MAX_VALUE, 0, getHeight()); 3972637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3973637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39741fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3975637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3976637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 3977637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell void edgeReached(int delta) { 3978637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mScroller.notifyVerticalEdgeReached(mScrollY, 0, mOverflingDistance); 3979637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int overscrollMode = getOverScrollMode(); 3980637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overscrollMode == OVER_SCROLL_ALWAYS || 3981637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell (overscrollMode == OVER_SCROLL_IF_CONTENT_SCROLLS && !contentFits())) { 3982637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mTouchMode = TOUCH_MODE_OVERFLING; 3983637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int vel = (int) mScroller.getCurrVelocity(); 3984637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 3985637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.onAbsorb(vel); 3986637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 3987637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.onAbsorb(vel); 3988637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 39894032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 39904032252c997be9f5d013054dc23ace855007b3a5Adam Powell mTouchMode = TOUCH_MODE_REST; 39914032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 39924032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 39934032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 3994637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3995637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 39961fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 3997637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 3998637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 39990b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void startScroll(int distance, int duration, boolean linear) { 4000458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int initialY = distance < 0 ? Integer.MAX_VALUE : 0; 4001458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastFlingY = initialY; 40020b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScroller.setInterpolator(linear ? sLinearInterpolator : null); 4003458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScroller.startScroll(0, initialY, 0, distance, duration); 4004458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mTouchMode = TOUCH_MODE_FLING; 40051fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4006458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4007458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4008d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void endFling() { 40099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 4010458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 401179ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell removeCallbacks(this); 4012d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne removeCallbacks(mCheckFlywheel); 401321317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 401421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 401521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy clearScrollingCache(); 4016d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne mScroller.abortAnimation(); 40175e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick 40185e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick if (mFlingStrictSpan != null) { 40195e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan.finish(); 40205e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick mFlingStrictSpan = null; 40215e9d94505bd7d4e294bfe309db25e293164e2d29Brad Fitzpatrick } 4022d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4023d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4024d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne void flywheelTouch() { 4025d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne postDelayed(mCheckFlywheel, FLYWHEEL_TIMEOUT); 40269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 40279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 40289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void run() { 402979ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell switch (mTouchMode) { 403079ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell default: 4031d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne endFling(); 40329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 40334e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4034d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne case TOUCH_MODE_SCROLL: 4035d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne if (mScroller.isFinished()) { 4036d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne return; 4037d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne } 4038d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne // Fall through 4039637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_FLING: { 40407f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey if (mDataChanged) { 40417f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey layoutChildren(); 40427f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey } 40437f2202b0bd6eb66e64d1bbed91c39181b754e90fJeff Sharkey 404479ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell if (mItemCount == 0 || getChildCount() == 0) { 404579ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell endFling(); 404679ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell return; 404779ac3395b58de5b99f0bb43d8950f6b95348326dAdam Powell } 40489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4049637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4050637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell boolean more = scroller.computeScrollOffset(); 4051637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int y = scroller.getCurrY(); 40529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4053637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Flip sign to convert finger direction to list items direction 4054637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // (e.g. finger moving down means list is moving towards the top) 4055637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int delta = mLastFlingY - y; 40569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4057637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Pretend that each frame of a fling scroll is a touch scroll 4058637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (delta > 0) { 4059637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the top. Use first view as mMotionPosition 4060637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition; 4061637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View firstView = getChildAt(0); 4062637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = firstView.getTop(); 40639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4064637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4065637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.min(getHeight() - mPaddingBottom - mPaddingTop - 1, delta); 4066637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4067637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // List is moving towards the bottom. Use last view as mMotionPosition 4068637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int offsetToLast = getChildCount() - 1; 4069637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionPosition = mFirstPosition + offsetToLast; 40709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4071637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final View lastView = getChildAt(offsetToLast); 4072637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mMotionViewOriginalTop = lastView.getTop(); 4073d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4074637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't fling more than 1 screen 4075637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell delta = Math.max(-(getHeight() - mPaddingBottom - mPaddingTop - 1), delta); 4076637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4077d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4078637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Check to see if we have bumped into the scroll limit 4079637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell View motionView = getChildAt(mMotionPosition - mFirstPosition); 4080637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int oldTop = 0; 4081637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4082637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell oldTop = motionView.getTop(); 4083637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4084637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4085637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Don't stop just because delta is zero (it could have been rounded) 40869d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEdge = trackMotionScroll(delta, delta); 40879d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy final boolean atEnd = atEdge && (delta != 0); 4088637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (atEnd) { 4089637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (motionView != null) { 4090637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Tweak the scroll for how far we overshot 4091637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int overshoot = -(delta - (motionView.getTop() - oldTop)); 4092637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell overScrollBy(0, overshoot, 0, mScrollY, 0, 0, 4093637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false); 4094637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 40953cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell if (more) { 40963cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell edgeReached(delta); 40973cd0c571ead0795d6e3d86a2865d51ff35b01c6fAdam Powell } 4098637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4099637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4100637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4101637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (more && !atEnd) { 41029d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (atEdge) invalidate(); 4103637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastFlingY = y; 41041fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4105637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4106637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4107637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4108637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (PROFILE_FLINGING) { 4109637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingProfilingStarted) { 4110637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell Debug.stopMethodTracing(); 4111637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingProfilingStarted = false; 4112637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4113d348bb4feff72d047a1037537be2d334a00c380cGilles Debunne 4114637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mFlingStrictSpan != null) { 4115637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan.finish(); 4116637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFlingStrictSpan = null; 4117637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4120637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4121637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4122637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 4123637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell case TOUCH_MODE_OVERFLING: { 4124637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final OverScroller scroller = mScroller; 4125637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (scroller.computeScrollOffset()) { 4126637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int scrollY = mScrollY; 4127044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int currY = scroller.getCurrY(); 4128044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final int deltaY = currY - scrollY; 4129637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (overScrollBy(0, deltaY, 0, scrollY, 0, 0, 4130637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 0, mOverflingDistance, false)) { 4131044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossDown = scrollY <= 0 && currY > 0; 4132044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell final boolean crossUp = scrollY >= 0 && currY < 0; 4133044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossDown || crossUp) { 4134044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell int velocity = (int) scroller.getCurrVelocity(); 4135044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell if (crossUp) velocity = -velocity; 4136044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell 4137044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell // Don't flywheel from this; we're just continuing things. 4138044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell scroller.abortAnimation(); 4139044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell start(velocity); 4140044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } else { 4141044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell startSpringback(); 4142044a46bda5e2f6bc9f700e65d05ed17faae68f11Adam Powell } 4143637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4144637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell invalidate(); 41451fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4146637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4147637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4148637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell endFling(); 4149637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4150637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell break; 4151637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 41529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 41554e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4156458034799861fef47e00d85d528b4dac5e00bd51Adam Powell class PositionScroller implements Runnable { 4157e69370e16852c576890dd70733ad40669fd9367eAdam Powell private static final int SCROLL_DURATION = 200; 41584e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4159458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_POS = 1; 4160458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_POS = 2; 4161458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_DOWN_BOUND = 3; 4162458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private static final int MOVE_UP_BOUND = 4; 4163e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private static final int MOVE_OFFSET = 5; 41644e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4165458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mMode; 4166458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mTargetPos; 4167458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mBoundPos; 4168458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mLastSeenPos; 4169458034799861fef47e00d85d528b4dac5e00bd51Adam Powell private int mScrollDuration; 417052964243dc95f74ac2ab9a96d031a36931a11931Gilles Debunne private final int mExtraScroll; 4171e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4172e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell private int mOffsetFromTop; 41734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4174458034799861fef47e00d85d528b4dac5e00bd51Adam Powell PositionScroller() { 4175458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mExtraScroll = ViewConfiguration.get(mContext).getScaledFadingEdgeLength(); 4176458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 41774e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4178e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position) { 41794032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 41804032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4181aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4182aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4183161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4184aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4185aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position); 4186aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4187161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4188aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4189aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4190aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4191e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4192e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4193e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4194e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4195e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4196e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4197458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4198e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 41994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42004bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42010061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42020061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 42030061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - clampedPosition + 1; 4204458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 42050061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 42060061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = clampedPosition - lastPos + 1; 4207458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4208458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42090061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, INVALID_POSITION, SCROLL_DURATION); 4210458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4211458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4213458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4214458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4215458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4216458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4217458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42180061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4219458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = INVALID_POSITION; 4220458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42214e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42221fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4223458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42244e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4225e69370e16852c576890dd70733ad40669fd9367eAdam Powell void start(final int position, final int boundPosition) { 42264032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 42274032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4228458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosition == INVALID_POSITION) { 4229458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start(position); 4230458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4231458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42324e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4233aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4234aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4235161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4236aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4237aadf4fb68e640c0622a1070206f69a7724328632Adam Powell start(position, boundPosition); 4238aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4239161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4240aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4241aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4242aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4243e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4244e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (childCount == 0) { 4245e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Can't scroll without children. 4246e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4247e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4248e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4249458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 4250e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 42514e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42524bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 42530061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase int clampedPosition = Math.max(0, Math.min(getCount() - 1, position)); 42540061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (clampedPosition < firstPos) { 4255458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromLast = lastPos - boundPosition; 4256458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromLast < 1) { 4257458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4258458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4259458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42604e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 42610061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = firstPos - clampedPosition + 1; 4262458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromLast - 1; 4263458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4264458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4265458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_BOUND; 4266458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4267458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4268458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_UP_POS; 4269458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42700061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (clampedPosition > lastPos) { 4271458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundPosFromFirst = boundPosition - firstPos; 4272458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundPosFromFirst < 1) { 4273458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // Moving would shift our bound position off the screen. Abort. 4274458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4275458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4276458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 42770061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int posTravel = clampedPosition - lastPos + 1; 4278458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int boundTravel = boundPosFromFirst - 1; 4279458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (boundTravel < posTravel) { 4280458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = boundTravel; 4281458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_BOUND; 4282458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4283458034799861fef47e00d85d528b4dac5e00bd51Adam Powell viewTravelCount = posTravel; 4284458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMode = MOVE_DOWN_POS; 4285458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4286458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 42870061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase scrollToVisible(clampedPosition, boundPosition, SCROLL_DURATION); 4288458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4289458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42904e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4291458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (viewTravelCount > 0) { 4292458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION / viewTravelCount; 4293458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4294458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mScrollDuration = SCROLL_DURATION; 4295458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 42960061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = clampedPosition; 4297458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBoundPos = boundPosition; 4298458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = INVALID_POSITION; 42994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 43001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4301458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4302e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4303e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell void startWithOffset(int position, int offset) { 4304322171b333a1c796fcc1428a96ea1d854a3881faErik startWithOffset(position, offset, SCROLL_DURATION); 4305322171b333a1c796fcc1428a96ea1d854a3881faErik } 4306322171b333a1c796fcc1428a96ea1d854a3881faErik 4307aadf4fb68e640c0622a1070206f69a7724328632Adam Powell void startWithOffset(final int position, int offset, final int duration) { 43084032252c997be9f5d013054dc23ace855007b3a5Adam Powell stop(); 43094032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4310aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (mDataChanged) { 4311aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Wait until we're back in a stable state to try this. 4312aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int postOffset = offset; 4313161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell mPositionScrollAfterLayout = new Runnable() { 4314aadf4fb68e640c0622a1070206f69a7724328632Adam Powell @Override public void run() { 4315aadf4fb68e640c0622a1070206f69a7724328632Adam Powell startWithOffset(position, postOffset, duration); 4316aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4317161abf3d44feebb8462f7d0cbee81574d666234bAdam Powell }; 4318aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4319aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4320aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 4321aadf4fb68e640c0622a1070206f69a7724328632Adam Powell final int childCount = getChildCount(); 4322aadf4fb68e640c0622a1070206f69a7724328632Adam Powell if (childCount == 0) { 4323aadf4fb68e640c0622a1070206f69a7724328632Adam Powell // Can't scroll without children. 4324aadf4fb68e640c0622a1070206f69a7724328632Adam Powell return; 4325aadf4fb68e640c0622a1070206f69a7724328632Adam Powell } 4326aadf4fb68e640c0622a1070206f69a7724328632Adam Powell 43271fa179ef41c06bd19da70fd9bf95741238791940Adam Powell offset += getPaddingTop(); 43281fa179ef41c06bd19da70fd9bf95741238791940Adam Powell 43290061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase mTargetPos = Math.max(0, Math.min(getCount() - 1, position)); 4330e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mOffsetFromTop = offset; 4331e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mBoundPos = INVALID_POSITION; 4332e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mLastSeenPos = INVALID_POSITION; 4333e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mMode = MOVE_OFFSET; 4334e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4335e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int firstPos = mFirstPosition; 4336371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4337e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 43384bede9e425875542976a422222510fa4056a8339Romain Guy int viewTravelCount; 43390061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase if (mTargetPos < firstPos) { 43400061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = firstPos - mTargetPos; 43410061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase } else if (mTargetPos > lastPos) { 43420061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase viewTravelCount = mTargetPos - lastPos; 4343e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4344e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 43450061e16e538f800ff995ad05bc21cc7728f160e2Chet Haase final int targetTop = getChildAt(mTargetPos - firstPos).getTop(); 43460b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(targetTop - offset, duration, true); 4347e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell return; 4348e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4349e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4350371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell // Estimate how many screens we should travel 43514ef1da3c04aed2fc7af7796a731f5cf00712ae02Daniel Lehmann final float screenTravelCount = (float) viewTravelCount / childCount; 43520b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration = screenTravelCount < 1 ? 43530b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell duration : (int) (duration / screenTravelCount); 4354371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = INVALID_POSITION; 4355234a5715309ea74757780aff6123e3144efb5b69Adam Powell 43561fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4357e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4358e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4359e69370e16852c576890dd70733ad40669fd9367eAdam Powell /** 4360e69370e16852c576890dd70733ad40669fd9367eAdam Powell * Scroll such that targetPos is in the visible padded region without scrolling 4361e69370e16852c576890dd70733ad40669fd9367eAdam Powell * boundPos out of view. Assumes targetPos is onscreen. 4362e69370e16852c576890dd70733ad40669fd9367eAdam Powell */ 4363e69370e16852c576890dd70733ad40669fd9367eAdam Powell void scrollToVisible(int targetPos, int boundPos, int duration) { 4364e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int firstPos = mFirstPosition; 4365e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int childCount = getChildCount(); 4366e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int lastPos = firstPos + childCount - 1; 4367e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedTop = mListPadding.top; 4368e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int paddedBottom = getHeight() - mListPadding.bottom; 4369e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4370e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetPos < firstPos || targetPos > lastPos) { 4371e69370e16852c576890dd70733ad40669fd9367eAdam Powell Log.w(TAG, "scrollToVisible called with targetPos " + targetPos + 4372e69370e16852c576890dd70733ad40669fd9367eAdam Powell " not visible [" + firstPos + ", " + lastPos + "]"); 4373e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4374e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos < firstPos || boundPos > lastPos) { 4375e69370e16852c576890dd70733ad40669fd9367eAdam Powell // boundPos doesn't matter, it's already offscreen. 4376e69370e16852c576890dd70733ad40669fd9367eAdam Powell boundPos = INVALID_POSITION; 4377e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4378e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4379e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View targetChild = getChildAt(targetPos - firstPos); 4380e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetTop = targetChild.getTop(); 4381e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int targetBottom = targetChild.getBottom(); 4382e69370e16852c576890dd70733ad40669fd9367eAdam Powell int scrollBy = 0; 4383e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4384e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetBottom > paddedBottom) { 4385e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetBottom - paddedBottom; 4386e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4387e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (targetTop < paddedTop) { 4388e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = targetTop - paddedTop; 4389e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4390e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4391e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy == 0) { 4392e69370e16852c576890dd70733ad40669fd9367eAdam Powell return; 4393e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4394e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4395e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (boundPos >= 0) { 4396e69370e16852c576890dd70733ad40669fd9367eAdam Powell final View boundChild = getChildAt(boundPos - firstPos); 4397e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundTop = boundChild.getTop(); 4398e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int boundBottom = boundChild.getBottom(); 4399e69370e16852c576890dd70733ad40669fd9367eAdam Powell final int absScroll = Math.abs(scrollBy); 4400e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4401e69370e16852c576890dd70733ad40669fd9367eAdam Powell if (scrollBy < 0 && boundBottom + absScroll > paddedBottom) { 4402e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the bottom of the screen. 4403e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.max(0, boundBottom - paddedBottom); 4404e69370e16852c576890dd70733ad40669fd9367eAdam Powell } else if (scrollBy > 0 && boundTop - absScroll < paddedTop) { 4405e69370e16852c576890dd70733ad40669fd9367eAdam Powell // Don't scroll the bound view off the top of the screen. 4406e69370e16852c576890dd70733ad40669fd9367eAdam Powell scrollBy = Math.min(0, boundTop - paddedTop); 4407e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4408e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4409e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4410e69370e16852c576890dd70733ad40669fd9367eAdam Powell smoothScrollBy(scrollBy, duration); 4411e69370e16852c576890dd70733ad40669fd9367eAdam Powell } 4412e69370e16852c576890dd70733ad40669fd9367eAdam Powell 4413458034799861fef47e00d85d528b4dac5e00bd51Adam Powell void stop() { 4414458034799861fef47e00d85d528b4dac5e00bd51Adam Powell removeCallbacks(this); 4415458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4416e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4417458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void run() { 4418458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int listHeight = getHeight(); 4419458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPos = mFirstPosition; 44204e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4421458034799861fef47e00d85d528b4dac5e00bd51Adam Powell switch (mMode) { 4422458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_POS: { 4423458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 1; 4424458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 44254e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 44260b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (lastViewIndex < 0) { 44270b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44280b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4429458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4430458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4431458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44321fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4433458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4434458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4435458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4436458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4437458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4438458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4439458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 44401fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = lastPos < mItemCount - 1 ? 44411fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mListPadding.bottom, mExtraScroll) : mListPadding.bottom; 4442458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44431fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int scrollBy = lastViewHeight - lastViewPixelsShowing + extraScroll; 44440b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(scrollBy, mScrollDuration, true); 4445458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4446458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 44477e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos < mTargetPos) { 44481fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4449458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4450458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4451458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44524e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4453458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_DOWN_BOUND: { 4454458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewIndex = 1; 4455029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final int childCount = getChildCount(); 44564e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4457029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (firstPos == mBoundPos || childCount <= nextViewIndex 4458029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell || firstPos + childCount >= mItemCount) { 4459458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4460458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4461458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextPos = firstPos + nextViewIndex; 4462458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4463458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (nextPos == mLastSeenPos) { 4464458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44651fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4466458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4467458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4468458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4469458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View nextView = getChildAt(nextViewIndex); 4470458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewHeight = nextView.getHeight(); 4471458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int nextViewTop = nextView.getTop(); 44721fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.bottom, mExtraScroll); 44737e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (nextPos < mBoundPos) { 4474458034799861fef47e00d85d528b4dac5e00bd51Adam Powell smoothScrollBy(Math.max(0, nextViewHeight + nextViewTop - extraScroll), 44750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mScrollDuration, true); 4476458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4477458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = nextPos; 4478458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 44791fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4480458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 44814e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira if (nextViewTop > extraScroll) { 44820b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(nextViewTop - extraScroll, mScrollDuration, true); 4483458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4484458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4485458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4486458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 44874e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4488458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_POS: { 4489458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (firstPos == mLastSeenPos) { 4490458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 44911fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4492458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4493458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4494458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4495458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View firstView = getChildAt(0); 44960b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell if (firstView == null) { 44970b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell return; 44980b8bb4282a7d1afb24f8c4d5beb2ca4ecc731116Adam Powell } 4499458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstViewTop = firstView.getTop(); 45001fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = firstPos > 0 ? 45011fa179ef41c06bd19da70fd9bf95741238791940Adam Powell Math.max(mExtraScroll, mListPadding.top) : mListPadding.top; 4502458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45030b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(firstViewTop - extraScroll, mScrollDuration, true); 4504458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4505458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = firstPos; 4506458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 45077e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (firstPos > mTargetPos) { 45081fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4509458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4510458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4511458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45124e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4513458034799861fef47e00d85d528b4dac5e00bd51Adam Powell case MOVE_UP_BOUND: { 4514458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewIndex = getChildCount() - 2; 4515458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastViewIndex < 0) { 4516458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4517458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4518458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastPos = firstPos + lastViewIndex; 4519458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4520458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (lastPos == mLastSeenPos) { 4521458034799861fef47e00d85d528b4dac5e00bd51Adam Powell // No new views, let things keep going. 45220b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4523458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return; 4524458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4525458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4526458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View lastView = getChildAt(lastViewIndex); 4527458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewHeight = lastView.getHeight(); 4528458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewTop = lastView.getTop(); 4529458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewPixelsShowing = listHeight - lastViewTop; 45301fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int extraScroll = Math.max(mListPadding.top, mExtraScroll); 4531458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mLastSeenPos = lastPos; 45327e5e3745cf0103219a13071fbd488c3c01da85d9Adam Powell if (lastPos > mBoundPos) { 45330b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(lastViewPixelsShowing - extraScroll), mScrollDuration, true); 45341fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4535458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 45361fa179ef41c06bd19da70fd9bf95741238791940Adam Powell final int bottom = listHeight - extraScroll; 4537458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int lastViewBottom = lastViewTop + lastViewHeight; 4538458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (bottom > lastViewBottom) { 45390b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(-(bottom - lastViewBottom), mScrollDuration, true); 4540458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4541458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4542458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4543458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4544458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4545e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell case MOVE_OFFSET: { 4546234a5715309ea74757780aff6123e3144efb5b69Adam Powell if (mLastSeenPos == firstPos) { 4547234a5715309ea74757780aff6123e3144efb5b69Adam Powell // No new views, let things keep going. 45480b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell postOnAnimation(this); 4549234a5715309ea74757780aff6123e3144efb5b69Adam Powell return; 4550234a5715309ea74757780aff6123e3144efb5b69Adam Powell } 4551e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4552371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell mLastSeenPos = firstPos; 4553234a5715309ea74757780aff6123e3144efb5b69Adam Powell 4554234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int childCount = getChildCount(); 4555e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int position = mTargetPos; 4556371133174b84a72ba61d5dc53b34216bbf0ecf1cAdam Powell final int lastPos = firstPos + childCount - 1; 4557e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 45584032252c997be9f5d013054dc23ace855007b3a5Adam Powell int viewTravelCount = 0; 4559e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (position < firstPos) { 45604032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = firstPos - position + 1; 45614032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else if (position > lastPos) { 45624032252c997be9f5d013054dc23ace855007b3a5Adam Powell viewTravelCount = position - lastPos; 45634032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 45644032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45654032252c997be9f5d013054dc23ace855007b3a5Adam Powell // Estimate how many screens we should travel 45664032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float screenTravelCount = (float) viewTravelCount / childCount; 45674032252c997be9f5d013054dc23ace855007b3a5Adam Powell 45684032252c997be9f5d013054dc23ace855007b3a5Adam Powell final float modifier = Math.min(Math.abs(screenTravelCount), 1.f); 45694032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (position < firstPos) { 45700b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (-getHeight() * modifier); 45710b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45720b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45731fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4574e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else if (position > lastPos) { 45750b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int distance = (int) (getHeight() * modifier); 45760b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * modifier); 45770b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 45781fa179ef41c06bd19da70fd9bf95741238791940Adam Powell postOnAnimation(this); 4579e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } else { 4580e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell // On-screen, just scroll. 4581e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell final int targetTop = getChildAt(position - firstPos).getTop(); 4582234a5715309ea74757780aff6123e3144efb5b69Adam Powell final int distance = targetTop - mOffsetFromTop; 45830b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell final int duration = (int) (mScrollDuration * 45840b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell ((float) Math.abs(distance) / getHeight())); 45850b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, true); 4586e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4587e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell break; 4588e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4589e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4590458034799861fef47e00d85d528b4dac5e00bd51Adam Powell default: 4591458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4592458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4593458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4594458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 45954e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4596458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 45974bede9e425875542976a422222510fa4056a8339Romain Guy * The amount of friction applied to flings. The default value 45984bede9e425875542976a422222510fa4056a8339Romain Guy * is {@link ViewConfiguration#getScrollFriction}. 45994e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 46004bede9e425875542976a422222510fa4056a8339Romain Guy * @return A scalar dimensionless value representing the coefficient of 46014bede9e425875542976a422222510fa4056a8339Romain Guy * friction. 46024bede9e425875542976a422222510fa4056a8339Romain Guy */ 46034bede9e425875542976a422222510fa4056a8339Romain Guy public void setFriction(float friction) { 46044bede9e425875542976a422222510fa4056a8339Romain Guy if (mFlingRunnable == null) { 46054bede9e425875542976a422222510fa4056a8339Romain Guy mFlingRunnable = new FlingRunnable(); 46064bede9e425875542976a422222510fa4056a8339Romain Guy } 46074e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira mFlingRunnable.mScroller.setFriction(friction); 46084bede9e425875542976a422222510fa4056a8339Romain Guy } 460921317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy 461021317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy /** 461121317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * Sets a scale factor for the fling velocity. The initial scale 461221317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * factor is 1.0. 46134e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * 461421317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy * @param scale The scale factor to multiply the velocity by. 461521317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy */ 461621317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy public void setVelocityScale(float scale) { 461721317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy mVelocityScale = scale; 461821317d1ddaa7c7204dfea9b38f87c6991f4a41afRomain Guy } 46194e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 46204bede9e425875542976a422222510fa4056a8339Romain Guy /** 4621458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4622458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed. 4623458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4624458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4625458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position) { 4626458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4627458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4628458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4629458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position); 4630458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4631322171b333a1c796fcc1428a96ea1d854a3881faErik 4632322171b333a1c796fcc1428a96ea1d854a3881faErik /** 4633322171b333a1c796fcc1428a96ea1d854a3881faErik * Smoothly scroll to the specified adapter position. The view will scroll 4634322171b333a1c796fcc1428a96ea1d854a3881faErik * such that the indicated position is displayed <code>offset</code> pixels from 4635322171b333a1c796fcc1428a96ea1d854a3881faErik * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4636322171b333a1c796fcc1428a96ea1d854a3881faErik * the first or last item beyond the boundaries of the list) it will get as close 4637322171b333a1c796fcc1428a96ea1d854a3881faErik * as possible. The scroll will take <code>duration</code> milliseconds to complete. 4638322171b333a1c796fcc1428a96ea1d854a3881faErik * 4639322171b333a1c796fcc1428a96ea1d854a3881faErik * @param position Position to scroll to 4640322171b333a1c796fcc1428a96ea1d854a3881faErik * @param offset Desired distance in pixels of <code>position</code> from the top 4641322171b333a1c796fcc1428a96ea1d854a3881faErik * of the view when scrolling is finished 4642322171b333a1c796fcc1428a96ea1d854a3881faErik * @param duration Number of milliseconds to use for the scroll 4643322171b333a1c796fcc1428a96ea1d854a3881faErik */ 4644322171b333a1c796fcc1428a96ea1d854a3881faErik public void smoothScrollToPositionFromTop(int position, int offset, int duration) { 4645322171b333a1c796fcc1428a96ea1d854a3881faErik if (mPositionScroller == null) { 4646322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller = new PositionScroller(); 4647322171b333a1c796fcc1428a96ea1d854a3881faErik } 4648322171b333a1c796fcc1428a96ea1d854a3881faErik mPositionScroller.startWithOffset(position, offset, duration); 4649322171b333a1c796fcc1428a96ea1d854a3881faErik } 4650322171b333a1c796fcc1428a96ea1d854a3881faErik 4651458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4652e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * Smoothly scroll to the specified adapter position. The view will scroll 4653e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * such that the indicated position is displayed <code>offset</code> pixels from 4654e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the top edge of the view. If this is impossible, (e.g. the offset would scroll 4655e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * the first or last item beyond the boundaries of the list) it will get as close 4656e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * as possible. 4657e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * 4658e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param position Position to scroll to 4659e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * @param offset Desired distance in pixels of <code>position</code> from the top 4660e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell * of the view when scrolling is finished 4661e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell */ 4662e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell public void smoothScrollToPositionFromTop(int position, int offset) { 4663e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell if (mPositionScroller == null) { 4664e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller = new PositionScroller(); 4665e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4666e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell mPositionScroller.startWithOffset(position, offset); 4667e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell } 4668e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell 4669e44afae7ff91edb80142fc62ce2bc2cb9d133d09Adam Powell /** 4670458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll to the specified adapter position. The view will 4671458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * scroll such that the indicated position is displayed, but it will 4672458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * stop early if scrolling further would scroll boundPosition out of 46734e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira * view. 4674458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param position Scroll to this adapter position. 4675458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param boundPosition Do not scroll if it would move this adapter 4676458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * position out of view. 4677458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4678458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollToPosition(int position, int boundPosition) { 4679458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mPositionScroller == null) { 4680458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller = new PositionScroller(); 4681458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4682458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mPositionScroller.start(position, boundPosition); 4683458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46844e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4685458034799861fef47e00d85d528b4dac5e00bd51Adam Powell /** 4686458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * Smoothly scroll by distance pixels over duration milliseconds. 4687458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param distance Distance to scroll in pixels. 4688458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @param duration Duration of the scroll animation in milliseconds. 4689458034799861fef47e00d85d528b4dac5e00bd51Adam Powell */ 4690458034799861fef47e00d85d528b4dac5e00bd51Adam Powell public void smoothScrollBy(int distance, int duration) { 46910b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell smoothScrollBy(distance, duration, false); 46920b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell } 46930b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell 46940b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell void smoothScrollBy(int distance, int duration, boolean linear) { 4695458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (mFlingRunnable == null) { 4696458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFlingRunnable = new FlingRunnable(); 4697458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 46984032252c997be9f5d013054dc23ace855007b3a5Adam Powell 4699299acb581205b6574bfa91824b1b887e265c4c40Marc Blank // No sense starting to scroll if we're not going anywhere 47004032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int firstPos = mFirstPosition; 47014032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int childCount = getChildCount(); 47024032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int lastPos = firstPos + childCount; 47034032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int topLimit = getPaddingTop(); 47044032252c997be9f5d013054dc23ace855007b3a5Adam Powell final int bottomLimit = getHeight() - getPaddingBottom(); 47054032252c997be9f5d013054dc23ace855007b3a5Adam Powell 470679303750df0e4d18f51f64c7ef3ca21fca893bbbAdam Powell if (distance == 0 || mItemCount == 0 || childCount == 0 || 47074032252c997be9f5d013054dc23ace855007b3a5Adam Powell (firstPos == 0 && getChildAt(0).getTop() == topLimit && distance < 0) || 4708aadf4fb68e640c0622a1070206f69a7724328632Adam Powell (lastPos == mItemCount && 47094032252c997be9f5d013054dc23ace855007b3a5Adam Powell getChildAt(childCount - 1).getBottom() == bottomLimit && distance > 0)) { 47104032252c997be9f5d013054dc23ace855007b3a5Adam Powell mFlingRunnable.endFling(); 47114032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 47124032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 47134032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 47144032252c997be9f5d013054dc23ace855007b3a5Adam Powell } else { 47150046bd8ea6f56b632fd7b9c4c33e22f57232bcbcAdam Powell reportScrollStateChange(OnScrollListener.SCROLL_STATE_FLING); 47160b8acd81d5029385ec0ae3cafd90acf3036b89acAdam Powell mFlingRunnable.startScroll(distance, duration, linear); 4717299acb581205b6574bfa91824b1b887e265c4c40Marc Blank } 4718458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 47199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4720499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 4721499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Allows RemoteViews to scroll relatively to a position. 4722499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 4723499cb9f516062b654952d282f211bee44c31a3c2Winson Chung void smoothScrollByOffset(int position) { 4724499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int index = -1; 4725499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (position < 0) { 4726499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getFirstVisiblePosition(); 4727499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if (position > 0) { 4728499cb9f516062b654952d282f211bee44c31a3c2Winson Chung index = getLastVisiblePosition(); 4729499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4730499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 4731499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (index > -1) { 4732499cb9f516062b654952d282f211bee44c31a3c2Winson Chung View child = getChildAt(index - getFirstVisiblePosition()); 4733499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child != null) { 4734499cb9f516062b654952d282f211bee44c31a3c2Winson Chung Rect visibleRect = new Rect(); 4735499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (child.getGlobalVisibleRect(visibleRect)) { 4736499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the child is partially visible 4737499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int childRectArea = child.getWidth() * child.getHeight(); 4738499cb9f516062b654952d282f211bee44c31a3c2Winson Chung int visibleRectArea = visibleRect.width() * visibleRect.height(); 4739499cb9f516062b654952d282f211bee44c31a3c2Winson Chung float visibleArea = (visibleRectArea / (float) childRectArea); 4740499cb9f516062b654952d282f211bee44c31a3c2Winson Chung final float visibleThreshold = 0.75f; 4741499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if ((position < 0) && (visibleArea < visibleThreshold)) { 4742499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the top index is not perceivably visible so offset 4743499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that top index as well 4744499cb9f516062b654952d282f211bee44c31a3c2Winson Chung ++index; 4745499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } else if ((position > 0) && (visibleArea < visibleThreshold)) { 4746499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // the bottom index is not perceivably visible so offset 4747499cb9f516062b654952d282f211bee44c31a3c2Winson Chung // to account for showing that bottom index as well 4748499cb9f516062b654952d282f211bee44c31a3c2Winson Chung --index; 4749499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4750499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4751499cb9f516062b654952d282f211bee44c31a3c2Winson Chung smoothScrollToPosition(Math.max(0, Math.min(getCount(), index + position))); 4752499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4753499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4754499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 4755499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 47569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createScrollingCache() { 47579d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mScrollingCacheEnabled && !mCachingStarted && !isHardwareAccelerated()) { 47589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawnWithCacheEnabled(true); 47599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setChildrenDrawingCacheEnabled(true); 47600211a0a10d20ec99bd78905ea9cd2960f7beb4c8Romain Guy mCachingStarted = mCachingActive = true; 47619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void clearScrollingCache() { 47659d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isHardwareAccelerated()) { 47669d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mClearScrollingCache == null) { 47679d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mClearScrollingCache = new Runnable() { 47689d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy public void run() { 47699d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (mCachingStarted) { 47709d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy mCachingStarted = mCachingActive = false; 47719d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawnWithCacheEnabled(false); 47729d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if ((mPersistentDrawingCache & PERSISTENT_SCROLLING_CACHE) == 0) { 47739d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy setChildrenDrawingCacheEnabled(false); 47749d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47759d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!isAlwaysDrawnWithCacheEnabled()) { 47769d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy invalidate(); 47779d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47786dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47796dfed24158b8fc9150abee23992db621cd82aa43Romain Guy } 47809d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy }; 47819d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 47829d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy post(mClearScrollingCache); 47839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 47869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 47879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Track a motion scroll 47889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 47899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param deltaY Amount to offset mMotionView. This is the accumulated delta since the motion 47909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * began. Positive numbers mean the user's finger is moving down the screen. 47919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param incrementalDeltaY Change in deltaY from the previous event. 4792458034799861fef47e00d85d528b4dac5e00bd51Adam Powell * @return true if we're already at the beginning/end of the list and have nothing to do. 47939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 4794458034799861fef47e00d85d528b4dac5e00bd51Adam Powell boolean trackMotionScroll(int deltaY, int incrementalDeltaY) { 47959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 47969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount == 0) { 4797458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return true; 47989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 47999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstTop = getChildAt(0).getTop(); 48019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int lastBottom = getChildAt(childCount - 1).getBottom(); 48029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final Rect listPadding = mListPadding; 48049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4805bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // "effective padding" In this case is the amount of padding that affects 4806bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // how much space should not be filled by items. If we don't clip to padding 4807bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell // there is no effective padding. 4808bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingTop = 0; 4809bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell int effectivePaddingBottom = 0; 4810bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 4811bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingTop = listPadding.top; 4812bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell effectivePaddingBottom = listPadding.bottom; 4813bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell } 4814bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell 48159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // FIXME account for grid vertical spacing too? 4816bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int spaceAbove = effectivePaddingTop - firstTop; 4817bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell final int end = getHeight() - effectivePaddingBottom; 48189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int spaceBelow = lastBottom - end; 48199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int height = getHeight() - mPaddingBottom - mPaddingTop; 48219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (deltaY < 0) { 48229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.max(-(height - 1), deltaY); 48239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project deltaY = Math.min(height - 1, deltaY); 48259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (incrementalDeltaY < 0) { 48289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.max(-(height - 1), incrementalDeltaY); 48299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 48309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project incrementalDeltaY = Math.min(height - 1, incrementalDeltaY); 48319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4833458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int firstPosition = mFirstPosition; 48349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4835637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell // Update our guesses for where the first and last views are 4836637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition == 0) { 4837bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mFirstPositionDistanceGuess = firstTop - listPadding.top; 4838637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4839637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mFirstPositionDistanceGuess += incrementalDeltaY; 4840637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4841637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (firstPosition + childCount == mItemCount) { 4842bdccc2d3db85d6489ddf332871ebf082386bae53Adam Powell mLastPositionDistanceGuess = lastBottom + listPadding.bottom; 4843637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } else { 4844637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mLastPositionDistanceGuess += incrementalDeltaY; 4845637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 4846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 48470a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollDown = (firstPosition == 0 && 48480a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne firstTop >= listPadding.top && incrementalDeltaY >= 0); 48490a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne final boolean cannotScrollUp = (firstPosition + childCount == mItemCount && 48500a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne lastBottom <= getHeight() - listPadding.bottom && incrementalDeltaY <= 0); 48519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 48520a1b818b8c45c8b100eeabb5c59bb4d85cf90868Gilles Debunne if (cannotScrollDown || cannotScrollUp) { 4853637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return incrementalDeltaY != 0; 4854458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 48559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4856458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final boolean down = incrementalDeltaY < 0; 48579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4858029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell final boolean inTouchMode = isInTouchMode(); 4859029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (inTouchMode) { 4860029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell hideSelector(); 4861029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 48629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4863458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int headerViewsCount = getHeaderViewsCount(); 4864458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int footerViewsStart = mItemCount - getFooterViewsCount(); 48659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4866458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int start = 0; 4867458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int count = 0; 48689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4869458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 48708c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int top = -incrementalDeltaY; 48718c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48728c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell top += listPadding.top; 48738c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4874458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = 0; i < childCount; i++) { 4875458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4876458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getBottom() >= top) { 4877458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4878458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4879458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4880458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4881458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4882079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 48839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 48849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4885458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4886458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 48878c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell int bottom = getHeight() - incrementalDeltaY; 48888c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell if ((mGroupFlags & CLIP_TO_PADDING_MASK) == CLIP_TO_PADDING_MASK) { 48898c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell bottom -= listPadding.bottom; 48908c3e0fc84f69e9fe704dc20dd6c2bab1ce43fe93Adam Powell } 4891458034799861fef47e00d85d528b4dac5e00bd51Adam Powell for (int i = childCount - 1; i >= 0; i--) { 4892458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final View child = getChildAt(i); 4893458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (child.getTop() <= bottom) { 4894458034799861fef47e00d85d528b4dac5e00bd51Adam Powell break; 4895458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } else { 4896458034799861fef47e00d85d528b4dac5e00bd51Adam Powell start = i; 4897458034799861fef47e00d85d528b4dac5e00bd51Adam Powell count++; 4898458034799861fef47e00d85d528b4dac5e00bd51Adam Powell int position = firstPosition + i; 4899458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (position >= headerViewsCount && position < footerViewsStart) { 4900079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mRecycler.addScrapView(child, position); 49019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4904458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4905458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4906458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mMotionViewNewTop = mMotionViewOriginalTop + deltaY; 49079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4908458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = true; 49099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4910458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (count > 0) { 49119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project detachViewsFromParent(start, count); 4912539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.removeSkippedScrap(); 4913458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 4914539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 49159d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // invalidate before moving the children to avoid unnecessary invalidate 49169d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy // calls to bubble up from the children all the way to the top 49179d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy if (!awakenScrollBars()) { 49181fa179ef41c06bd19da70fd9bf95741238791940Adam Powell invalidate(); 49199d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy } 49209d849a2f6351caed83105b90cab79223ec2bfbd3Romain Guy 4921458034799861fef47e00d85d528b4dac5e00bd51Adam Powell offsetChildrenTopAndBottom(incrementalDeltaY); 49229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 4923458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (down) { 4924458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mFirstPosition += count; 4925458034799861fef47e00d85d528b4dac5e00bd51Adam Powell } 49264e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4927458034799861fef47e00d85d528b4dac5e00bd51Adam Powell final int absIncrementalDeltaY = Math.abs(incrementalDeltaY); 4928458034799861fef47e00d85d528b4dac5e00bd51Adam Powell if (spaceAbove < absIncrementalDeltaY || spaceBelow < absIncrementalDeltaY) { 4929458034799861fef47e00d85d528b4dac5e00bd51Adam Powell fillGap(down); 49309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 4931458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4932029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell if (!inTouchMode && mSelectedPosition != INVALID_POSITION) { 49332a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell final int childIndex = mSelectedPosition - mFirstPosition; 49342a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell if (childIndex >= 0 && childIndex < getChildCount()) { 4935079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(mSelectedPosition, getChildAt(childIndex)); 4936079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 4937079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else if (mSelectorPosition != INVALID_POSITION) { 4938079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final int childIndex = mSelectorPosition - mFirstPosition; 4939079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (childIndex >= 0 && childIndex < getChildCount()) { 4940079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn positionSelector(INVALID_POSITION, getChildAt(childIndex)); 49412a20ddd90bb9eeab56ffaa916ed062dfd5cf7fa6Adam Powell } 4942079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 4943079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorRect.setEmpty(); 4944029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell } 4945029cfbd6f28e1664e8ef77ea928560f20ac3fb8eAdam Powell 4946458034799861fef47e00d85d528b4dac5e00bd51Adam Powell mBlockLayoutRequests = false; 4947458034799861fef47e00d85d528b4dac5e00bd51Adam Powell 4948458034799861fef47e00d85d528b4dac5e00bd51Adam Powell invokeOnItemScrollListener(); 49494e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 4950458034799861fef47e00d85d528b4dac5e00bd51Adam Powell return false; 49519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of header views in the list. Header views are special views 49559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the top of the list that should not be recycled during a layout. 49569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of header views, 0 in the default implementation. 49589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getHeaderViewsCount() { 49609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the number of footer views in the list. Footer views are special views 49659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * at the bottom of the list that should not be recycled during a layout. 49669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The number of footer views, 0 in the default implementation. 49689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int getFooterViewsCount() { 49709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return 0; 49719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fills the gap left open by a touch-scroll. During a touch scroll, children that 49759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * remain on screen are shifted and the other ones are discarded. The role of this 49769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * method is to fill the gap thus created by performing a partial layout in the 49779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * empty space. 49789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 49799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param down true if the scroll is going down, false if it is going up 49809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 49819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void fillGap(boolean down); 49829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void hideSelector() { 49849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition != INVALID_POSITION) { 4985ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell if (mLayoutMode != LAYOUT_SPECIFIC) { 4986ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell mResurrectToPosition = mSelectedPosition; 4987ab3e1052823620a91a1330b31da6aaf530ed8c3bAdam Powell } 49889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNextSelectedPosition >= 0 && mNextSelectedPosition != mSelectedPosition) { 49899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = mNextSelectedPosition; 49909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectedPositionInt(INVALID_POSITION); 49929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(INVALID_POSITION); 49939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedTop = 0; 49949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 49969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 49979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 49989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A position to select. First we try mSelectedPosition. If that has been clobbered by 49999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * entering touch mode, we then try mResurrectToPosition. Values are pinned to the range 50009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * of items available in the adapter 50019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int reconcileSelectedPosition() { 50039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int position = mSelectedPosition; 50049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (position < 0) { 50059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = mResurrectToPosition; 50069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.max(0, position); 50089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project position = Math.min(position, mItemCount - 1); 50099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return position; 50109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Find the row closest to y. This row will be used as the motion row when scrolling 50149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param y Where the user touched 50164cd47702f00a2fd6d6bc16c5398edb884d98bdcaAdam Powell * @return The position of the first (or only) item in the row containing y 50179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract int findMotionRow(int y); 50199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5021637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * Find the row closest to y. This row will be used as the motion row when scrolling. 5022637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * 5023637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @param y Where the user touched 5024637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell * @return The position of the first (or only) item in the row closest to y 5025637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell */ 5026637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell int findClosestMotionRow(int y) { 5027637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int childCount = getChildCount(); 5028637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (childCount == 0) { 5029637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return INVALID_POSITION; 5030637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5031637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5032637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell final int motionRow = findMotionRow(y); 5033637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell return motionRow != INVALID_POSITION ? motionRow : mFirstPosition + childCount - 1; 5034637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5035637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 5036637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell /** 50379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Causes all the views to be rebuilt and redrawn. 50389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void invalidateViews() { 50409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mDataChanged = true; 50419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project rememberSyncState(); 50429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project requestLayout(); 50439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invalidate(); 50449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50454e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown 50464e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown /** 50478d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * If there is a selection returns false. 50488d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown * Otherwise resurrects the selection and returns true if resurrected. 50494e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown */ 50508d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown boolean resurrectSelectionIfNeeded() { 5051becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell if (mSelectedPosition < 0 && resurrectSelection()) { 5052becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell updateSelectorState(); 5053becb0be2bb769e819774d32d6f9e4f6b31668157Adam Powell return true; 50544e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50558d6d3b83fb765eefc6fd38de77f1f45d2523ab89Jeff Brown return false; 50564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown } 50579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes the item at the supplied position selected. 50609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 50619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position the position of the new selection 50629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project abstract void setSelectionInt(int position); 50649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 50669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Attempt to bring the selection back if the user is switching from touch 50679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to trackball mode 50689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return Whether selection was set to something. 50699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 50709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean resurrectSelection() { 50719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int childCount = getChildCount(); 50729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (childCount <= 0) { 50749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 50759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedTop = 0; 50789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedPos; 50799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenTop = mListPadding.top; 50809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childrenBottom = mBottom - mTop - mListPadding.bottom; 50819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int firstPosition = mFirstPosition; 50829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int toPosition = mResurrectToPosition; 50839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean down = true; 50849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition >= firstPosition && toPosition < firstPosition + childCount) { 50869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = toPosition; 50879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View selected = getChildAt(selectedPos - mFirstPosition); 50899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = selected.getTop(); 50909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectedBottom = selected.getBottom(); 50919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 50929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are scrolled, don't get in the fade 50939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedTop < childrenTop) { 50949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenTop + getVerticalFadingEdgeLength(); 50959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (selectedBottom > childrenBottom) { 50969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = childrenBottom - selected.getMeasuredHeight() 50979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project - getVerticalFadingEdgeLength(); 50989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 50999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (toPosition < firstPosition) { 51019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Default to selecting whatever is first 51029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition; 51039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 51049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == 0) { 51089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remember the position of the first item 51099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we are scrolled at all 51119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition > 0 || top < childrenTop) { 51129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are scrolled, don't select anything that is 51139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // in the fade region 51149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenTop += getVerticalFadingEdgeLength(); 51159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (top >= childrenTop) { 51189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found a view whose top is fully visisble 51199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int itemCount = mItemCount; 51269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project down = false; 51279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + childCount - 1; 51289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = childCount - 1; i >= 0; i--) { 51309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View v = getChildAt(i); 51319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int top = v.getTop(); 51329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottom = v.getBottom(); 51339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (i == childCount - 1) { 51359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (firstPosition + childCount < itemCount || bottom > childrenBottom) { 51379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project childrenBottom -= getVerticalFadingEdgeLength(); 51389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (bottom <= childrenBottom) { 51429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = firstPosition + i; 51439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedTop = top; 51449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 51459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 51519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeCallbacks(mFlingRunnable); 51524032252c997be9f5d013054dc23ace855007b3a5Adam Powell if (mPositionScroller != null) { 51534032252c997be9f5d013054dc23ace855007b3a5Adam Powell mPositionScroller.stop(); 51544032252c997be9f5d013054dc23ace855007b3a5Adam Powell } 51559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTouchMode = TOUCH_MODE_REST; 51569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project clearScrollingCache(); 51579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSpecificTop = selectedTop; 51589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = lookForSelectablePosition(selectedPos, down); 51599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectedPos >= firstPosition && selectedPos <= getLastVisiblePosition()) { 51609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SPECIFIC; 51613c7b96a3466d05ad9979e86f44eb61a12ef67da3Justin Koh updateSelectorState(); 51629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setSelectionInt(selectedPos); 51639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project invokeOnItemScrollListener(); 51649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 51659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectedPos = INVALID_POSITION; 51669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project reportScrollStateChange(OnScrollListener.SCROLL_STATE_IDLE); 51689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 51699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return selectedPos >= 0; 51709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 51719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 517214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell void confirmCheckedPositionsById() { 517314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Clear out the positional check states, we'll rebuild it below from IDs. 517414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.clear(); 517514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 517614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean checkedCountChanged = false; 517714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int checkedIndex = 0; checkedIndex < mCheckedIdStates.size(); checkedIndex++) { 517814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long id = mCheckedIdStates.keyAt(checkedIndex); 517914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int lastPos = mCheckedIdStates.valueAt(checkedIndex); 518014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 518114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long lastPosId = mAdapter.getItemId(lastPos); 518214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id != lastPosId) { 518314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell // Look around to see if the ID is nearby. If not, uncheck it. 518414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int start = Math.max(0, lastPos - CHECK_POSITION_SEARCH_DISTANCE); 518514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final int end = Math.min(lastPos + CHECK_POSITION_SEARCH_DISTANCE, mItemCount); 518614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell boolean found = false; 518714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell for (int searchPos = start; searchPos < end; searchPos++) { 518814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell final long searchId = mAdapter.getItemId(searchPos); 518914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (id == searchId) { 519014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell found = true; 519114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(searchPos, true); 519214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.setValueAt(checkedIndex, searchPos); 519314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell break; 519414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 519514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 519614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 519714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (!found) { 519814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedIdStates.delete(id); 519914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedIndex--; 520014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckedItemCount--; 520114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell checkedCountChanged = true; 520214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceActionMode != null && mMultiChoiceModeCallback != null) { 520314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mMultiChoiceModeCallback.onItemCheckedStateChanged(mChoiceActionMode, 520414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell lastPos, id, false); 520514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 520614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 520714c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } else { 520814c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mCheckStates.put(lastPos, true); 520914c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 521214c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (checkedCountChanged && mChoiceActionMode != null) { 521314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell mChoiceActionMode.invalidate(); 521414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 521614c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell 52179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 52189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected void handleDataChanged() { 52199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int count = mItemCount; 5220ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell int lastHandledItemCount = mLastHandledItemCount; 5221ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell mLastHandledItemCount = mItemCount; 52229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 522314c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (mChoiceMode != CHOICE_MODE_NONE && mAdapter != null && mAdapter.hasStableIds()) { 522414c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell confirmCheckedPositionsById(); 522514c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell } 52269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5227539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell // TODO: In the future we can recycle these views based on stable ID instead. 5228539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mRecycler.clearTransientStateViews(); 5229539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 523014c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell if (count > 0) { 523114c080497e427c4dd9395df5bacb28bcc4291a32Adam Powell int newPos; 52329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int selectablePos; 52339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Find the row we are supposed to sync to 52359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mNeedSync) { 52369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Update this first, since setNextSelectedPositionInt inspects it 52379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5238e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 52399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52400785279dad89d90564f42beb2c4620bf387a966eAdam Powell if (mTranscriptMode == TRANSCRIPT_MODE_ALWAYS_SCROLL) { 52419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_FORCE_BOTTOM; 52429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 5243da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } else if (mTranscriptMode == TRANSCRIPT_MODE_NORMAL) { 5244da13dbae6fe0619101433ac861da460b8be63a36Adam Powell if (mForceTranscriptScroll) { 5245da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mForceTranscriptScroll = false; 5246da13dbae6fe0619101433ac861da460b8be63a36Adam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 5247da13dbae6fe0619101433ac861da460b8be63a36Adam Powell return; 5248da13dbae6fe0619101433ac861da460b8be63a36Adam Powell } 52490785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int childCount = getChildCount(); 5250ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell final int listBottom = getHeight() - getPaddingBottom(); 52510785279dad89d90564f42beb2c4620bf387a966eAdam Powell final View lastChild = getChildAt(childCount - 1); 52520785279dad89d90564f42beb2c4620bf387a966eAdam Powell final int lastBottom = lastChild != null ? lastChild.getBottom() : listBottom; 5253ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell if (mFirstPosition + childCount >= lastHandledItemCount && 5254ee78b173aae7ecb35b065c7499ac4f89b9c2f06eAdam Powell lastBottom <= listBottom) { 52550785279dad89d90564f42beb2c4620bf387a966eAdam Powell mLayoutMode = LAYOUT_FORCE_BOTTOM; 52560785279dad89d90564f42beb2c4620bf387a966eAdam Powell return; 52570785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52580785279dad89d90564f42beb2c4620bf387a966eAdam Powell // Something new came in and we didn't scroll; give the user a clue that 52590785279dad89d90564f42beb2c4620bf387a966eAdam Powell // there's something new. 52600785279dad89d90564f42beb2c4620bf387a966eAdam Powell awakenScrollBars(); 52610785279dad89d90564f42beb2c4620bf387a966eAdam Powell } 52629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (mSyncMode) { 52649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_SELECTED_POSITION: 52659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isInTouchMode()) { 52669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We saved our state when not in touch mode. (We know this because 52679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // mSyncMode is SYNC_SELECTED_POSITION.) Now we are trying to 52689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // restore in touch mode. Just leave mSyncPosition as it is (possibly 52699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // adjusting if the available range changed) and return. 52709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 52729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // See if we can find a position in the new data with the same 52769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // id as the old selection. This will change mSyncPosition. 52779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = findSyncPosition(); 52789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= 0) { 52799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Found it. Now verify that new selection is still selectable 52809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 52819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos == newPos) { 52829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Same row id is selected 52839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = newPos; 52849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSyncHeight == getHeight()) { 52869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // If we are at the same height as when we saved state, try 52879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // to restore the scroll position too. 52889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 52899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 52909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We are not the same height as when the selection was saved, so 52919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // don't try to restore the exact position 52929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SET_SELECTION; 52939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 52959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Restore selection 52969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(newPos); 52979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 52989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 52999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 53029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case SYNC_FIRST_POSITION: 53039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Leave mSyncPosition as it is -- just pin to available range 53049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = LAYOUT_SYNC; 53059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSyncPosition = Math.min(Math.max(0, mSyncPosition), count - 1); 53069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!isInTouchMode()) { 53129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We couldn't find matching data -- try to use the same position 53139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = getSelectedItemPosition(); 53149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pin position to the available range 53169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos >= count) { 53179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = count - 1; 53189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (newPos < 0) { 53209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project newPos = 0; 53219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we select something selectable -- first look down 53249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, true); 53259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Looking down didn't work -- try looking up 53319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project selectablePos = lookForSelectablePosition(newPos, false); 53329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (selectablePos >= 0) { 53339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project setNextSelectedPositionInt(selectablePos); 53349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 53389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // We already know where we want to resurrect the selection 53409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mResurrectToPosition >= 0) { 53419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 53429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Nothing is selected. Give up and reset everything. 53489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mLayoutMode = mStackFromBottom ? LAYOUT_FORCE_BOTTOM : LAYOUT_FORCE_TOP; 53499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedPosition = INVALID_POSITION; 53509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mSelectedRowId = INVALID_ROW_ID; 53519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedPosition = INVALID_POSITION; 53529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNextSelectedRowId = INVALID_ROW_ID; 53539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mNeedSync = false; 5354e181bd9b5e6a3e5382a1ff3c40b9ce2cb43c7971Dianne Hackborn mPendingSync = null; 5355079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn mSelectorPosition = INVALID_POSITION; 53569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkSelectionChanged(); 53579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 535943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy @Override 536043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy protected void onDisplayHint(int hint) { 536143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy super.onDisplayHint(hint); 536243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy switch (hint) { 536343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case INVISIBLE: 536443c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 536543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy dismissPopup(); 536643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 536743c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 536843c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy case VISIBLE: 536943c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mFiltered && mPopup != null && !mPopup.isShowing()) { 537043c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy showPopup(); 537143c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537243c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy break; 537343c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537424562487126b48c8ff39a42b76f3705f238da6c8Romain Guy mPopupHidden = hint == INVISIBLE; 537543c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy } 537643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy 53779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Removes the filter window 53799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 5380d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy private void dismissPopup() { 53819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null) { 53829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.dismiss(); 53839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 53869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 53879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Shows the filter window 53889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 53899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void showPopup() { 53909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we have a window before showing the popup 53919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (getWindowVisibility() == View.VISIBLE) { 53924df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project createTextFilter(true); 5393b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project positionPopup(); 53949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Make sure we get focus if we are showing the popup 53959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project checkFocus(); 53969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 53989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5399b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project private void positionPopup() { 54009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int screenHeight = getResources().getDisplayMetrics().heightPixels; 54019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int[] xy = new int[2]; 54029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getLocationOnScreen(xy); 540324443ea3992e372e47daa50266b0f2ec38cac388Romain Guy // TODO: The 20 below should come from the theme 54049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // TODO: And the gravity should be defined in the theme as well 54059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int bottomGap = screenHeight - xy[1] - getHeight() + (int) (mDensityScale * 20); 5406b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!mPopup.isShowing()) { 54079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.showAtLocation(this, Gravity.BOTTOM | Gravity.CENTER_HORIZONTAL, 54089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project xy[0], bottomGap); 54099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 54109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.update(xy[0], bottomGap, -1, -1); 54119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * What is the distance between the source and destination rectangles given the direction of 54169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * focus navigation between them? The direction basically helps figure out more quickly what is 54179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * self evident by the relationship between the rects... 54189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param source the source rectangle 54209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param dest the destination rectangle 54219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param direction the direction 54229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return the distance between the rectangles 54239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project static int getDistance(Rect source, Rect dest, int direction) { 54259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int sX, sY; // source x, y 54269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int dX, dY; // dest x, y 54279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (direction) { 54289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_RIGHT: 54299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.right; 54309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left; 54329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_DOWN: 54359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.bottom; 54379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top; 54399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_LEFT: 54419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left; 54429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top + source.height() / 2; 54439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.right; 54449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.top + dest.height() / 2; 54459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case View.FOCUS_UP: 54479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sX = source.left + source.width() / 2; 54489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project sY = source.top; 54499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dX = dest.left + dest.width() / 2; 54509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dY = dest.bottom; 54519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54524e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_FORWARD: 54534e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown case View.FOCUS_BACKWARD: 54544e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sX = source.right + source.width() / 2; 54554e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown sY = source.top + source.height() / 2; 54564e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dX = dest.left + dest.width() / 2; 54574e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown dY = dest.top + dest.height() / 2; 54584e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown break; 54599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project default: 54609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("direction must be one of " 54614e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "{FOCUS_UP, FOCUS_DOWN, FOCUS_LEFT, FOCUS_RIGHT, " 54624e6319b73c85082e18d1c532b86336ddd1f8cfaaJeff Brown + "FOCUS_FORWARD, FOCUS_BACKWARD}."); 54639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaX = dX - sX; 54659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int deltaY = dY - sY; 54669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return deltaY * deltaY + deltaX * deltaX; 54679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 54709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean isInFilterMode() { 54719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 54729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 54759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sends a key to the text filter window 54769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param keyCode The keycode for the event 54789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param event The actual key event 54799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 54809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return True if the text filter handled the event, false otherwise. 54819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 54829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean sendToTextFilter(int keyCode, int count, KeyEvent event) { 5483b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (!acceptFilter()) { 54849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return false; 54859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 54869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 54879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean handled = false; 54889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean okToSend = true; 54899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (keyCode) { 54909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_UP: 54919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_DOWN: 54929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_LEFT: 54939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_RIGHT: 54949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_DPAD_CENTER: 54959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_ENTER: 54969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 54979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 54989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_BACK: 549983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn if (mFiltered && mPopup != null && mPopup.isShowing()) { 55008d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn if (event.getAction() == KeyEvent.ACTION_DOWN 55018d37426c754e9822feaa8c6cc0b7c13e8523e217Dianne Hackborn && event.getRepeatCount() == 0) { 5502b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown KeyEvent.DispatcherState state = getKeyDispatcherState(); 5503b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown if (state != null) { 5504b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown state.startTracking(event, this); 5505b3ea92235c9ccc1ff295839a8f324dcd1c83dd6fJeff Brown } 550683fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 550783fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } else if (event.getAction() == KeyEvent.ACTION_UP 550883fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn && event.isTracking() && !event.isCanceled()) { 550983fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn handled = true; 551083fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn mTextFilter.setText(""); 551183fe3f559249451706957b1a5f660b2b8272f114Dianne Hackborn } 55129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project okToSend = false; 55149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.KEYCODE_SPACE: 55169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Only send spaces once we are filtered 5517cf6c5720a759709db69f253c36646d22ceb23f90Romain Guy okToSend = mFiltered; 55189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5521b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project if (okToSend) { 55229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project createTextFilter(true); 55239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project KeyEvent forwardEvent = event; 55259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (forwardEvent.getRepeatCount() > 0) { 5526105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project forwardEvent = KeyEvent.changeTimeRepeat(event, event.getEventTime(), 0); 55279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int action = event.getAction(); 55309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project switch (action) { 55319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_DOWN: 55329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyDown(keyCode, forwardEvent); 55339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_UP: 55369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyUp(keyCode, forwardEvent); 55379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project case KeyEvent.ACTION_MULTIPLE: 55409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project handled = mTextFilter.onKeyMultiple(keyCode, count, event); 55419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project break; 55429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return handled; 55459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 55469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 55479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5548b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * Return an InputConnection for editing of the filter text. 5549b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5550b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5551b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public InputConnection onCreateInputConnection(EditorInfo outAttrs) { 5552c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (isTextFilterEnabled()) { 5553c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // XXX we need to have the text filter created, so we can get an 5554c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // InputConnection to proxy to. Unfortunately this means we pretty 5555c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project // much need to make it as soon as a list view gets focus. 5556c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project createTextFilter(false); 55571bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (mPublicInputConnection == null) { 55581bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mDefInputConnection = new BaseInputConnection(this, false); 55591bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mPublicInputConnection = new InputConnectionWrapper( 55601bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn mTextFilter.onCreateInputConnection(outAttrs), true) { 55611bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55621bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean reportFullscreenMode(boolean enabled) { 55631bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since it is 55641bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the "real" one the IME is talking with. 55651bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.reportFullscreenMode(enabled); 55661bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55671bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55681bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55691bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean performEditorAction(int editorAction) { 55701bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // The editor is off in its own window; we need to be 55711bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // the one that does this. 55721bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (editorAction == EditorInfo.IME_ACTION_DONE) { 55731bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn InputMethodManager imm = (InputMethodManager) 55741bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn getContext().getSystemService( 55751bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn Context.INPUT_METHOD_SERVICE); 55761bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn if (imm != null) { 55771bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn imm.hideSoftInputFromWindow(getWindowToken(), 0); 55781bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55791bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return true; 55801bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55811bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return false; 55821bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55831bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn 55841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn @Override 55851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn public boolean sendKeyEvent(KeyEvent event) { 55861bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // Use our own input connection, since the filter 55871bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn // text view may not be shown in a window so has 5588c6cc0f8c19d9eccf408a443fa2bf668af261dcd0Joe Onorato // no ViewAncestor to dispatch events with. 55891bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mDefInputConnection.sendKeyEvent(event); 55901bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn }; 55921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn } 55931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.inputType = EditorInfo.TYPE_CLASS_TEXT 55941bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn | EditorInfo.TYPE_TEXT_VARIATION_FILTER; 55951bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn outAttrs.imeOptions = EditorInfo.IME_ACTION_DONE; 55961bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn return mPublicInputConnection; 5597c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project } 5598c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project return null; 5599b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56000a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5601b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 5602b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * For filtering we proxy an input connection to an internal text editor, 5603b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project * and this allows the proxying to happen. 5604b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project */ 5605b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project @Override 5606b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project public boolean checkInputConnectionProxy(View view) { 5607b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project return view == mTextFilter; 5608b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project } 56090a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 5610b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project /** 56119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Creates the window for the text filter and populates it with an EditText field; 56129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 56139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param animateEntrance true if the window should appear with an animation 56149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void createTextFilter(boolean animateEntrance) { 56169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup == null) { 56179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Context c = getContext(); 56189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project PopupWindow p = new PopupWindow(c); 56194df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project LayoutInflater layoutInflater = (LayoutInflater) 56204df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project c.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 56219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter = (EditText) layoutInflater.inflate( 56229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project com.android.internal.R.layout.typing_filter, null); 5623b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // For some reason setting this as the "real" input type changes 5624b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // the text view in some way that it doesn't work, and I don't 5625b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project // want to figure out why this is. 5626b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project mTextFilter.setRawInputType(EditorInfo.TYPE_CLASS_TEXT 5627b2a3dd88a53cc8c6d19f6dc8ec4f3d6c4abd9b54The Android Open Source Project | EditorInfo.TYPE_TEXT_VARIATION_FILTER); 5628105925376f8d0f6b318c9938c7b83ef7fef094daThe Android Open Source Project mTextFilter.setImeOptions(EditorInfo.IME_FLAG_NO_EXTRACT_UI); 56299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.addTextChangedListener(this); 56309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setFocusable(false); 56319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setTouchable(false); 56329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setInputMethodMode(PopupWindow.INPUT_METHOD_NOT_NEEDED); 56339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setContentView(mTextFilter); 56349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setWidth(LayoutParams.WRAP_CONTENT); 56359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setHeight(LayoutParams.WRAP_CONTENT); 56369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project p.setBackgroundDrawable(null); 56379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup = p; 56389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project getViewTreeObserver().addOnGlobalLayoutListener(this); 5639d6a463a9f23b3901bf729f2f27a6bb8f78b95248Romain Guy mGlobalLayoutListenerAddedFilter = true; 56409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (animateEntrance) { 56429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilter); 56439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mPopup.setAnimationStyle(com.android.internal.R.style.Animation_TypingFilterRestore); 56459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clear the text filter. 56509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void clearTextFilter() { 56529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mFiltered) { 56539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTextFilter.setText(""); 56549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 56559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mPopup != null && mPopup.isShowing()) { 56569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns if the ListView currently has a text filter. 56639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean hasTextFilter() { 56659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mFiltered; 56669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onGlobalLayout() { 56699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (isShown()) { 56709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the popup if we are filtered 567124562487126b48c8ff39a42b76f3705f238da6c8Romain Guy if (mFiltered && mPopup != null && !mPopup.isShowing() && !mPopupHidden) { 56729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 56739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 56759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Hide the popup when we are no longer visible 567643c9cdffb619f93d9d4525dffd05701dc9c8c4bfRomain Guy if (mPopup != null && mPopup.isShowing()) { 56779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project dismissPopup(); 56789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56841bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 56851bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 56869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void beforeTextChanged(CharSequence s, int start, int count, int after) { 56889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 56899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 56909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 56911bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Performs 56921bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * the actual filtering as the text changes, and takes care of hiding and 56931bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * showing the popup displaying the currently entered filter text. 56949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 56959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onTextChanged(CharSequence s, int start, int before, int count) { 5696c39a6e0c51e182338deb8b63d07933b585134929The Android Open Source Project if (mPopup != null && isTextFilterEnabled()) { 56979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int length = s.length(); 56989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project boolean showing = mPopup.isShowing(); 56999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (!showing && length > 0) { 57009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Show the filter popup if necessary 57019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project showPopup(); 57029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = true; 57039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else if (showing && length == 0) { 57049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Remove the filter popup if the user has cleared all text 57051bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn dismissPopup(); 57069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFiltered = false; 57079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mAdapter instanceof Filterable) { 57099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project Filter f = ((Filterable) mAdapter).getFilter(); 57109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Filter should not be null when we reach this part 57119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (f != null) { 57129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project f.filter(s, this); 57139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 57149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalStateException("You cannot call onTextChanged with a non " 57159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project + "filterable adapter"); 57169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57221bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * For our text watcher that is associated with the text filter. Does 57231bf5e22da72b477c8b7a45ed85a4dba94be39db5Dianne Hackborn * nothing. 57249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void afterTextChanged(Editable s) { 57269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void onFilterComplete(int count) { 57299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mSelectedPosition < 0 && count > 0) { 57309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mResurrectToPosition = INVALID_POSITION; 57319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project resurrectSelection(); 57329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 5736aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell protected ViewGroup.LayoutParams generateDefaultLayoutParams() { 5737aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell return new AbsListView.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 5738aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell ViewGroup.LayoutParams.WRAP_CONTENT, 0); 5739aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell } 5740aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell 5741aebd28f729fa28016d70551d0372ab7fcd56ee1aAdam Powell @Override 57429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected ViewGroup.LayoutParams generateLayoutParams(ViewGroup.LayoutParams p) { 57439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new LayoutParams(p); 57449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams generateLayoutParams(AttributeSet attrs) { 57489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return new AbsListView.LayoutParams(getContext(), attrs); 57499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project protected boolean checkLayoutParams(ViewGroup.LayoutParams p) { 57539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return p instanceof AbsListView.LayoutParams; 57549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts the list or grid into transcript mode. In this mode the list or grid will always scroll 57589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * to the bottom to show new items. 57599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param mode the transcript mode to set 57619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_DISABLED 57639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_NORMAL 57649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see #TRANSCRIPT_MODE_ALWAYS_SCROLL 57659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setTranscriptMode(int mode) { 57679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mTranscriptMode = mode; 57689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Returns the current transcript mode. 57729066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return {@link #TRANSCRIPT_MODE_DISABLED}, {@link #TRANSCRIPT_MODE_NORMAL} or 57749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link #TRANSCRIPT_MODE_ALWAYS_SCROLL} 57759066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getTranscriptMode() { 57779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mTranscriptMode; 57789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project @Override 57819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getSolidColor() { 57829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 57839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 57849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 57859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 57869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 57875be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * on top of a solid, single-color, opaque background. 57885be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * 57895be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * Zero means that what's behind this object is translucent (non solid) or is not made of a 57905be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * single color. This hint will not affect any existing background drawable set on this view ( 57915be37c81a72c2085db87ae9e6f235de358e4b4cbDaisuke Miyakawa * typically set via {@link #setBackgroundDrawable(Drawable)}). 57929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 57939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param color The background color 57949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 57959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setCacheColorHint(int color) { 579652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (color != mCacheColorHint) { 579752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mCacheColorHint = color; 579852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy int count = getChildCount(); 579952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; i++) { 580052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy getChildAt(i).setDrawingCacheBackgroundColor(color); 580152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 580252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy mRecycler.setCacheColorHint(color); 580352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 58049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * When set to a non-zero value, the cache color hint indicates that this list is always drawn 58089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * on top of a solid, single-color, opaque background 58099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The cache color hint 58119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58127b5b6abf852c039983eded25ebe43a70fef5a4abRomain Guy @ViewDebug.ExportedProperty(category = "drawing") 58139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public int getCacheColorHint() { 58149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return mCacheColorHint; 58159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 58189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views (excluding headers and footers) held by this AbsListView into the supplied 58199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * List. This includes views displayed on the screen as well as views stored in AbsListView's 58209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * internal view recycler. 58219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 58229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param views A list into which to put the reclaimed views 58239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 58249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void reclaimViews(List<View> views) { 58259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int childCount = getChildCount(); 58269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project RecyclerListener listener = mRecycler.mRecyclerListener; 58279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 58289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Reclaim views on screen 58299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 58309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 583113922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 58329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't reclaim header or footer views, or views that should be ignored 58339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp != null && mRecycler.shouldRecycleViewType(lp.viewType)) { 58349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.add(child); 5835c1d7e770e123adfa992d013fa294693d077cbc78alanv child.setAccessibilityDelegate(null); 58369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (listener != null) { 58379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Pretend they went through the scrap heap 58389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project listener.onMovedToScrapHeap(child); 58399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.reclaimScrapViews(views); 58439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeAllViewsInLayout(); 58449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 58459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5846637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell private void finishGlows() { 5847637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell if (mEdgeGlowTop != null) { 5848637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowTop.finish(); 5849637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell mEdgeGlowBottom.finish(); 5850637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5851637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell } 5852637d337b58d8eec6de19230a5dd5ca5581c0478dAdam Powell 585313922e03037d71a538f24ddf61c0b61bb4eb5af0Romain Guy /** 5854499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Sets up this AbsListView to use a remote views adapter which connects to a RemoteViewsService 5855499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * through the specified intent. 5856499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * @param intent the intent used to identify the RemoteViewsService for the adapter to connect to. 5857499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5858499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void setRemoteViewsAdapter(Intent intent) { 58599b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 58609b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 58613ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteAdapter != null) { 58623ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 58633ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 58643ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteAdapter.getRemoteViewsServiceIntent()); 58653ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 58663ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 58673ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 58689b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 58692148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58709b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 5871499cb9f516062b654952d282f211bee44c31a3c2Winson Chung mRemoteAdapter = new RemoteViewsAdapter(getContext(), intent, this); 5872335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen if (mRemoteAdapter.isDataReady()) { 5873335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen setAdapter(mRemoteAdapter); 5874335c3b681bf1c118d9bf22d1a508c87173632ec6Adam Cohen } 5875499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5876499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5877499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 58782148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 58792148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 58802148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 58812148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 58822148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 58832148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 58842148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 58852148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 5886499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter connects to the RemoteViewsService. 5887499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 588816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 5889499cb9f516062b654952d282f211bee44c31a3c2Winson Chung if (mRemoteAdapter != mAdapter) { 5890499cb9f516062b654952d282f211bee44c31a3c2Winson Chung setAdapter(mRemoteAdapter); 58912148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 58922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteAdapter.notifyDataSetChanged(); 58932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 58942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 589516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5896fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteAdapter != null) { 5897fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteAdapter.superNotifyDataSetChanged(); 589816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 5899499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 590016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 5901499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5902499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5903499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5904499cb9f516062b654952d282f211bee44c31a3c2Winson Chung * Called back when the adapter disconnects from the RemoteViewsService. 5905499cb9f516062b654952d282f211bee44c31a3c2Winson Chung */ 5906499cb9f516062b654952d282f211bee44c31a3c2Winson Chung public void onRemoteAdapterDisconnected() { 5907fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 5908fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 5909fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 5910fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 5911fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 5912499cb9f516062b654952d282f211bee44c31a3c2Winson Chung } 5913499cb9f516062b654952d282f211bee44c31a3c2Winson Chung 5914499cb9f516062b654952d282f211bee44c31a3c2Winson Chung /** 5915b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * Hints the RemoteViewsAdapter, if it exists, about which views are currently 5916b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen * being displayed by the AbsListView. 5917b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen */ 5918b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen void setVisibleRangeHint(int start, int end) { 5919b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteAdapter != null) { 5920b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteAdapter.setVisibleRangeHint(start, end); 5921b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5922b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 5923b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen 5924b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen /** 59259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Sets the recycler listener to be notified whenever a View is set aside in 59269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * the recycler for later reuse. This listener can be used to free resources 59279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to the View. 59289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param listener The recycler listener to be notified of views set aside 59309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * in the recycler. 59319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 59329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 59339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 59349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 59359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setRecyclerListener(RecyclerListener listener) { 59369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecycler.mRecyclerListener = listener; 59379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 59389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 5939b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell class AdapterDataSetObserver extends AdapterView<ListAdapter>.AdapterDataSetObserver { 5940b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5941b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onChanged() { 5942b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onChanged(); 5943b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5944b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5945b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5946b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5947b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 5948b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell @Override 5949b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell public void onInvalidated() { 5950b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell super.onInvalidated(); 5951b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell if (mFastScroller != null) { 5952b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell mFastScroller.onSectionsChanged(); 5953b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5954b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5955b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell } 5956b1f498afc379ec84b86137e91afda6eccb8f4c0aAdam Powell 59579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 5958f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * A MultiChoiceModeListener receives events for {@link AbsListView#CHOICE_MODE_MULTIPLE_MODAL}. 5959f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * It acts as the {@link ActionMode.Callback} for the selection mode and also receives 5960f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * {@link #onItemCheckedStateChanged(ActionMode, int, long, boolean)} events when the user 5961f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * selects and deselects list items. 5962f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5963f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public interface MultiChoiceModeListener extends ActionMode.Callback { 5964f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 5965f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * Called when an item is checked or unchecked during selection mode. 5966f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * 5967f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param mode The {@link ActionMode} providing the selection mode 5968f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param position Adapter position of the item that was checked or unchecked 5969f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param id Adapter ID of the item that was checked or unchecked 5970f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * @param checked <code>true</code> if the item is now checked, <code>false</code> 5971f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell * if the item is now unchecked. 5972f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell */ 5973f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 5974f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked); 5975f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5976f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5977f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell class MultiChoiceModeWrapper implements MultiChoiceModeListener { 5978f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell private MultiChoiceModeListener mWrapped; 5979f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5980f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void setWrapped(MultiChoiceModeListener wrapped) { 5981f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped = wrapped; 5982f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5983f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5984a798170f2abe198f806b12dd904830bc25257525Adam Powell public boolean hasWrappedCallback() { 5985a798170f2abe198f806b12dd904830bc25257525Adam Powell return mWrapped != null; 5986a798170f2abe198f806b12dd904830bc25257525Adam Powell } 5987a798170f2abe198f806b12dd904830bc25257525Adam Powell 5988f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onCreateActionMode(ActionMode mode, Menu menu) { 5989f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (mWrapped.onCreateActionMode(mode, menu)) { 5990f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Initialize checked graphic state? 5991f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(false); 5992f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return true; 5993f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5994f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return false; 5995f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 5996f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 5997f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onPrepareActionMode(ActionMode mode, Menu menu) { 5998f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onPrepareActionMode(mode, menu); 5999f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6000f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6001f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public boolean onActionItemClicked(ActionMode mode, MenuItem item) { 6002f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell return mWrapped.onActionItemClicked(mode, item); 6003f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6004f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6005f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onDestroyActionMode(ActionMode mode) { 6006f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onDestroyActionMode(mode); 6007f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mChoiceActionMode = null; 6008f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6009f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // Ending selection mode means deselecting everything. 6010f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell clearChoices(); 6011f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6012f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mDataChanged = true; 6013f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell rememberSyncState(); 6014f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell requestLayout(); 6015f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6016f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell setLongClickable(true); 6017f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6018f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6019f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell public void onItemCheckedStateChanged(ActionMode mode, 6020f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell int position, long id, boolean checked) { 6021f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mWrapped.onItemCheckedStateChanged(mode, position, id, checked); 6022f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6023f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell // If there are no items selected we no longer need the selection mode. 6024f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell if (getCheckedItemCount() == 0) { 6025f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell mode.finish(); 6026f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6027f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6028f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell } 6029f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell 6030f343e1ba7e796120eefa917dbf78348feea98e11Adam Powell /** 60319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * AbsListView extends LayoutParams to provide a place to hold the view type. 60329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 60339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static class LayoutParams extends ViewGroup.LayoutParams { 60349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * View type for this view, as returned by 60369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * {@link android.widget.Adapter#getItemViewType(int) } 60379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6038bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list", mapping = { 60399bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_IGNORE, to = "ITEM_VIEW_TYPE_IGNORE"), 60409bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell @ViewDebug.IntToString(from = ITEM_VIEW_TYPE_HEADER_OR_FOOTER, to = "ITEM_VIEW_TYPE_HEADER_OR_FOOTER") 60419bf3c128509de5bd66222943a00acfcd1000cd62Adam Powell }) 60429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType; 60439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60444df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project /** 60454df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * When this boolean is set, the view has been added to the AbsListView 60464df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * at least once. It is used to know whether headers/footers have already 60474df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * been added to the list view and whether they should be treated as 60484df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project * recycled views or not. 60494df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project */ 6050bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60514df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project boolean recycledHeaderFooter; 60524df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project 60530bf88594c43ced48d862d122e3e84967b3b63658Romain Guy /** 60540bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * When an AbsListView is measured with an AT_MOST measure spec, it needs 60550bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * to obtain children views to measure itself. When doing so, the children 60560bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * are not attached to the window, but put in the recycler which assumes 60570bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * they've been attached before. Setting this flag will force the reused 60580bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * view to be attached to the window rather than just attached to the 60590bf88594c43ced48d862d122e3e84967b3b63658Romain Guy * parent. 60600bf88594c43ced48d862d122e3e84967b3b63658Romain Guy */ 6061bea95162ca25bd00b0479d93739b6283795c3986Konstantin Lopyrev @ViewDebug.ExportedProperty(category = "list") 60620bf88594c43ced48d862d122e3e84967b3b63658Romain Guy boolean forceAdd; 60630bf88594c43ced48d862d122e3e84967b3b63658Romain Guy 6064079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn /** 6065079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * The position the view was removed from when pulled out of the 6066079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * scrap heap. 6067079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn * @hide 6068079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn */ 6069079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int scrappedFromPosition; 6070079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6071539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6072539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * The ID the view represents 6073539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6074539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell long itemId = -1; 6075539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 60769066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(Context c, AttributeSet attrs) { 60779066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(c, attrs); 60789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h) { 60819066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60829066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60849066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(int w, int h, int viewType) { 60859066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(w, h); 60869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project this.viewType = viewType; 60879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public LayoutParams(ViewGroup.LayoutParams source) { 60909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project super(source); 60919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 60939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 60949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 60959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * A RecyclerListener is used to receive a notification whenever a View is placed 60969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * inside the RecycleBin's scrap heap. This listener is used to free resources 60979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated to Views placed in the RecycleBin. 60989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 60999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecycleBin 61009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public static interface RecyclerListener { 61039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Indicates that the specified View was moved into the recycler's scrap heap. 61059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The view is not displayed on screen any more and any expensive resource 61069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * associated with the view should be discarded. 61079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param view 61099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void onMovedToScrapHeap(View view); 61119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The RecycleBin facilitates reuse of views across layouts. The RecycleBin has two levels of 61159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * storage: ActiveViews and ScrapViews. ActiveViews are those views which were onscreen at the 61169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * start of a layout. By construction, they are displaying current information. At the end of 61179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, all views in ActiveViews are demoted to ScrapViews. ScrapViews are old views that 61189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * could potentially be used by the adapter to avoid allocating views unnecessarily. 61199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 61209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView#setRecyclerListener(android.widget.AbsListView.RecyclerListener) 61219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @see android.widget.AbsListView.RecyclerListener 61229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project class RecycleBin { 61249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private RecyclerListener mRecyclerListener; 61259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * The position of the first view stored in mActiveViews. 61289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mFirstActivePosition; 61309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views that were on screen at the start of layout. This array is populated at the start of 61339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * layout, and at the end of layout all view in mActiveViews are moved to mScrapViews. 61349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Views in mActiveViews represent a contiguous range of Views, with position of the first 61359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * view store in mFirstActivePosition. 61369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private View[] mActiveViews = new View[0]; 61389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Unsorted views that can be used by the adapter as a convert view. 61419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View>[] mScrapViews; 61439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private int mViewTypeCount; 61459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private ArrayList<View> mCurrentScrap; 61479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6148539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private ArrayList<View> mSkippedScrap; 6149539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6150539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell private SparseArray<View> mTransientStateViews; 6151539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 61529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public void setViewTypeCount(int viewTypeCount) { 61539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (viewTypeCount < 1) { 61549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project throw new IllegalArgumentException("Can't have a viewTypeCount < 1"); 61559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project //noinspection unchecked 61579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View>[] scrapViews = new ArrayList[viewTypeCount]; 61589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; i++) { 61599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews[i] = new ArrayList<View>(); 61609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mViewTypeCount = viewTypeCount; 61629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap = scrapViews[0]; 61639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews = scrapViews; 61649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61654e30d89ceda832300f80bf73f4f58cd2b51bf112Mindy Pereira 6166f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell public void markChildrenDirty() { 6167f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell if (mViewTypeCount == 1) { 6168f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mCurrentScrap; 6169f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6170f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < scrapCount; i++) { 6171f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(i).forceLayout(); 6172f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6173f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } else { 6174f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int typeCount = mViewTypeCount; 6175f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int i = 0; i < typeCount; i++) { 6176f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final ArrayList<View> scrap = mScrapViews[i]; 6177f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell final int scrapCount = scrap.size(); 6178f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell for (int j = 0; j < scrapCount; j++) { 6179f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell scrap.get(j).forceLayout(); 6180f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6181f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6182f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 6183539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6184539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mTransientStateViews.size(); 6185539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6186539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.valueAt(i).forceLayout(); 6187539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6188539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6189f3c2edaa213e6d8c779ab819ff630b4ce389007cAdam Powell } 61900a63716ed0e44f7cd32b81a444429318d42d8f08Romain Guy 61919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project public boolean shouldRecycleViewType(int viewType) { 61929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return viewType >= 0; 61939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 61949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 61959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 61969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Clears the scrap heap. 61979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 61989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void clear() { 61999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 62009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mCurrentScrap; 62019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < scrapCount; i++) { 62039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - i), false); 62049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int typeCount = mViewTypeCount; 62079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < typeCount; i++) { 62089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrap = mScrapViews[i]; 62099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int scrapCount = scrap.size(); 62109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < scrapCount; j++) { 62119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrap.remove(scrapCount - 1 - j), false); 62129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6215539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6216539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6217539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 62189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Fill ActiveViews with all of the children of the AbsListView. 62229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param childCount The minimum number of views mActiveViews should hold 62249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param firstActivePosition The position of the first view that will be stored in 62259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews 62269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void fillActiveViews(int childCount, int firstActivePosition) { 62289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mActiveViews.length < childCount) { 62299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mActiveViews = new View[childCount]; 62309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62319066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mFirstActivePosition = firstActivePosition; 62329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < childCount; i++) { 62359066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View child = getChildAt(i); 62369c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy AbsListView.LayoutParams lp = (AbsListView.LayoutParams) child.getLayoutParams(); 62379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views into the scrap heap 62389c3184cc162ee8c10eabd3f996629a9397a1f551Romain Guy if (lp != null && lp.viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER) { 62399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Note: We do place AdapterView.ITEM_VIEW_TYPE_IGNORE in active views. 62409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // However, we will NOT place them into scrap views. 62414df2423a947bcd3f024cc3d3a1a315a8dc428598The Android Open Source Project activeViews[i] = child; 62429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 62469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Get the view corresponding to the specified position. The view will be removed from 62489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * mActiveViews if it is found. 62499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 62509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param position The position to look up in mActiveViews 62519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return The view if it is found, null otherwise 62529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getActiveView(int position) { 62549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int index = position - mFirstActivePosition; 62559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 62569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (index >=0 && index < activeViews.length) { 62579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View match = activeViews[index]; 62589066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[index] = null; 62599066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return match; 62609066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62619066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62629066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6264539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell View getTransientStateView(int position) { 6265539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6266539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6267539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6268539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int index = mTransientStateViews.indexOfKey(position); 6269539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (index < 0) { 6270539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return null; 6271539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6272539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final View result = mTransientStateViews.valueAt(index); 6273539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.removeAt(index); 6274539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return result; 6275539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6276539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6277539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 6278539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Dump any currently saved views with transient state. 6279539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6280539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void clearTransientStateViews() { 6281539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews != null) { 6282539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.clear(); 6283539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6284539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6285539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 62869066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 62879066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @return A view from the ScrapViews collection. These are unordered. 62889066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 62899066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project View getScrapView(int position) { 62909066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 6291079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mCurrentScrap, position); 62929066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 62939066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int whichScrap = mAdapter.getItemViewType(position); 62949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (whichScrap >= 0 && whichScrap < mScrapViews.length) { 6295079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return retrieveFromScrap(mScrapViews[whichScrap], position); 62969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 62989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return null; 62999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63009066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63019066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6302539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Put a view into the ScrapViews list. These views are unordered. 63039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * 63049066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * @param scrap The view to add 63059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 6306079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn void addScrapView(View scrap, int position) { 63079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project AbsListView.LayoutParams lp = (AbsListView.LayoutParams) scrap.getLayoutParams(); 63089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (lp == null) { 63099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6312539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell lp.scrappedFromPosition = position; 6313539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 63149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Don't put header or footer views or views that should be ignored 63159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // into the scrap heap 63169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int viewType = lp.viewType; 6317539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = scrap.hasTransientState(); 6318539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(viewType) || scrapHasTransientState) { 6319539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (viewType != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || scrapHasTransientState) { 6320539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6321539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap = new ArrayList<View>(); 6322539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6323539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.add(scrap); 6324539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6325539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6326539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6327539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6328539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6329057a585fba01d92c38f27a8c080622dfd0c6f556Adam Powell scrap.dispatchStartTemporaryDetach(); 6330539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(position, scrap); 63319b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 63329066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project return; 63339066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63349066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6335539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrap.dispatchStartTemporaryDetach(); 63369066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 63379066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mCurrentScrap.add(scrap); 63389066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 63399066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mScrapViews[viewType].add(scrap); 63409066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6342c1d7e770e123adfa992d013fa294693d077cbc78alanv scrap.setAccessibilityDelegate(null); 63439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mRecyclerListener != null) { 63449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(scrap); 63459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 6349539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell * Finish the removal of any views that skipped the scrap heap. 6350539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell */ 6351539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell void removeSkippedScrap() { 6352539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mSkippedScrap == null) { 6353539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell return; 6354539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6355539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final int count = mSkippedScrap.size(); 6356539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell for (int i = 0; i < count; i++) { 6357539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell removeDetachedView(mSkippedScrap.get(i), false); 6358539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6359539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mSkippedScrap.clear(); 6360539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6361539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell 6362539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell /** 63639066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Move all views remaining in mActiveViews to mScrapViews. 63649066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 63659066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void scrapActiveViews() { 63669066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View[] activeViews = mActiveViews; 63679066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean hasListener = mRecyclerListener != null; 63689066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final boolean multipleScraps = mViewTypeCount > 1; 63699066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63709066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project ArrayList<View> scrapViews = mCurrentScrap; 63719066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int count = activeViews.length; 6372a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy for (int i = count - 1; i >= 0; i--) { 63739066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final View victim = activeViews[i]; 63749066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (victim != null) { 6375079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn final AbsListView.LayoutParams lp 6376079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn = (AbsListView.LayoutParams) victim.getLayoutParams(); 6377079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int whichScrap = lp.viewType; 63789066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63799066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project activeViews[i] = null; 63809066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6381539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell final boolean scrapHasTransientState = victim.hasTransientState(); 6382539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (!shouldRecycleViewType(whichScrap) || scrapHasTransientState) { 63839066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project // Do not move views that should be ignored 6384539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (whichScrap != ITEM_VIEW_TYPE_HEADER_OR_FOOTER || 6385539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell scrapHasTransientState) { 63869b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy removeDetachedView(victim, false); 63879b1bb81fe256e3b342a7375be39da7e752eaf3d4Romain Guy } 6388539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (scrapHasTransientState) { 6389539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell if (mTransientStateViews == null) { 6390539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews = new SparseArray<View>(); 6391539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 6392539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell mTransientStateViews.put(mFirstActivePosition + i, victim); 6393539ee8716b4f81260bab2e9f3dc5d88d81c99985Adam Powell } 63949066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project continue; 63959066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 63969066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 63979066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (multipleScraps) { 63989066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews = mScrapViews[whichScrap]; 63999066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6400a440b002aa59e1455bdfa2c5a1ca51c74bbc19acRomain Guy victim.dispatchStartTemporaryDetach(); 6401079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn lp.scrappedFromPosition = mFirstActivePosition + i; 64029066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project scrapViews.add(victim); 64039066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 6404c1d7e770e123adfa992d013fa294693d077cbc78alanv victim.setAccessibilityDelegate(null); 64059066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (hasListener) { 64069066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project mRecyclerListener.onMovedToScrapHeap(victim); 64079066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64089066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64099066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64119066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project pruneScrapViews(); 64129066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64139066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64149066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64159066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Makes sure that the size of mScrapViews does not exceed the size of mActiveViews. 64169066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * (This can happen if an adapter does not recycle its views). 64179066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64189066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project private void pruneScrapViews() { 64199066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int maxViews = mActiveViews.length; 64209066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64219066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64229066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64239066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64249066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project int size = scrapPile.size(); 64259066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int extras = size - maxViews; 64269066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project size--; 64279066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int j = 0; j < extras; j++) { 64289066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project removeDetachedView(scrapPile.remove(size--), false); 64299066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64309066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6431bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell 6432bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (mTransientStateViews != null) { 6433bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell for (int i = 0; i < mTransientStateViews.size(); i++) { 6434bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell final View v = mTransientStateViews.valueAt(i); 6435bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell if (!v.hasTransientState()) { 6436bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell mTransientStateViews.removeAt(i); 6437bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell i--; 6438bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6439bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 6440bf1b81fb25b140fb9a55fc6d6b2383c851290432Adam Powell } 64419066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64429066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project 64439066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project /** 64449066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project * Puts all views in the scrap heap into the supplied list. 64459066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project */ 64469066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project void reclaimScrapViews(List<View> views) { 64479066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project if (mViewTypeCount == 1) { 64489066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(mCurrentScrap); 64499066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } else { 64509066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final int viewTypeCount = mViewTypeCount; 64519066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View>[] scrapViews = mScrapViews; 64529066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project for (int i = 0; i < viewTypeCount; ++i) { 64539066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project final ArrayList<View> scrapPile = scrapViews[i]; 64549066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project views.addAll(scrapPile); 64559066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64569066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 64579066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 645852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy 645952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy /** 646052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * Updates the cache color hint of all known views. 646152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * 646252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy * @param color The new cache color hint. 646352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy */ 646452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy void setCacheColorHint(int color) { 646552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (mViewTypeCount == 1) { 646652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mCurrentScrap; 646752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 646852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < scrapCount; i++) { 646952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy scrap.get(i).setDrawingCacheBackgroundColor(color); 647052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 647152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } else { 647252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int typeCount = mViewTypeCount; 647352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < typeCount; i++) { 647452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final ArrayList<View> scrap = mScrapViews[i]; 647552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int scrapCount = scrap.size(); 647652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int j = 0; j < scrapCount; j++) { 6477266e05179cc8f5fe6324510aa54bb8c1779d2f6cRomain Guy scrap.get(j).setDrawingCacheBackgroundColor(color); 647852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 647952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648152e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy // Just in case this is called during a layout pass 648252e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View[] activeViews = mActiveViews; 648352e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final int count = activeViews.length; 648452e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy for (int i = 0; i < count; ++i) { 648552e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy final View victim = activeViews[i]; 648652e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy if (victim != null) { 648752e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy victim.setDrawingCacheBackgroundColor(color); 648852e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 648952e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 649052e2ef8cac0cd6d78c2c2f5783846e03c636a54cRomain Guy } 64919066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project } 6492079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn 6493079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn static View retrieveFromScrap(ArrayList<View> scrapViews, int position) { 6494079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn int size = scrapViews.size(); 6495079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (size > 0) { 6496079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn // See if we still have a view for this position. 6497079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn for (int i=0; i<size; i++) { 6498079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn View view = scrapViews.get(i); 6499079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn if (((AbsListView.LayoutParams)view.getLayoutParams()) 6500079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn .scrappedFromPosition == position) { 6501079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn scrapViews.remove(i); 6502079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return view; 6503079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6504079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6505079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return scrapViews.remove(size - 1); 6506079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } else { 6507079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn return null; 6508079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 6509079e23575024e103358c982152afb7a720ae1a8aDianne Hackborn } 65109066cfe9886ac131c34d59ed0e2d287b0e3c0087The Android Open Source Project} 6511