AdapterViewAnimator.java revision b967392e0170af8cfd8053fd43fcdf8c46f703e9
13db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen/* 23db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Copyright (C) 2010 The Android Open Source Project 33db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 43db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Licensed under the Apache License, Version 2.0 (the "License"); 53db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * you may not use this file except in compliance with the License. 63db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * You may obtain a copy of the License at 73db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 83db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * http://www.apache.org/licenses/LICENSE-2.0 93db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Unless required by applicable law or agreed to in writing, software 113db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * distributed under the License is distributed on an "AS IS" BASIS, 123db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 133db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * See the License for the specific language governing permissions and 143db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * limitations under the License. 153db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 163db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 173db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenpackage android.widget; 183db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 19ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohenimport android.animation.AnimatorInflater; 20a18a86b43e40e3c15dcca0ae0148d641be9b25feChet Haaseimport android.animation.ObjectAnimator; 213db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.Context; 223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.Intent; 233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.res.TypedArray; 243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.os.Handler; 25b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.os.Parcel; 26b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.os.Parcelable; 273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.util.AttributeSet; 28a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohenimport android.view.MotionEvent; 293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.view.View; 30a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohenimport android.view.ViewConfiguration; 3144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewGroup; 323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 332148d43eb23c702e834c93ae427f822f32d280a2Adam Cohenimport java.util.ArrayList; 342148d43eb23c702e834c93ae427f822f32d280a2Adam Cohenimport java.util.HashMap; 352148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen/** 373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Base class for a {@link AdapterView} that will perform animations 383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * when switching between its views. 393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @attr ref android.R.styleable#AdapterViewAnimator_inAnimation 413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @attr ref android.R.styleable#AdapterViewAnimator_outAnimation 423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @attr ref android.R.styleable#AdapterViewAnimator_animateFirstView 431b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen * @attr ref android.R.styleable#AdapterViewAnimator_loopViews 443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 4544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpublic abstract class AdapterViewAnimator extends AdapterView<Adapter> 46a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen implements RemoteViewsAdapter.RemoteAdapterConnectionCallback, Advanceable { 473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen private static final String TAG = "RemoteViewAnimator"; 483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index of the current child, which appears anywhere from the beginning 5144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * to the end of the current set of children, as specified by {@link #mActiveOffset} 5244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int mWhichChild = 0; 5444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * The index of the child to restore after the asynchronous connection from the 5716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung * RemoteViewsAdapter has been. 5816c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung */ 5916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung private int mRestoreWhichChild = -1; 6016c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 6116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung /** 6244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Whether or not the first view(s) should be animated in 6344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean mAnimateFirstTime = true; 653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 6744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Represents where the in the current window of 6844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * views the current <code>mDisplayedChild</code> sits 6944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 7044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mActiveOffset = 0; 7144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 7244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 7344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The number of views that the {@link AdapterViewAnimator} keeps as children at any 7444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * given time (not counting views that are pending removal, see {@link #mPreviousViews}). 7544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 7696d8d56302da81b24333b204e6d7f15064538036Adam Cohen int mMaxNumActiveViews = 1; 7744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 7844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 791b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen * Map of the children of the {@link AdapterViewAnimator}. 8044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 81d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen HashMap<Integer, ViewAndMetaData> mViewsMap = new HashMap<Integer, ViewAndMetaData>(); 8244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 8444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * List of views pending removal from the {@link AdapterViewAnimator} 8544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 861b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen ArrayList<Integer> mPreviousViews; 8744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 8944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index, relative to the adapter, of the beginning of the window of views 9044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 9144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowStart = 0; 9244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index, relative to the adapter, of the end of the window of views 9544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 9644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowEnd = -1; 9744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The same as {@link #mCurrentWindowStart}, except when the we have bounded 10044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * {@link #mCurrentWindowStart} to be non-negative 10144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 10244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowStartUnbounded = 0; 10344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 10544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Listens for data changes from the adapter 10644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen AdapterDataSetObserver mDataSetObserver; 1083db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 10944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 11044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The {@link Adapter} for this {@link AdapterViewAnimator} 11144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 11244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Adapter mAdapter; 11344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 11544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The {@link RemoteViewsAdapter} for this {@link AdapterViewAnimator} 11644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 11744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen RemoteViewsAdapter mRemoteViewsAdapter; 11844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 1202148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * The remote adapter containing the data to be displayed by this view to be set 1212148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 1222148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen boolean mDeferNotifyDataSetChanged = false; 1232148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 1242148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 12544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Specifies whether this is the first time the animator is showing views 12644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 12744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen boolean mFirstTime = true; 1283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 12944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 130b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Specifies if the animator should wrap from 0 to the end and vice versa 131b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * or have hard boundaries at the beginning and end 132b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 1331b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen boolean mLoopViews = true; 134b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 135b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 136839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * The width and height of some child, used as a size reference in-case our 137839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen * dimensions are unspecified by the parent. 138839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen */ 139839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int mReferenceChildWidth = -1; 140839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int mReferenceChildHeight = -1; 141839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 142839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen /** 143ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen * In and out animations. 14444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1452794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator mInAnimation; 1462794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator mOutAnimation; 147ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen 148a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen /** 149a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen * Current touch state. 150a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen */ 151a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen private int mTouchMode = TOUCH_MODE_NONE; 152a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 153a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen /** 154a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen * Private touch states. 155a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen */ 156a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen static final int TOUCH_MODE_NONE = 0; 157a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen static final int TOUCH_MODE_DOWN_IN_CURRENT_VIEW = 1; 158a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen static final int TOUCH_MODE_HANDLED = 2; 159a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 160a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen private Runnable mPendingCheckForTap; 161a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 162ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen private static final int DEFAULT_ANIMATION_DURATION = 200; 163ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen 1643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public AdapterViewAnimator(Context context) { 16526f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, null); 1663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1683db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public AdapterViewAnimator(Context context, AttributeSet attrs) { 16926f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen this(context, attrs, 0); 17026f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen } 17126f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen 17226f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen public AdapterViewAnimator(Context context, AttributeSet attrs, int defStyleAttr) { 17326f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen super(context, attrs, defStyleAttr); 1743db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 17544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen TypedArray a = context.obtainStyledAttributes(attrs, 17626f072c3ee4f2baecf4fd3f8ed829ed709055cf4Adam Cohen com.android.internal.R.styleable.AdapterViewAnimator, defStyleAttr, 0); 17744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int resource = a.getResourceId( 1781b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen com.android.internal.R.styleable.AdapterViewAnimator_inAnimation, 0); 1793db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (resource > 0) { 1803db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setInAnimation(context, resource); 181ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen } else { 182ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen setInAnimation(getDefaultInAnimation()); 1833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1851b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen resource = a.getResourceId(com.android.internal.R.styleable.AdapterViewAnimator_outAnimation, 0); 1863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (resource > 0) { 1873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setOutAnimation(context, resource); 188ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen } else { 189ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen setOutAnimation(getDefaultOutAnimation()); 1903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 19244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen boolean flag = a.getBoolean( 1931b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen com.android.internal.R.styleable.AdapterViewAnimator_animateFirstView, true); 1943db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setAnimateFirstView(flag); 1953db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1961b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mLoopViews = a.getBoolean( 1971b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen com.android.internal.R.styleable.AdapterViewAnimator_loopViews, false); 1981b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 1993db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen a.recycle(); 2003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2015b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy initViewAnimator(); 2023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Initialize this {@link AdapterViewAnimator} 2063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2075b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private void initViewAnimator() { 2081b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mPreviousViews = new ArrayList<Integer>(); 20944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 21044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 211d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen class ViewAndMetaData { 2121b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen View view; 213d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen int relativeIndex; 214d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen int adapterPosition; 215d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen long itemId; 216d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen 217d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen ViewAndMetaData(View view, int relativeIndex, int adapterPosition, long itemId) { 218d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen this.view = view; 219d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen this.relativeIndex = relativeIndex; 220d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen this.adapterPosition = adapterPosition; 221d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen this.itemId = itemId; 222d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } 2231b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } 2241b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 22544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 22644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * This method is used by subclasses to configure the animator to display the 22744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * desired number of views, and specify the offset 22844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 22944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param numVisibleViews The number of views the animator keeps in the {@link ViewGroup} 2305b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * @param activeOffset This parameter specifies where the current index ({@link #mWhichChild}) 23144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * sits within the window. For example if activeOffset is 1, and numVisibleViews is 3, 2325b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * and {@link #setDisplayedChild(int)} is called with 10, then the effective window will 2335b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * be the indexes 9, 10, and 11. In the same example, if activeOffset were 0, then the 23444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * window would instead contain indexes 10, 11 and 12. 235b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * @param shouldLoop If the animator is show view 0, and setPrevious() is called, do we 236b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * we loop back to the end, or do we do nothing 23744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 2381b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen void configureViewAnimator(int numVisibleViews, int activeOffset) { 23944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (activeOffset > numVisibleViews - 1) { 24044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Throw an exception here. 24144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 24296d8d56302da81b24333b204e6d7f15064538036Adam Cohen mMaxNumActiveViews = numVisibleViews; 24344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveOffset = activeOffset; 24444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.clear(); 2451b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mViewsMap.clear(); 24644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen removeAllViewsInLayout(); 24744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStart = 0; 24844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowEnd = -1; 24944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 25044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 25144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 25244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * This class should be overridden by subclasses to customize view transitions within 25344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * the set of visible views 25444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 25544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param fromIndex The relative index within the window that the view was in, -1 if it wasn't 25644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * in the window 25744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param toIndex The relative index within the window that the view is going to, -1 if it is 25844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * being removed 25944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param view The view that is being animated 26044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 26178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen void transformViewForTransition(int fromIndex, int toIndex, View view, boolean animate) { 26244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (fromIndex == -1) { 263ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen mInAnimation.setTarget(view); 264ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen mInAnimation.start(); 26544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else if (toIndex == -1) { 266ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen mOutAnimation.setTarget(view); 267ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen mOutAnimation.start(); 26844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 2693db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2712794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator getDefaultInAnimation() { 2722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator anim = ObjectAnimator.ofFloat(null, "alpha", 0.0f, 1.0f); 2732794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setDuration(DEFAULT_ANIMATION_DURATION); 2742794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 275ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen } 276ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen 2772794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator getDefaultOutAnimation() { 2782794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase ObjectAnimator anim = ObjectAnimator.ofFloat(null, "alpha", 1.0f, 0.0f); 2792794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase anim.setDuration(DEFAULT_ANIMATION_DURATION); 2802794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase return anim; 281ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen } 282ef52176f1244a5bb98d82a0c8c7f4351edec17a1Adam Cohen 2833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Sets which child view will be displayed. 2853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 2863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param whichChild the index of the child view to display 2873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2880b96a57c851af2f66e3bc738035478efb3c1957eAdam Cohen @android.view.RemotableViewMethod 2893db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setDisplayedChild(int whichChild) { 29053838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen setDisplayedChild(whichChild, true); 29153838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen } 29253838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen 29353838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen private void setDisplayedChild(int whichChild, boolean animate) { 2943db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mAdapter != null) { 2953db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mWhichChild = whichChild; 29696d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (whichChild >= getWindowSize()) { 29796d8d56302da81b24333b204e6d7f15064538036Adam Cohen mWhichChild = mLoopViews ? 0 : getWindowSize() - 1; 2983db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } else if (whichChild < 0) { 29996d8d56302da81b24333b204e6d7f15064538036Adam Cohen mWhichChild = mLoopViews ? getWindowSize() - 1 : 0; 3003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3013db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 3023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean hasFocus = getFocusedChild() != null; 3033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // This will clear old focus if we had it 30453838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen showOnly(mWhichChild, animate); 3053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (hasFocus) { 3063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // Try to retake focus if we had it 3073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen requestFocus(FOCUS_FORWARD); 3083db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3093db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3113db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 3123db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 31344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * To be overridden by subclasses. This method applies a view / index specific 31444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * transform to the child view. 31544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 31644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param child 31744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param relativeIndex 31844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 31944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void applyTransformForChildAtIndex(View child, int relativeIndex) { 32044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 32144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 32244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 3233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the index of the currently displayed child view. 3243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 3253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public int getDisplayedChild() { 3263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mWhichChild; 3273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 3293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 3303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Manually shows the next child. 3313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 3323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void showNext() { 3333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(mWhichChild + 1); 3343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 3363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 3373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Manually shows the previous child. 3383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 3393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void showPrevious() { 3403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(mWhichChild - 1); 3413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 34396d8d56302da81b24333b204e6d7f15064538036Adam Cohen int modulo(int pos, int size) { 3443042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen if (size > 0) { 3453042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen return (size + (pos % size)) % size; 3463042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen } else { 3473042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen return 0; 3483042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen } 3493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 35144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 35244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Get the view at this index relative to the current window's start 35344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 35444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param relativeIndex Position relative to the current window's start 35544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @return View at this index, null if the index is outside the bounds 35644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 35744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View getViewAtRelativeIndex(int relativeIndex) { 35896d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (relativeIndex >= 0 && relativeIndex <= getNumActiveViews() - 1 && mAdapter != null) { 35996d8d56302da81b24333b204e6d7f15064538036Adam Cohen int i = modulo(mCurrentWindowStartUnbounded + relativeIndex, getWindowSize()); 3606f279627cfa3286e6901a8dc2ed8361576ce226dAdam Cohen if (mViewsMap.get(i) != null) { 3616f279627cfa3286e6901a8dc2ed8361576ce226dAdam Cohen return mViewsMap.get(i).view; 3626f279627cfa3286e6901a8dc2ed8361576ce226dAdam Cohen } 36344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 36444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return null; 36544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 3663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 36796d8d56302da81b24333b204e6d7f15064538036Adam Cohen int getNumActiveViews() { 36896d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (mAdapter != null) { 369ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen return Math.min(getCount() + 1, mMaxNumActiveViews); 37096d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 37196d8d56302da81b24333b204e6d7f15064538036Adam Cohen return mMaxNumActiveViews; 37296d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 37396d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 37496d8d56302da81b24333b204e6d7f15064538036Adam Cohen 37596d8d56302da81b24333b204e6d7f15064538036Adam Cohen int getWindowSize() { 37696d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (mAdapter != null) { 377ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen int adapterCount = getCount(); 37896d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (adapterCount <= getNumActiveViews() && mLoopViews) { 37996d8d56302da81b24333b204e6d7f15064538036Adam Cohen return adapterCount*mMaxNumActiveViews; 38096d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 38196d8d56302da81b24333b204e6d7f15064538036Adam Cohen return adapterCount; 38296d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 38396d8d56302da81b24333b204e6d7f15064538036Adam Cohen } else { 38496d8d56302da81b24333b204e6d7f15064538036Adam Cohen return 0; 38596d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 38696d8d56302da81b24333b204e6d7f15064538036Adam Cohen } 38796d8d56302da81b24333b204e6d7f15064538036Adam Cohen 388d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen private ViewAndMetaData getMetaDataForChild(View child) { 389d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen for (ViewAndMetaData vm: mViewsMap.values()) { 390d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen if (vm.view == child) { 391d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen return vm; 392d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } 393d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } 394d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen return null; 395d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } 396d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen 3979b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen LayoutParams createOrReuseLayoutParams(View v) { 3985b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy final ViewGroup.LayoutParams currentLp = v.getLayoutParams(); 3999b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen if (currentLp instanceof ViewGroup.LayoutParams) { 400b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen LayoutParams lp = (LayoutParams) currentLp; 401b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return lp; 40244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 4039b073948cfb84c0dd04f8a94ee1f7f263f027c83Adam Cohen return new ViewGroup.LayoutParams(0, 0); 40444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 4053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4066364f2bbe5254b4274f3feffc48f4259eacc205eWinson Chung void refreshChildren() { 407a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen if (mAdapter == null) return; 408bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen for (int i = mCurrentWindowStart; i <= mCurrentWindowEnd; i++) { 409a9238c89a43500ed0bcdeaee182be08ff991c627Adam Cohen int index = modulo(i, getWindowSize()); 410bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen 411ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen int adapterCount = getCount(); 412bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen // get the fresh child from the adapter 413ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final View updatedChild = mAdapter.getView(modulo(i, adapterCount), null, this); 414bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen 4151b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (mViewsMap.containsKey(index)) { 416ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final FrameLayout fl = (FrameLayout) mViewsMap.get(index).view; 417bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen // add the new child to the frame, if it exists 418bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen if (updatedChild != null) { 419ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen // flush out the old child 420ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen fl.removeAllViewsInLayout(); 421bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen fl.addView(updatedChild); 422bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen } 423bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen } 424bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen } 425bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen } 426bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen 427dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen /** 428dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen * This method can be overridden so that subclasses can provide a custom frame in which their 429dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen * children can live. For example, StackView adds padding to its childrens' frames so as to 430dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen * accomodate for the highlight effect. 431dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen * 432dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen * @return The FrameLayout into which children can be placed. 433dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen */ 434dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout getFrameForChild() { 435dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen return new FrameLayout(mContext); 436dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen } 437dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen 438ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen /** 439ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * Shows only the specified child. The other displays Views exit the screen, 440ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * optionally with the with the {@link #getOutAnimation() out animation} and 441ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * the specified child enters the screen, optionally with the 442ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * {@link #getInAnimation() in animation}. 443ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * 444ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * @param childIndex The index of the child to be shown. 445ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * @param animate Whether or not to use the in and out animations, defaults 446ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen * to true. 447ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen */ 448ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen void showOnly(int childIndex, boolean animate) { 44944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mAdapter == null) return; 450ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen final int adapterCount = getCount(); 4513042944c6ec68210ba1746540b53789e70d15ef4Adam Cohen if (adapterCount == 0) return; 4523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 45344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = 0; i < mPreviousViews.size(); i++) { 4541b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen View viewToRemove = mViewsMap.get(mPreviousViews.get(i)).view; 4551b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mViewsMap.remove(mPreviousViews.get(i)); 45644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen viewToRemove.clearAnimation(); 4573d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen if (viewToRemove instanceof ViewGroup) { 4583d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen ViewGroup vg = (ViewGroup) viewToRemove; 4593d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen vg.removeAllViewsInLayout(); 4603d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen } 46144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // applyTransformForChildAtIndex here just allows for any cleanup 46244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // associated with this view that may need to be done by a subclass 46344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen applyTransformForChildAtIndex(viewToRemove, -1); 4643d07af03421f4727ef7e97c5c19e6ade50b19060Adam Cohen 46544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen removeViewInLayout(viewToRemove); 46644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 46744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.clear(); 46844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowStartUnbounded = childIndex - mActiveOffset; 46996d8d56302da81b24333b204e6d7f15064538036Adam Cohen int newWindowEndUnbounded = newWindowStartUnbounded + getNumActiveViews() - 1; 47044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowStart = Math.max(0, newWindowStartUnbounded); 4711b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen int newWindowEnd = Math.min(adapterCount - 1, newWindowEndUnbounded); 47244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 4731b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (mLoopViews) { 4741b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen newWindowStart = newWindowStartUnbounded; 4751b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen newWindowEnd = newWindowEndUnbounded; 4761b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } 47796d8d56302da81b24333b204e6d7f15064538036Adam Cohen int rangeStart = modulo(newWindowStart, getWindowSize()); 47896d8d56302da81b24333b204e6d7f15064538036Adam Cohen int rangeEnd = modulo(newWindowEnd, getWindowSize()); 4791b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 4801b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen boolean wrap = false; 4811b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (rangeStart > rangeEnd) { 4821b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen wrap = true; 4831b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } 4841b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 4851b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen // This section clears out any items that are in our active views list 48644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // but are outside the effective bounds of our window (this is becomes an issue 48744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // at the extremities of the list, eg. where newWindowStartUnbounded < 0 or 488ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen // newWindowEndUnbounded > adapterCount - 1 4891b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen for (Integer index : mViewsMap.keySet()) { 4901b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen boolean remove = false; 4911b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (!wrap && (index < rangeStart || index > rangeEnd)) { 4921b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen remove = true; 4931b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } else if (wrap && (index > rangeEnd && index < rangeStart)) { 4941b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen remove = true; 4951b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } 4961b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 4971b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (remove) { 4981b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen View previousView = mViewsMap.get(index).view; 499d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen int oldRelativeIndex = mViewsMap.get(index).relativeIndex; 5001b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 5011b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mPreviousViews.add(index); 50278db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformViewForTransition(oldRelativeIndex, -1, previousView, animate); 5033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 50444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 5053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 50644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // If the window has changed 50796d8d56302da81b24333b204e6d7f15064538036Adam Cohen if (!(newWindowStart == mCurrentWindowStart && newWindowEnd == mCurrentWindowEnd && 50896d8d56302da81b24333b204e6d7f15064538036Adam Cohen newWindowStartUnbounded == mCurrentWindowStartUnbounded)) { 50944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Run through the indices in the new range 51044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = newWindowStart; i <= newWindowEnd; i++) { 51144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 51296d8d56302da81b24333b204e6d7f15064538036Adam Cohen int index = modulo(i, getWindowSize()); 5131b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen int oldRelativeIndex; 5141b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (mViewsMap.containsKey(index)) { 515d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen oldRelativeIndex = mViewsMap.get(index).relativeIndex; 5161b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } else { 5171b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen oldRelativeIndex = -1; 5181b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen } 51944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newRelativeIndex = i - newWindowStartUnbounded; 52044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 52144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // If this item is in the current window, great, we just need to apply 52244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // the transform for it's new relative position in the window, and animate 52344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // between it's current and new relative positions 5241b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen boolean inOldRange = mViewsMap.containsKey(index) && !mPreviousViews.contains(index); 5251b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen 5261b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen if (inOldRange) { 5271b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen View view = mViewsMap.get(index).view; 528d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen mViewsMap.get(index).relativeIndex = newRelativeIndex; 52944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen applyTransformForChildAtIndex(view, newRelativeIndex); 53078db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformViewForTransition(oldRelativeIndex, newRelativeIndex, view, animate); 53144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5321b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen // Otherwise this view is new to the window 53344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else { 5341b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen // Get the new view from the adapter, add it and apply any transform / animation 535d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen final int adapterPosition = modulo(i, adapterCount); 536d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen View newView = mAdapter.getView(adapterPosition, null, this); 537d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen long itemId = mAdapter.getItemId(adapterPosition); 538bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen 539bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen // We wrap the new view in a FrameLayout so as to respect the contract 540bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen // with the adapter, that is, that we don't modify this view directly 541dfcdddd7c408dddb22fb0867e4799d4c29d2f55fAdam Cohen FrameLayout fl = getFrameForChild(); 542bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen 543bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen // If the view from the adapter is null, we still keep an empty frame in place 54444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (newView != null) { 545bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen fl.addView(newView); 54644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 547d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen mViewsMap.put(index, new ViewAndMetaData(fl, newRelativeIndex, 548d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen adapterPosition, itemId)); 549bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen addChild(fl); 550bd0136a2fde1d81a835f94efe3193569b10d99ffAdam Cohen applyTransformForChildAtIndex(fl, newRelativeIndex); 55178db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen transformViewForTransition(-1, newRelativeIndex, fl, animate); 5523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5531b065cd1401253f999caa5d0ac12909407cef00eAdam Cohen mViewsMap.get(index).view.bringToFront(); 5543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 55544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStart = newWindowStart; 55644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowEnd = newWindowEnd; 55744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStartUnbounded = newWindowStartUnbounded; 558b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen if (mRemoteViewsAdapter != null) { 559b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen mRemoteViewsAdapter.setVisibleRangeHint(mCurrentWindowStart, mCurrentWindowEnd); 560b967392e0170af8cfd8053fd43fcdf8c46f703e9Adam Cohen } 56144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 562ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen requestLayout(); 563ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen invalidate(); 5643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 566839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private void addChild(View child) { 567839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen addViewInLayout(child, -1, createOrReuseLayoutParams(child)); 568839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 569839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // This code is used to obtain a reference width and height of a child in case we need 570839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // to decide our own size. TODO: Do we want to update the size of the child that we're 571839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // using for reference size? If so, when? 572839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (mReferenceChildWidth == -1 || mReferenceChildHeight == -1) { 573839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int measureSpec = MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED); 574839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen child.measure(measureSpec, measureSpec); 575839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mReferenceChildWidth = child.getMeasuredWidth(); 576839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mReferenceChildHeight = child.getMeasuredHeight(); 577839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 578839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 579839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 580a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen void showTapFeedback(View v) { 581a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen v.setPressed(true); 582a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 583a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 584a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen void hideTapFeedback(View v) { 585a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen v.setPressed(false); 586a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 587a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 588a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen void cancelHandleClick() { 589a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen View v = getCurrentView(); 590a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (v != null) { 591a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen hideTapFeedback(v); 592a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 593a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen mTouchMode = TOUCH_MODE_NONE; 594a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 595a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 596a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen final class CheckForTap implements Runnable { 597a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen public void run() { 598a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (mTouchMode == TOUCH_MODE_DOWN_IN_CURRENT_VIEW) { 599a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen View v = getCurrentView(); 600a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen showTapFeedback(v); 601a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 602a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 603a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 604a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 605a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen @Override 606a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen public boolean onTouchEvent(MotionEvent ev) { 607a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen int action = ev.getAction(); 608a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen boolean handled = false; 609a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen switch (action) { 610a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen case MotionEvent.ACTION_DOWN: { 611a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen View v = getCurrentView(); 612a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (v != null) { 613a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (isTransformedTouchPointInView(ev.getX(), ev.getY(), v, null)) { 614a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (mPendingCheckForTap == null) { 615a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen mPendingCheckForTap = new CheckForTap(); 616a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 617a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen mTouchMode = TOUCH_MODE_DOWN_IN_CURRENT_VIEW; 618a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen postDelayed(mPendingCheckForTap, ViewConfiguration.getTapTimeout()); 619a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 620a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 621a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen break; 622a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 623a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen case MotionEvent.ACTION_MOVE: break; 624a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen case MotionEvent.ACTION_POINTER_UP: break; 625a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen case MotionEvent.ACTION_UP: { 626a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (mTouchMode == TOUCH_MODE_DOWN_IN_CURRENT_VIEW) { 627a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen final View v = getCurrentView(); 628d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen final ViewAndMetaData viewData = getMetaDataForChild(v); 629a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (v != null) { 630a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (isTransformedTouchPointInView(ev.getX(), ev.getY(), v, null)) { 631a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen final Handler handler = getHandler(); 632a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (handler != null) { 633a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen handler.removeCallbacks(mPendingCheckForTap); 634a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 635a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen showTapFeedback(v); 636a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen postDelayed(new Runnable() { 637a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen public void run() { 638a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen hideTapFeedback(v); 639a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen post(new Runnable() { 640a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen public void run() { 641d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen if (viewData != null) { 642d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen performItemClick(v, viewData.adapterPosition, 643d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen viewData.itemId); 644d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } else { 645d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen performItemClick(v, 0, 0); 646d38a0cee2074fcf8005fc0d746aad282941a39b8Adam Cohen } 647a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 648a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen }); 649a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 650a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen }, ViewConfiguration.getPressedStateDuration()); 651a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen handled = true; 652a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 653a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 654a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 655a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen mTouchMode = TOUCH_MODE_NONE; 656a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen break; 657a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 658a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen case MotionEvent.ACTION_CANCEL: { 659a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen View v = getCurrentView(); 660a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen if (v != null) { 661a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen hideTapFeedback(v); 662a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 663a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen mTouchMode = TOUCH_MODE_NONE; 664a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 665a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 666a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen return handled; 667a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen } 668a32edd4b4c894f4fb3d9fd7e9d5b80321df79e20Adam Cohen 669839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen private void measureChildren() { 670839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int count = getChildCount(); 671189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn final int childWidth = getMeasuredWidth() - mPaddingLeft - mPaddingRight; 672189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn final int childHeight = getMeasuredHeight() - mPaddingTop - mPaddingBottom; 673839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 674839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen for (int i = 0; i < count; i++) { 675839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final View child = getChildAt(i); 676839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen child.measure(MeasureSpec.makeMeasureSpec(childWidth, MeasureSpec.EXACTLY), 677839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen MeasureSpec.makeMeasureSpec(childHeight, MeasureSpec.EXACTLY)); 678839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 679839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 680839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 681839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen @Override 682839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 683839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec); 684839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec); 685839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int widthSpecMode = MeasureSpec.getMode(widthMeasureSpec); 686839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen final int heightSpecMode = MeasureSpec.getMode(heightMeasureSpec); 687839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 688839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen boolean haveChildRefSize = (mReferenceChildWidth != -1 && mReferenceChildHeight != -1); 689839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 690839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // We need to deal with the case where our parent hasn't told us how 691839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // big we should be. In this case we try to use the desired size of the first 692839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen // child added. 693839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (heightSpecMode == MeasureSpec.UNSPECIFIED) { 694839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen heightSpecSize = haveChildRefSize ? mReferenceChildHeight + mPaddingTop + 695839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingBottom : 0; 696839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 697189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 698189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int height = mReferenceChildHeight + mPaddingTop + mPaddingBottom; 699189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (height > heightSpecSize) { 700189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize |= MEASURED_STATE_TOO_SMALL; 701189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 702189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn heightSpecSize = height; 703189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 704189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 705839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 706839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 707839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen if (widthSpecMode == MeasureSpec.UNSPECIFIED) { 708839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen widthSpecSize = haveChildRefSize ? mReferenceChildWidth + mPaddingLeft + 709839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen mPaddingRight : 0; 710839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } else if (heightSpecMode == MeasureSpec.AT_MOST) { 711189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (haveChildRefSize) { 712189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn int width = mReferenceChildWidth + mPaddingLeft + mPaddingRight; 713189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn if (width > widthSpecSize) { 714189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize |= MEASURED_STATE_TOO_SMALL; 715189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } else { 716189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn widthSpecSize = width; 717189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 718189ee18d6c6483ad63cc864267328259e2e00b95Dianne Hackborn } 719839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 720839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 721839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen setMeasuredDimension(widthSpecSize, heightSpecSize); 722839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen measureChildren(); 723839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen } 724839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen 725ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen void checkForAndHandleDataChanged() { 7263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean dataChanged = mDataChanged; 7273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (dataChanged) { 728ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen post(new Runnable() { 729ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen public void run() { 730ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen handleDataChanged(); 731ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen // if the data changes, mWhichChild might be out of the bounds of the adapter 732ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen // in this case, we reset mWhichChild to the beginning 733ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen if (mWhichChild >= getWindowSize()) { 734ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen mWhichChild = 0; 7353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 73678db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen showOnly(mWhichChild, false); 737e86ff4d56145d875c13a1637833f9f55d79febc9Adam Cohen } else if (mOldItemCount != getCount()) { 73878db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen showOnly(mWhichChild, false); 739ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen } 740ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen refreshChildren(); 741ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen requestLayout(); 742ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen } 743ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen }); 7443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 745ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen mDataChanged = false; 746ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen } 747ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen 748ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen @Override 749ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 750ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen checkForAndHandleDataChanged(); 7513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final int childCount = getChildCount(); 7533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen for (int i = 0; i < childCount; i++) { 7543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final View child = getChildAt(i); 7553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childRight = mPaddingLeft + child.getMeasuredWidth(); 7573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childBottom = mPaddingTop + child.getMeasuredHeight(); 7583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 759839f4a54e5a6fe602dbc5998b01412d809eba722Adam Cohen child.layout(mPaddingLeft, mPaddingTop, childRight, childBottom); 7603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 763b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen static class SavedState extends BaseSavedState { 764b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen int whichChild; 765b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 766b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 767b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Constructor called from {@link AdapterViewAnimator#onSaveInstanceState()} 768b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 769b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen SavedState(Parcelable superState, int whichChild) { 770b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super(superState); 771b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen this.whichChild = whichChild; 772b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 773b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 774b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 775b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Constructor called from {@link #CREATOR} 776b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 777b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private SavedState(Parcel in) { 778b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super(in); 7793ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung this.whichChild = in.readInt(); 780b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 781b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 782b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 783b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public void writeToParcel(Parcel out, int flags) { 784b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super.writeToParcel(out, flags); 7853ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung out.writeInt(this.whichChild); 786b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 787b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 788b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 789b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public String toString() { 7903ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return "AdapterViewAnimator.SavedState{ whichChild = " + this.whichChild + " }"; 791b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 792b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 793b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public static final Parcelable.Creator<SavedState> CREATOR 794b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen = new Parcelable.Creator<SavedState>() { 795b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public SavedState createFromParcel(Parcel in) { 796b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState(in); 797b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 798b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 799b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public SavedState[] newArray(int size) { 800b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState[size]; 801b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 802b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen }; 803b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 804b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 805b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 806b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public Parcelable onSaveInstanceState() { 807b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen Parcelable superState = super.onSaveInstanceState(); 808b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState(superState, mWhichChild); 809b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 810b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 811b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 812b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public void onRestoreInstanceState(Parcelable state) { 813b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen SavedState ss = (SavedState) state; 814b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super.onRestoreInstanceState(ss.getSuperState()); 815b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 816b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // Here we set mWhichChild in addition to setDisplayedChild 817b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // We do the former in case mAdapter is null, and hence setDisplayedChild won't 818b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // set mWhichChild 819b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mWhichChild = ss.whichChild; 82069d66e00136f67332c992326a7b2eb334eeb32a2Adam Cohen 82116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // When using RemoteAdapters, the async connection process can lead to 82216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // onRestoreInstanceState to be called before setAdapter(), so we need to save the previous 82316c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // values to restore the list position after we connect, and can skip setting the displayed 82416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // child until then. 82516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mRemoteViewsAdapter != null && mAdapter == null) { 82616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRestoreWhichChild = mWhichChild; 82716c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } else { 82853838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen setDisplayedChild(mWhichChild, false); 82916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 830b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 831b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 8323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the View corresponding to the currently displayed child. 8343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return The View currently displayed. 8363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getDisplayedChild() 8383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 8393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public View getCurrentView() { 84044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return getViewAtRelativeIndex(mActiveOffset); 8413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 8423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 8433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the current animation used to animate a View that enters the screen. 8453db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return An Animation or null if none is set. 8473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8482794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @see #setInAnimation(android.animation.ObjectAnimator) 8493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.content.Context, int) 8503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 8512794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ObjectAnimator getInAnimation() { 8523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mInAnimation; 8533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 8543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 8553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that enters the screen. 8573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param inAnimation The animation started when a View enters the screen. 8593db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getInAnimation() 8613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.content.Context, int) 8623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 8632794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setInAnimation(ObjectAnimator inAnimation) { 8643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mInAnimation = inAnimation; 8653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 8663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 8673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8683db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the current animation used to animate a View that exits the screen. 8693db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return An Animation or null if none is set. 8713db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8722794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @see #setOutAnimation(android.animation.ObjectAnimator) 8733db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.content.Context, int) 8743db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 8752794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public ObjectAnimator getOutAnimation() { 8763db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mOutAnimation; 8773db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 8783db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 8793db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8803db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that exit the screen. 8813db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8823db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param outAnimation The animation started when a View exit the screen. 8833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getOutAnimation() 8853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.content.Context, int) 8863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 8872794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase public void setOutAnimation(ObjectAnimator outAnimation) { 8883db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mOutAnimation = outAnimation; 8893db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 8903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 8913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 8923db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that enters the screen. 8933db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8943db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param context The application's environment. 8953db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param resourceID The resource id of the animation. 8963db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 8973db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getInAnimation() 8982794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @see #setInAnimation(android.animation.ObjectAnimator) 8993db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 9003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setInAnimation(Context context, int resourceID) { 9012794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setInAnimation((ObjectAnimator) AnimatorInflater.loadAnimator(context, resourceID)); 9023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 9053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that exit the screen. 9063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 9073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param context The application's environment. 9083db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param resourceID The resource id of the animation. 9093db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 9103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getOutAnimation() 9112794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase * @see #setOutAnimation(android.animation.ObjectAnimator) 9123db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 9133db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setOutAnimation(Context context, int resourceID) { 9142794eb3b02e2404d453d3ad22a8a85a138130a07Chet Haase setOutAnimation((ObjectAnimator) AnimatorInflater.loadAnimator(context, resourceID)); 9153db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9163db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9173db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 9183db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Indicates whether the current View should be animated the first time 9193db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * the ViewAnimation is displayed. 9203db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 9213db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param animate True to animate the current View the first time it is displayed, 9223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * false otherwise. 9233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 9243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setAnimateFirstView(boolean animate) { 9253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAnimateFirstTime = animate; 9263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 9293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public int getBaseline() { 9303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return (getCurrentView() != null) ? getCurrentView().getBaseline() : super.getBaseline(); 9313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 9343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public Adapter getAdapter() { 9353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mAdapter; 9363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 9393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setAdapter(Adapter adapter) { 9408322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen if (mAdapter != null && mDataSetObserver != null) { 9418322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen mAdapter.unregisterDataSetObserver(mDataSetObserver); 9428322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen } 9438322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen 9443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAdapter = adapter; 9451480fddea874a42adb43b4bcdac6704e4c3e110bAdam Cohen checkFocus(); 9463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mAdapter != null) { 9483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mDataSetObserver = new AdapterDataSetObserver(); 9493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAdapter.registerDataSetObserver(mDataSetObserver); 950ef17dd497edc14ca753616862efaa3457e1df5daAdam Cohen mItemCount = mAdapter.getCount(); 9513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 95244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen setFocusable(true); 95378db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen mWhichChild = 0; 95478db1aa9118edd71c2da28a2c23a0d875d1a707aAdam Cohen showOnly(mWhichChild, false); 9553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 95844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Sets up this AdapterViewAnimator to use a remote views adapter which connects to a 95944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * RemoteViewsService through the specified intent. 96044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 96144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param intent the intent used to identify the RemoteViewsService for the adapter to 96244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * connect to. 9633db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 9643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @android.view.RemotableViewMethod 9653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setRemoteViewsAdapter(Intent intent) { 9669b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Ensure that we don't already have a RemoteViewsAdapter that is bound to an existing 9679b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // service handling the specified intent. 9683ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (mRemoteViewsAdapter != null) { 9693ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcNew = new Intent.FilterComparison(intent); 9703ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung Intent.FilterComparison fcOld = new Intent.FilterComparison( 9713ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung mRemoteViewsAdapter.getRemoteViewsServiceIntent()); 9723ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung if (fcNew.equals(fcOld)) { 9733ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung return; 9743ec9a45c36d3ca5ffbc6e85bbeb497b065e14155Winson Chung } 9759b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung } 9762148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 9779b3a2cf2a0a482ce8212eb2775176dd4c23e8e9aWinson Chung // Otherwise, create a new RemoteViewsAdapter for binding 9783db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mRemoteViewsAdapter = new RemoteViewsAdapter(getContext(), intent, this); 9793db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9803db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9813db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 9823db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setSelection(int position) { 9833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(position); 9843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 9873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public View getSelectedView() { 98844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return getViewAtRelativeIndex(mActiveOffset); 9893db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 9903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 9913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 9922148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * This defers a notifyDataSetChanged on the pending RemoteViewsAdapter if it has not 9932148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen * connected yet. 9942148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen */ 9952148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen public void deferNotifyDataSetChanged() { 9962148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = true; 9972148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 9982148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 9992148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen /** 10003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Called back when the adapter connects to the RemoteViewsService. 10013db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 100216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung public boolean onRemoteAdapterConnected() { 10033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mRemoteViewsAdapter != mAdapter) { 10043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setAdapter(mRemoteViewsAdapter); 100516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung 10062148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen if (mDeferNotifyDataSetChanged) { 10072148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mRemoteViewsAdapter.notifyDataSetChanged(); 10082148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen mDeferNotifyDataSetChanged = false; 10092148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen } 10102148d43eb23c702e834c93ae427f822f32d280a2Adam Cohen 101116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung // Restore the previous position (see onRestoreInstanceState) 101216c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung if (mRestoreWhichChild > -1) { 101353838d265e36fb50341af168f5a91c3341c3cfc3Adam Cohen setDisplayedChild(mRestoreWhichChild, false); 101416c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung mRestoreWhichChild = -1; 101516c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung } 101616c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 1017fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen } else if (mRemoteViewsAdapter != null) { 1018fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen mRemoteViewsAdapter.superNotifyDataSetChanged(); 101916c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return true; 10203db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 102116c8d8a558f94ec14ef52bb5ac11044e2d0d902cWinson Chung return false; 10223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 10233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 10243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 10253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Called back when the adapter disconnects from the RemoteViewsService. 10263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 10273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void onRemoteAdapterDisconnected() { 1028fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // If the remote adapter disconnects, we keep it around 1029fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // since the currently displayed items are still cached. 1030fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // Further, we want the service to eventually reconnect 1031fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // when necessary, as triggered by this view requesting 1032fb60386b46d0c6216c765c10bd33ac42ca780917Adam Cohen // items from the Adapter. 10333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1034a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen 10350e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 10360e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * Called by an {@link android.appwidget.AppWidgetHost} in order to advance the current view when 10370e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * it is being used within an app widget. 10380e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 1039a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen public void advance() { 1040a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen showNext(); 1041a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen } 1042a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen 10430e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen /** 10440e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * Called by an {@link android.appwidget.AppWidgetHost} to indicate that it will be 10450e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * automatically advancing the views of this {@link AdapterViewAnimator} by calling 10460e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * {@link AdapterViewAnimator#advance()} at some point in the future. This allows subclasses to 10470e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen * perform any required setup, for example, to stop automatically advancing their children. 10480e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen */ 10490e2de6d7187ef67ec00a2f2544450caa4a239c39Adam Cohen public void fyiWillBeAdvancedByHostKThx() { 1050a02fdf1ba03fad71cc80a89dfc74b17456d5b4a5Adam Cohen } 10513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen} 1052