AdapterViewAnimator.java revision b04f7ad90b7d5d5e0998e3b56960004cf56e6e8f
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 1944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport java.util.ArrayList; 2044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 2144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.animation.PropertyAnimator; 223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.Context; 233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.Intent; 243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.content.res.TypedArray; 2544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.graphics.Rect; 263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.os.Handler; 273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.os.Looper; 28b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.os.Parcel; 29b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohenimport android.os.Parcelable; 303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.util.AttributeSet; 313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.view.View; 3244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenimport android.view.ViewGroup; 333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.view.animation.Animation; 343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohenimport android.view.animation.AnimationUtils; 353db40678d33c2b5f90c380966d36b3e10ed11f05Adam 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 433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 4444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohenpublic abstract class AdapterViewAnimator extends AdapterView<Adapter> 4544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen implements RemoteViewsAdapter.RemoteAdapterConnectionCallback{ 463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen private static final String TAG = "RemoteViewAnimator"; 473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 4944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index of the current child, which appears anywhere from the beginning 5044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * to the end of the current set of children, as specified by {@link #mActiveOffset} 5144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int mWhichChild = 0; 5344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 5444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 5544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Whether or not the first view(s) should be animated in 5644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean mAnimateFirstTime = true; 583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 6044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Represents where the in the current window of 6144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * views the current <code>mDisplayedChild</code> sits 6244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 6344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mActiveOffset = 0; 6444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 6544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 6644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The number of views that the {@link AdapterViewAnimator} keeps as children at any 6744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * given time (not counting views that are pending removal, see {@link #mPreviousViews}). 6844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 6944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mNumActiveViews = 1; 7044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 7144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 7244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Array of the children of the {@link AdapterViewAnimator}. This array 7344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * is accessed in a circular fashion 7444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 7544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View[] mActiveViews; 7644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 7744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 7844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * List of views pending removal from the {@link AdapterViewAnimator} 7944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 8044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen ArrayList<View> mPreviousViews; 8144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 8344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index, relative to the adapter, of the beginning of the window of views 8444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 8544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowStart = 0; 8644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 8744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 8844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The index, relative to the adapter, of the end of the window of views 8944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 9044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowEnd = -1; 9144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The same as {@link #mCurrentWindowStart}, except when the we have bounded 9444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * {@link #mCurrentWindowStart} to be non-negative 9544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 9644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int mCurrentWindowStartUnbounded = 0; 9744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 9844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 9944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Handler to post events to the main thread 10044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 10144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Handler mMainQueue; 10244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 10344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 10444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Listens for data changes from the adapter 10544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen AdapterDataSetObserver mDataSetObserver; 1073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 10844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 10944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The {@link Adapter} for this {@link AdapterViewAnimator} 11044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 11144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Adapter mAdapter; 11244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 11444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * The {@link RemoteViewsAdapter} for this {@link AdapterViewAnimator} 11544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 11644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen RemoteViewsAdapter mRemoteViewsAdapter; 11744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 11844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 11944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Specifies whether this is the first time the animator is showing views 12044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 12144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen boolean mFirstTime = true; 1223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 12344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 124b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Specifies if the animator should wrap from 0 to the end and vice versa 125b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * or have hard boundaries at the beginning and end 126b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 127b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen boolean mShouldLoop = true; 128b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 129b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 13044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * TODO: Animation stuff is still in flux, waiting on the new framework to settle a bit. 13144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 1323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen Animation mInAnimation; 1333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen Animation mOutAnimation; 13444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private ArrayList<View> mViewsToBringToFront; 1353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public AdapterViewAnimator(Context context) { 1373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen super(context); 1385b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy initViewAnimator(); 1393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public AdapterViewAnimator(Context context, AttributeSet attrs) { 1423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen super(context, attrs); 1433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 14444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen TypedArray a = context.obtainStyledAttributes(attrs, 14544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen com.android.internal.R.styleable.ViewAnimator); 14644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int resource = a.getResourceId( 14744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen com.android.internal.R.styleable.ViewAnimator_inAnimation, 0); 1483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (resource > 0) { 1493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setInAnimation(context, resource); 1503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen resource = a.getResourceId(com.android.internal.R.styleable.ViewAnimator_outAnimation, 0); 1533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (resource > 0) { 1543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setOutAnimation(context, resource); 1553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 15744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen boolean flag = a.getBoolean( 15844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen com.android.internal.R.styleable.ViewAnimator_animateFirstView, true); 1593db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setAnimateFirstView(flag); 1603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen a.recycle(); 1623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1635b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy initViewAnimator(); 1643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 1653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 1663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 1673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Initialize this {@link AdapterViewAnimator} 1683db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 1695b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy private void initViewAnimator() { 1703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mMainQueue = new Handler(Looper.myLooper()); 17144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveViews = new View[mNumActiveViews]; 17244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews = new ArrayList<View>(); 17344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mViewsToBringToFront = new ArrayList<View>(); 17444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 17544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 17644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 17744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * This method is used by subclasses to configure the animator to display the 17844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * desired number of views, and specify the offset 17944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 18044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param numVisibleViews The number of views the animator keeps in the {@link ViewGroup} 1815b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * @param activeOffset This parameter specifies where the current index ({@link #mWhichChild}) 18244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * sits within the window. For example if activeOffset is 1, and numVisibleViews is 3, 1835b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * and {@link #setDisplayedChild(int)} is called with 10, then the effective window will 1845b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy * be the indexes 9, 10, and 11. In the same example, if activeOffset were 0, then the 18544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * window would instead contain indexes 10, 11 and 12. 186b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * @param shouldLoop If the animator is show view 0, and setPrevious() is called, do we 187b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * we loop back to the end, or do we do nothing 18844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 189b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen void configureViewAnimator(int numVisibleViews, int activeOffset, boolean shouldLoop) { 19044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (activeOffset > numVisibleViews - 1) { 19144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Throw an exception here. 19244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 19344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mNumActiveViews = numVisibleViews; 19444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveOffset = activeOffset; 19544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveViews = new View[mNumActiveViews]; 19644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.clear(); 19744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen removeAllViewsInLayout(); 19844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStart = 0; 19944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowEnd = -1; 200b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mShouldLoop = shouldLoop; 20144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 20244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 20344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 20444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * This class should be overridden by subclasses to customize view transitions within 20544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * the set of visible views 20644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 20744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param fromIndex The relative index within the window that the view was in, -1 if it wasn't 20844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * in the window 20944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param toIndex The relative index within the window that the view is going to, -1 if it is 21044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * being removed 21144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param view The view that is being animated 21244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 21344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void animateViewForTransition(int fromIndex, int toIndex, View view) { 21444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen PropertyAnimator pa; 21544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (fromIndex == -1) { 216b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setAlpha(0.0f); 21744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen pa = new PropertyAnimator(400, view, "alpha", 0.0f, 1.0f); 21844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen pa.start(); 21944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else if (toIndex == -1) { 22044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen pa = new PropertyAnimator(400, view, "alpha", 1.0f, 0.0f); 22144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen pa.start(); 22244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 2233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Sets which child view will be displayed. 2273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 2283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param whichChild the index of the child view to display 2293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setDisplayedChild(int whichChild) { 2313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mAdapter != null) { 2323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mWhichChild = whichChild; 2333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (whichChild >= mAdapter.getCount()) { 234b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mWhichChild = mShouldLoop ? 0 : mAdapter.getCount() - 1; 2353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } else if (whichChild < 0) { 236b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mWhichChild = mShouldLoop ? mAdapter.getCount() - 1 : 0; 2373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean hasFocus = getFocusedChild() != null; 2403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // This will clear old focus if we had it 2413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen showOnly(mWhichChild); 2423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (hasFocus) { 2433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // Try to retake focus if we had it 2443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen requestFocus(FOCUS_FORWARD); 2453db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Return default inAnimation. To be overriden by subclasses. 2513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 25244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Animation getDefaultInAnimation() { 2533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return null; 2543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 25744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Return default outAnimation. To be overridden by subclasses. 2583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 25944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen Animation getDefaultOutAnimation() { 2603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return null; 2613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2633db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 26444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * To be overridden by subclasses. This method applies a view / index specific 26544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * transform to the child view. 26644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 26744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param child 26844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param relativeIndex 26944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 27044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void applyTransformForChildAtIndex(View child, int relativeIndex) { 27144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 27244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 27344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 2743db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the index of the currently displayed child view. 2753db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2763db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public int getDisplayedChild() { 2773db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mWhichChild; 2783db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2793db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2803db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2813db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Manually shows the next child. 2823db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void showNext() { 2843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(mWhichChild + 1); 2853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2883db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Manually shows the previous child. 2893db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 2903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void showPrevious() { 2913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(mWhichChild - 1); 2923db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 2933db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 2943db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 2953db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Shows only the specified child. The other displays Views exit the screen, 2963db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * optionally with the with the {@link #getOutAnimation() out animation} and 2973db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * the specified child enters the screen, optionally with the 2983db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * {@link #getInAnimation() in animation}. 2993db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 3003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param childIndex The index of the child to be shown. 3013db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param animate Whether or not to use the in and out animations, defaults 3023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * to true. 3033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 3043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen void showOnly(int childIndex, boolean animate) { 3053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen showOnly(childIndex, animate, false); 3063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 30844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private int modulo(int pos, int size) { 30944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return (size + (pos % size)) % size; 3103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 3113db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 31244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen /** 31344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Get the view at this index relative to the current window's start 31444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 31544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param relativeIndex Position relative to the current window's start 31644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @return View at this index, null if the index is outside the bounds 31744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen */ 31844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View getViewAtRelativeIndex(int relativeIndex) { 31944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (relativeIndex >= 0 && relativeIndex <= mNumActiveViews - 1) { 32044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int index = mCurrentWindowStartUnbounded + relativeIndex; 32144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return mActiveViews[modulo(index, mNumActiveViews)]; 32244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 32344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return null; 32444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 3253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 32644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private LayoutParams createOrReuseLayoutParams(View v) { 3275b53f9186e7812c93bc578d18e92cb123481fcbcRomain Guy final ViewGroup.LayoutParams currentLp = v.getLayoutParams(); 32844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (currentLp instanceof LayoutParams) { 329b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen LayoutParams lp = (LayoutParams) currentLp; 330b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen lp.setHorizontalOffset(0); 331b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen lp.setVerticalOffset(0); 332b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return lp; 33344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 33444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return new LayoutParams(v); 33544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 3363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 33744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void showOnly(int childIndex, boolean animate, boolean onLayout) { 33844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mAdapter == null) return; 3393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 34044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = 0; i < mPreviousViews.size(); i++) { 34144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View viewToRemove = mPreviousViews.get(i); 34244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen viewToRemove.clearAnimation(); 34344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // applyTransformForChildAtIndex here just allows for any cleanup 34444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // associated with this view that may need to be done by a subclass 34544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen applyTransformForChildAtIndex(viewToRemove, -1); 34644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen removeViewInLayout(viewToRemove); 34744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 34844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.clear(); 34944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowStartUnbounded = childIndex - mActiveOffset; 35044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowEndUnbounded = newWindowStartUnbounded + mNumActiveViews - 1; 35144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowStart = Math.max(0, newWindowStartUnbounded); 35244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newWindowEnd = Math.min(mAdapter.getCount(), newWindowEndUnbounded); 35344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 35444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // This section clears out any items that are in our mActiveViews list 35544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // but are outside the effective bounds of our window (this is becomes an issue 35644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // at the extremities of the list, eg. where newWindowStartUnbounded < 0 or 35744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // newWindowEndUnbounded > mAdapter.getCount() - 1 35844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = newWindowStartUnbounded; i < newWindowEndUnbounded; i++) { 35944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (i < newWindowStart || i > newWindowEnd) { 36044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int index = modulo(i, mNumActiveViews); 36144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mActiveViews[index] != null) { 36244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View previousView = mActiveViews[index]; 36344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.add(previousView); 36444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int previousViewRelativeIndex = modulo(index - mCurrentWindowStart, 36544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mNumActiveViews); 36644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen animateViewForTransition(previousViewRelativeIndex, -1, previousView); 367b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mActiveViews[index] = null; 36844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 3693db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 37044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 3713db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 37244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // If the window has changed 37344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (! (newWindowStart == mCurrentWindowStart && newWindowEnd == mCurrentWindowEnd)) { 37444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Run through the indices in the new range 37544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = newWindowStart; i <= newWindowEnd; i++) { 37644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 37744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int oldRelativeIndex = i - mCurrentWindowStartUnbounded; 37844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int newRelativeIndex = i - newWindowStartUnbounded; 37944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int index = modulo(i, mNumActiveViews); 38044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 38144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // If this item is in the current window, great, we just need to apply 38244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // the transform for it's new relative position in the window, and animate 38344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // between it's current and new relative positions 38444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (i >= mCurrentWindowStart && i <= mCurrentWindowEnd) { 38544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View view = mActiveViews[index]; 38644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen applyTransformForChildAtIndex(view, newRelativeIndex); 38744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen animateViewForTransition(oldRelativeIndex, newRelativeIndex, view); 38844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 38944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // Otherwise this view is new, so first we have to displace the view that's 39044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // taking the new view's place within our cache (a circular array) 39144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else { 39244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mActiveViews[index] != null) { 39344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View previousView = mActiveViews[index]; 39444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mPreviousViews.add(previousView); 39544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int previousViewRelativeIndex = modulo(index - mCurrentWindowStart, 39644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mNumActiveViews); 39744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen animateViewForTransition(previousViewRelativeIndex, -1, previousView); 39844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 39944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mCurrentWindowStart > newWindowStart) { 40044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mViewsToBringToFront.add(previousView); 40144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 40244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 4033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 40444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // We've cleared a spot for the new view. Get it from the adapter, add it 40544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // and apply any transform / animation 40644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View newView = mAdapter.getView(i, null, this); 40744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (newView != null) { 40844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveViews[index] = newView; 40944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen addViewInLayout(newView, -1, createOrReuseLayoutParams(newView)); 41044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen applyTransformForChildAtIndex(newView, newRelativeIndex); 41144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen animateViewForTransition(-1, newRelativeIndex, newView); 41244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 4133db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 41444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mActiveViews[index].bringToFront(); 4153db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4163db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 41744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen for (int i = 0; i < mViewsToBringToFront.size(); i++) { 41844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View v = mViewsToBringToFront.get(i); 41944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen v.bringToFront(); 4203db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 42144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mViewsToBringToFront.clear(); 4223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 42344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStart = newWindowStart; 42444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowEnd = newWindowEnd; 42544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mCurrentWindowStartUnbounded = newWindowStartUnbounded; 42644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 42744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 42844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mFirstTime = false; 42944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (!onLayout) { 43044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen requestLayout(); 43144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen invalidate(); 43244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } else { 43344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // If the Adapter tries to layout the current view when we get it using getView 43444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // above the layout will end up being ignored since we are currently laying out, so 43544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // we post a delayed requestLayout and invalidate 43644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mMainQueue.post(new Runnable() { 43744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen @Override 43844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public void run() { 43944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen requestLayout(); 44044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen invalidate(); 44144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 44244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen }); 4433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4453db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 4473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen protected void onLayout(boolean changed, int left, int top, int right, int bottom) { 4483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen boolean dataChanged = mDataChanged; 4493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (dataChanged) { 4503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen handleDataChanged(); 4513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // if the data changes, mWhichChild might be out of the bounds of the adapter 4533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen // in this case, we reset mWhichChild to the beginning 4543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mWhichChild >= mAdapter.getCount()) 4553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mWhichChild = 0; 4563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen showOnly(mWhichChild, true, true); 4583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4593db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final int childCount = getChildCount(); 4613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen for (int i = 0; i < childCount; i++) { 4623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final View child = getChildAt(i); 4633db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 4643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childRight = mPaddingLeft + child.getMeasuredWidth(); 4653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childBottom = mPaddingTop + child.getMeasuredHeight(); 46644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen LayoutParams lp = (LayoutParams) child.getLayoutParams(); 4673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 46844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen child.layout(mPaddingLeft + lp.horizontalOffset, mPaddingTop + lp.verticalOffset, 46944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen childRight + lp.horizontalOffset, childBottom + lp.verticalOffset); 4703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4713db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mDataChanged = false; 4723db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 4733db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 474b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen static class SavedState extends BaseSavedState { 475b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen int whichChild; 476b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 477b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 478b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Constructor called from {@link AdapterViewAnimator#onSaveInstanceState()} 479b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 480b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen SavedState(Parcelable superState, int whichChild) { 481b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super(superState); 482b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen this.whichChild = whichChild; 483b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 484b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 485b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen /** 486b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen * Constructor called from {@link #CREATOR} 487b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen */ 488b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private SavedState(Parcel in) { 489b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super(in); 490b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen whichChild = in.readInt(); 491b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 492b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 493b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 494b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public void writeToParcel(Parcel out, int flags) { 495b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super.writeToParcel(out, flags); 496b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen out.writeInt(whichChild); 497b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 498b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 499b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 500b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public String toString() { 501b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return "AdapterViewAnimator.SavedState{ whichChild = " + whichChild + " }"; 502b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 503b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 504b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public static final Parcelable.Creator<SavedState> CREATOR 505b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen = new Parcelable.Creator<SavedState>() { 506b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public SavedState createFromParcel(Parcel in) { 507b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState(in); 508b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 509b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 510b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public SavedState[] newArray(int size) { 511b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState[size]; 512b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 513b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen }; 514b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 515b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 516b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 517b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public Parcelable onSaveInstanceState() { 518b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen Parcelable superState = super.onSaveInstanceState(); 519b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return new SavedState(superState, mWhichChild); 520b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 521b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 522b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 523b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public void onRestoreInstanceState(Parcelable state) { 524b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen SavedState ss = (SavedState) state; 525b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super.onRestoreInstanceState(ss.getSuperState()); 526b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 527b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // Here we set mWhichChild in addition to setDisplayedChild 528b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // We do the former in case mAdapter is null, and hence setDisplayedChild won't 529b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // set mWhichChild 530b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen mWhichChild = ss.whichChild; 531b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen setDisplayedChild(mWhichChild); 532b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 533b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 5343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 5353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) { 5363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final int count = getChildCount(); 5373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int widthSpecSize = MeasureSpec.getSize(widthMeasureSpec); 5393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int heightSpecSize = MeasureSpec.getSize(heightMeasureSpec); 5403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen for (int i = 0; i < count; i++) { 5423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final View child = getChildAt(i); 5433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final LayoutParams lp = (LayoutParams) child.getLayoutParams(); 5453db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen lp.width = widthSpecSize - mPaddingLeft - mPaddingRight; 5473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen lp.height = heightSpecSize - mPaddingTop - mPaddingBottom; 5483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childWidthMeasureSpec = MeasureSpec.makeMeasureSpec(lp.width, 5503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen MeasureSpec.EXACTLY); 5513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen int childheightMeasureSpec = MeasureSpec.makeMeasureSpec(lp.height, 5523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen MeasureSpec.EXACTLY); 5533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen child.measure(childWidthMeasureSpec, childheightMeasureSpec); 5553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setMeasuredDimension(widthSpecSize, heightSpecSize); 5573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5593db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 5603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Shows only the specified child. The other displays Views exit the screen 5613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * with the {@link #getOutAnimation() out animation} and the specified child 5623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * enters the screen with the {@link #getInAnimation() in animation}. 5633db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param childIndex The index of the child to be shown. 5653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 5663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen void showOnly(int childIndex) { 5673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen final boolean animate = (!mFirstTime || mAnimateFirstTime); 5683db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen showOnly(childIndex, animate); 5693db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5713db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 5723db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the View corresponding to the currently displayed child. 5733db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5743db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return The View currently displayed. 5753db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5763db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getDisplayedChild() 5773db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 5783db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public View getCurrentView() { 57944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return getViewAtRelativeIndex(mActiveOffset); 5803db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5813db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5823db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 5833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the current animation used to animate a View that enters the screen. 5843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return An Animation or null if none is set. 5863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.view.animation.Animation) 5883db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.content.Context, int) 5893db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 5903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public Animation getInAnimation() { 5913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mInAnimation; 5923db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 5933db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 5943db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 5953db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that enters the screen. 5963db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5973db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param inAnimation The animation started when a View enters the screen. 5983db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 5993db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getInAnimation() 6003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.content.Context, int) 6013db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setInAnimation(Animation inAnimation) { 6033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mInAnimation = inAnimation; 6043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 6073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Returns the current animation used to animate a View that exits the screen. 6083db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6093db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @return An Animation or null if none is set. 6103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6113db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.view.animation.Animation) 6123db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.content.Context, int) 6133db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6143db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public Animation getOutAnimation() { 6153db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mOutAnimation; 6163db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6173db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6183db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 6193db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that exit the screen. 6203db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6213db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param outAnimation The animation started when a View exit the screen. 6223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getOutAnimation() 6243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.content.Context, int) 6253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setOutAnimation(Animation outAnimation) { 6273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mOutAnimation = outAnimation; 6283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 6313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that enters the screen. 6323db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6333db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param context The application's environment. 6343db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param resourceID The resource id of the animation. 6353db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6363db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getInAnimation() 6373db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setInAnimation(android.view.animation.Animation) 6383db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6393db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setInAnimation(Context context, int resourceID) { 6403db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setInAnimation(AnimationUtils.loadAnimation(context, resourceID)); 6413db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6423db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6433db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 6443db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Specifies the animation used to animate a View that exit the screen. 6453db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6463db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param context The application's environment. 6473db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param resourceID The resource id of the animation. 6483db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6493db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #getOutAnimation() 6503db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @see #setOutAnimation(android.view.animation.Animation) 6513db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6523db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setOutAnimation(Context context, int resourceID) { 6533db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setOutAnimation(AnimationUtils.loadAnimation(context, resourceID)); 6543db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6553db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6563db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 6573db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Indicates whether the current View should be animated the first time 6583db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * the ViewAnimation is displayed. 6593db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * 6603db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * @param animate True to animate the current View the first time it is displayed, 6613db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * false otherwise. 6623db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6633db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setAnimateFirstView(boolean animate) { 6643db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAnimateFirstTime = animate; 6653db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6663db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6673db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 6683db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public int getBaseline() { 6693db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return (getCurrentView() != null) ? getCurrentView().getBaseline() : super.getBaseline(); 6703db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6713db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6723db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 6733db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public Adapter getAdapter() { 6743db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen return mAdapter; 6753db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6763db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6773db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 6783db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setAdapter(Adapter adapter) { 6798322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen if (mAdapter != null && mDataSetObserver != null) { 6808322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen mAdapter.unregisterDataSetObserver(mDataSetObserver); 6818322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen } 6828322834a2544a673a35c5d4ad0d5909b3ca37600Adam Cohen 6833db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAdapter = adapter; 6843db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6853db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mAdapter != null) { 6863db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mDataSetObserver = new AdapterDataSetObserver(); 6873db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mAdapter.registerDataSetObserver(mDataSetObserver); 6883db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 68944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen setFocusable(true); 6903db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 6913db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 6923db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 69344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * Sets up this AdapterViewAnimator to use a remote views adapter which connects to a 69444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * RemoteViewsService through the specified intent. 69544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * 69644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * @param intent the intent used to identify the RemoteViewsService for the adapter to 69744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen * connect to. 6983db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 6993db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @android.view.RemotableViewMethod 7003db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setRemoteViewsAdapter(Intent intent) { 7013db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mRemoteViewsAdapter = new RemoteViewsAdapter(getContext(), intent, this); 7023db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7033db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7043db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 7053db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void setSelection(int position) { 7063db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setDisplayedChild(position); 7073db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7083db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7093db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen @Override 7103db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public View getSelectedView() { 71144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen return getViewAtRelativeIndex(mActiveOffset); 7123db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7133db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7143db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 7153db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Called back when the adapter connects to the RemoteViewsService. 7163db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 7173db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void onRemoteAdapterConnected() { 7183db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mRemoteViewsAdapter != mAdapter) { 7193db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setAdapter(mRemoteViewsAdapter); 7203db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7213db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7223db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen 7233db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen /** 7243db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen * Called back when the adapter disconnects from the RemoteViewsService. 7253db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen */ 7263db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen public void onRemoteAdapterDisconnected() { 7273db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen if (mRemoteViewsAdapter != mAdapter) { 7283db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen mRemoteViewsAdapter = null; 7293db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen setAdapter(mRemoteViewsAdapter); 7303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 7313db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen } 73244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 733b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen private final Rect dirtyRect = new Rect(); 734b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen @Override 735b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public void removeViewInLayout(View view) { 736b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // TODO: need to investigate this block a bit more 737b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen // and perhaps fix some other invalidations issues. 738b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen View parent = null; 739b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen view.setVisibility(INVISIBLE); 740b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (view.getLayoutParams() instanceof LayoutParams) { 741b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen LayoutParams lp = (LayoutParams) view.getLayoutParams(); 742b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen parent = lp.getParentAndDirtyRegion(dirtyRect); 743b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 744b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 745b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen super.removeViewInLayout(view); 746b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 747b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (parent != null) 748b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen parent.invalidate(dirtyRect.left, dirtyRect.top, dirtyRect.right, dirtyRect.bottom); 749b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 750b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 75144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen static class LayoutParams extends ViewGroup.LayoutParams { 75244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int horizontalOffset; 75344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int verticalOffset; 75444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View mView; 75544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 75644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen LayoutParams(View view) { 75744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen super(0, 0); 75844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen horizontalOffset = 0; 75944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen verticalOffset = 0; 76044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mView = view; 76144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 76244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 76344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen LayoutParams(Context c, AttributeSet attrs) { 76444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen super(c, attrs); 76544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen horizontalOffset = 0; 76644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen verticalOffset = 0; 76744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 76844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 76944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private Rect parentRect = new Rect(); 77044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen void invalidateGlobalRegion(View v, Rect r) { 77144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen View p = v; 77244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen boolean firstPass = true; 77344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen parentRect.set(0, 0, 0, 0); 77444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen while (p.getParent() != null && p.getParent() instanceof View 77544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen && !parentRect.contains(r)) { 77644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (!firstPass) r.offset(p.getLeft() - p.getScrollX(), p.getTop() - p.getScrollY()); 77744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen firstPass = false; 77844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen p = (View) p.getParent(); 77944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen parentRect.set(p.getLeft() - p.getScrollX(), p.getTop() - p.getScrollY(), 78044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen p.getRight() - p.getScrollX(), p.getBottom() - p.getScrollY()); 78144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 78244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen p.invalidate(r.left, r.top, r.right, r.bottom); 78344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 78444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen 785b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen public View getParentAndDirtyRegion(Rect globalRect) { 786b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen globalRect.set(mView.getLeft(), mView.getTop(), mView.getRight(), mView.getBottom()); 787b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen View p = mView; 788b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen boolean firstPass = true; 789b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen parentRect.set(0, 0, 0, 0); 790b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen while (p.getParent() != null && p.getParent() instanceof View 791b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen && !parentRect.contains(globalRect)) { 792b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen if (!firstPass) { 793b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen globalRect.offset(p.getLeft() - p.getScrollX(), p.getTop() - p.getScrollY()); 794b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 795b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 796b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen firstPass = false; 797b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen p = (View) p.getParent(); 798b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen parentRect.set(p.getLeft() - p.getScrollX(), p.getTop() - p.getScrollY(), 799b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen p.getRight() - p.getScrollX(), p.getBottom() - p.getScrollY()); 800b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 801b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen return p; 802b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen } 803b04f7ad90b7d5d5e0998e3b56960004cf56e6e8fAdam Cohen 80444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen private Rect invalidateRect = new Rect(); 80544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen // This is public so that PropertyAnimator can access it 80644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen public void setVerticalOffset(int newVerticalOffset) { 80744729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int offsetDelta = newVerticalOffset - verticalOffset; 80844729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen verticalOffset = newVerticalOffset; 80944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen if (mView != null) { 81044729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen mView.requestLayout(); 81144729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int top = Math.min(mView.getTop() + offsetDelta, mView.getTop()); 81244729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen int bottom = Math.max(mView.getBottom() + offsetDelta, mView.getBottom()); 81344729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen invalidateRect.set(mView.getLeft(), top, mView.getRight(), bottom); 81444729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen invalidateGlobalRegion(mView, invalidateRect); 81544729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81644729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 81732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen 81832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen public void setHorizontalOffset(int newHorizontalOffset) { 81932a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen int offsetDelta = newHorizontalOffset - horizontalOffset; 82032a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen horizontalOffset = newHorizontalOffset; 82132a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen if (mView != null) { 82232a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen mView.requestLayout(); 82332a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen int left = Math.min(mView.getLeft() + offsetDelta, mView.getLeft()); 82432a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen int right = Math.max(mView.getRight() + offsetDelta, mView.getRight()); 82532a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen invalidateRect.set(left, mView.getTop(), right, mView.getBottom()); 82632a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen invalidateGlobalRegion(mView, invalidateRect); 82732a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 82832a42f1587db77b958d62c3de4f2734eb0a3b965Adam Cohen } 82944729e3d1c01265858eec566c7b7c676c46a7916Adam Cohen } 8303db40678d33c2b5f90c380966d36b3e10ed11f05Adam Cohen} 831