Android 兩張照片相互淡出

在res/drawable下面新建一個stylr.xml

1. <?xml version="1.0" encoding="UTF-8"?>  
2. <transition xmlns:Android="http://schemas.android.com/apk/res/android">    
3.     <item android:drawable="@drawable/badtz1"/>  
4.     <item android:drawable="@drawable/badtz2"/>  
5. </transition>  

1. public class Draw01Activity extends Activity {  
2.     /** Called when the activity is first created. */  
3.   
4.     @Override  
5.     public void onCreate(Bundle savedInstanceState) {  
6.          super.onCreate(savedInstanceState);  
7.          setContentView(R.layout.main);  
8.            
9.          Resources res = getResources();  
10.          TransitionDrawable transition = (TransitionDrawable) res.getDrawable(R.drawable.stylr);  
11.          ImageView mImageView = (ImageView) findViewById(R.id.imageView1);  
12.          mImageView.setImageDrawable(transition);  
13.          //2秒開始轉換   
14.          transition.startTransition(2000);  
15.     }