Android 两张照片相互淡出

在res/drawable下面新建一个stylr.xml

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

public class Draw01Activity extends Activity {    /** Called when the activity is first created. */    @Override    public void onCreate(Bundle savedInstanceState) {     super.onCreate(savedInstanceState);         setContentView(R.layout.main);           Resources res = getResources();         TransitionDrawable transition = (TransitionDrawable) res.getDrawable(R.drawable.stylr);         ImageView mImageView = (ImageView) findViewById(R.id.imageView1);         mImageView.setImageDrawable(transition);         //2秒开始转换         transition.startTransition(2000);    }