public class MainActivity extends Activity {

     private Button button = null;

     private ImageView imageView = null;

     @Override

     public void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.main);

         imageView = (ImageView) findViewById(R.id.imageViewId);

         button = (Button) findViewById(R.id.scaleButtonId);

         button.setOnClickListener(new AnimationButtonListener());

     }

     private class AnimationButtonListener implements OnClickListener {

         @Override

         public void onClick(View v) {

             /**

              * Animation animation =

              * AnimationUtils.loadAnimation(MainActivity.this, R.anim.alpha);

              * imageView.startAnimation(animation);

              */

             // 声明一个AnimationSet对象

             AnimationSet animationSet = new AnimationSet(false);

             AlphaAnimation alpha = new AlphaAnimation(1.0f, 0.0f);

             alpha.setInterpolator(new DecelerateInterpolator());

             RotateAnimation rotate = new RotateAnimation(0, 360,

                     Animation.RELATIVE_TO_SELF, 0.5f,

                     Animation.RELATIVE_TO_SELF, 0.5f);

             rotate.setInterpolator(new AccelerateInterpolator());

             animationSet.addAnimation(alpha);

             animationSet.addAnimation(rotate);

             animationSet.setDuration(2000);

             animationSet.setStartOffset(500);

             imageView.startAnimation(animationSet);

         }

     }

 }