通过Handler实现gif图的效果

int[] imageIds = new int[] {
      R.drawable.timer1,
      R.drawable.timer2,
      R.drawable.timer3,
      R.drawable.timer4,
      R.drawable.timer5,
      R.drawable.timer6
  };
  int currentImageId = 0;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);
    final ImageView imageView = (ImageView)findViewById(R.id.imageView);
    final Handler handler = new Handler() {
      @Override
      public void handleMessage(Message msg) {
        if(msg.what == 0x123) {
          imageView.setImageResource(imageIds[currentImageId++%imageIds.length]);
        }
      }
    };
    new Timer().schedule(new TimerTask() {
      
      @Override
      public void run() {
        // TODO Auto-generated method stub
        handler.sendEmptyMessage(0x123);
      }
    }, 0, 250);
  }