使用java.util.Timer来周期性的执行制定的任务

使用java.util.Timer来周期性的执行制定的任务

 public class HandlerTest extends Activity {
     int[] images = new int[] {
             R.drawable.baiyang, R.drawable.jinniu, R.drawable.shuangyu
     };

     int currentImageID = 0;

     @Override
     protected void onCreate(Bundle savedInstanceState) {

         super.onCreate(savedInstanceState);

         setContentView(R.layout.imageview);
         final ImageView imageView = (ImageView) findViewById(R.id.imageViewtest);

         final Handler myHandler = new Handler() {

             @Override
             public void handleMessage(Message msg) {
                 if (msg.what == 0x123) {
                     imageView.setBackgroundResource(images[currentImageID++ % images.length]);
                 }
             }

         };

         new Timer().schedule(new TimerTask() {

             @Override
             public void run() {
                 myHandler.sendEmptyMessage(0x123);

             }
         }, 0, 1000);

     }

 }