android handler用法

标签：android   handler   

handler类的主要作用有两个

（1）在新启动的线程中发送消息

（2）在主线程中获取、处理消息

public class MainActivity extends Activity {

 private ImageView iv;
 int[] imageids = new int[] { R.drawable.fy_d_go, R.drawable.fy_d_kf,
   R.drawable.fy_d_kf2, R.drawable.ic_launcher };
 int currentId = 0;

 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  setContentView(R.layout.activity_main);
  iv = (ImageView) findViewById(R.id.imageView1);
  final Handler mhandle = new Handler() {

   @Override
   public void handleMessage(Message msg) {
    if (msg.what == 0x1233) {
     iv.setImageResource(imageids[currentId++ % imageids.length]);
    }
   }

  };
  
  new Timer().schedule(new TimerTask() {
   @Override
   public void run() {
    mhandle.sendEmptyMessage(0x1233);
   }
  }, 0, 1200);
 }

}

android handler用法

标签：android   handler   

原文地址：http://blog.csdn.net/aimingkun/article/details/44962921