内部静态handler

内部静态handler

public class SampleActivity extends Activity {
 
 /**
  * Instances of static inner classes do not hold an implicit
  * reference to their outer class.
  */
 private static class MyHandler extends Handler {
  private final WeakReference<SampleActivity> mActivity;
 
  public MyHandler(SampleActivity activity) {
   mActivity = new WeakReference<SampleActivity>(activity);
  }
 
  @Override
  public void handleMessage(Message msg) {
   SampleActivity activity = mActivity.get();
   if (activity != null) {
    //handle you message here!
   //activity.handleMessage(Message msg);
   }
  }
 }
 
 private final MyHandler mHandler = new MyHandler(this);
 
 /**
  * Instances of anonymous classes do not hold an implicit
  * reference to their outer class when they are "static".
  */
 private static final Runnable sRunnable = new Runnable() {
   @Override
   public void run() { /* ... */ }
 };
 
 @Override
 protected void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
 
  // Post a message and delay its execution for 10 minutes.
  mHandler.postDelayed(sRunnable, 1000 * 60 * 10);
 
  // Go back to the previous Activity.
  finish();
 }
}