public void onCreate(Bundle savedInstanceState) {
  super.onCreate(savedInstanceState);
  LinearLayout ll = (LinearLayout) findViewById(R.id.layInfo);
 Log.i("w", ll.getWidth()+"L"+ll.getHeight());
}

final Handler handler= new Handler(){
   @Override
   public void handleMessage(Message msg) {
   if(msg.what == 1) {
    if(ll.getWidth()!=0) {
    Log.i("w", ll.getWidth()+"L"+ll.getHeight());
      timer.cancel();

    }
   } 
   }
  };
  timer = new Timer();
  TimerTask task = new TimerTask(){
   public void run() { 
    Message message = new Message(); 
    message.what = 1; 
    myHandler.sendMessage(message); 
    } 
   }; 
  timer.schedule(task,10,1000); 
 }

@Override
public void onWindowFocusChanged(boolean hasFocus) {
 super.onWindowFocusChanged(hasFocus);
 showPopupWindow()；
}

@Override
protected void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 mHandler.postDelayed(mRunnable, 1000);
}
private Runnable mRunnable = new Runnable() {
 public void run() {
 showPopupWindow();
 }
};