ActivityGroup openOptionsMenu

@Override public boolean onKeyUp(int keyCode, KeyEvent event) {

　　if(keyCode==KeyEvent.KEYCODE_MENU) {

　　　　this.getLocalActivityManager().getCurrentActivity().openOptionsMenu();

　　}else if(keyCode == KeyEvent.KEYCODE_BACK){

　　　　finish();

　　}

　　return super.onKeyDown(keyCode, event);

}