How do I keep a menu item group open when rotating android device

Question

I've handled screen rotation config changes in the android manifest, which works for dialog themed activities, however for these menu groups, which open after selecting a menu item (in onOptionsItemSelected) still close when I rotate the screen. Can I handle these in onConfigurationChanged? Or is there a better way? I've attached the code that opens the submenu.

@Override
public boolean onOptionsItemSelected(MenuItem item) {
   if (item.getGroupId() == R.id.submenu) {
      if (item.getItemId() == this.submenu) {
         return true;
      }
      this.value = item.getItemId();
      item.setChecked(true);
      //do something with value
      return true;
   }
   //...
   return super.onOptionsItemSelected(item);
}

Answer 1

you will need to override

    @Override
 public void onConfigurationChanged(Configuration newConfig) {
    // TODO Auto-generated method stub
    super.onConfigurationChanged(newConfig);
 }

But to do this you must specify the configuration change you will handle yourself by adding to the manifest file on the Activity level the tag

     android:configChanges=["mcc", "mnc", "locale",
                             "touchscreen", "keyboard", "keyboardHidden",
                             "navigation", "orientation", "screenLayout",
                             "fontScale", "uiMode"]

on onConfigurationChanged save the state and reload it on onResume

Answer 2

This ended up being a very simple fix. I needed to add the line android:configChanges="orientation" to my activity in the AndroidManifest.