menu item 显示icon

@Override
public boolean onMenuOpened(int featureId, Menu menu)
{
   
    if(menu != null){
        if(menu.getClass().getSimpleName().equals("MenuBuilder")){
            try{
                Method m = menu.getClass().getDeclaredMethod(
                    "setOptionalIconsVisible", Boolean.TYPE);
                m.setAccessible(true);
                m.invoke(menu, true);
            }
            catch(NoSuchMethodException e){
                Log.e(TAG, "onMenuOpened", e);
            }
            catch(Exception e){
                throw new RuntimeException(e);
            }
        }
    }
    return super.onMenuOpened(featureId, menu);
}