public boolean onCreateOptionsMenu(@NonNull final Menu menu) {
        final boolean result = mapActivity.superOnCreateOptionsMenu(menu);
        mapActivity.getActivity().getMenuInflater().inflate(R.menu.map_activity, menu);
        return result;
    }
Base class for the map activity. Delegates base class calls to the
provider-specific implementation.
main/src/main/java/cgeo/geocaching/maps/AbstractMap.java