private void setSubtitle() {
        final String subtitle = calculateSubtitle();
        if (StringUtils.isEmpty(subtitle)) {
            return;
        }

        final ActionBar actionBar = getSupportActionBar();
        if (actionBar != null) {
            actionBar.setSubtitle(MapUtils.getColoredValue(subtitle));
        }
    }
Get the current map state from the map view if it exists or from the mapStateIntent field otherwise.

@return the current map state as an array of int, or null if no map state is available
main/src/main/java/cgeo/geocaching/maps/mapsforge/v6/NewMap.java