getViewportBounds method

Implementation

@override
Future<flutter_map.LatLngBounds> getViewportBounds() async {
  final visibleRegion = await (await mapController.future).getVisibleRegion();
  return flutter_map.LatLngBounds.fromPoints([
    visibleRegion.southwest.toLatLng(),
    visibleRegion.northeast.toLatLng(),
  ]);
}