osm bileşenli harita

Widget build(BuildContext context) {
  return FlutterMap(
    options: MapOptions(
      initialCenter: LatLng(41, 29),
      initialZoom: 8.0,
    ),
    children: [
      TileLayer(
        urlTemplate: "https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png",
        subdomains: ['a', 'b', 'c']
      ),
    ],
  );
}