Raster Style Layer

late final MapController _controller;

@override
Widget build(BuildContext context) {
  return MapLibreMap(
      options: MapOptions(center: Geographic(lon: 9.17, lat: 47.68)),
      onMapCreated: (controller) => _controller = controller,
      onStyleLoaded: (style) async {
        const openStreetMap = RasterSource(
          id: _sourceId,
          tiles: ['https://tile.openstreetmap.org/{z}/{x}/{y}.png'],
          maxZoom: 20,
          tileSize: 256,
          attribution:
          '<a href="https://www.openstreetmap.org/copyright">OpenStreetMap</a>',
        );
        await style.addSource(openStreetMap);
        const layer = RasterStyleLayer(
          id: _layerId,
          sourceId: _sourceId,
        );
        await style.addLayer(layer);
      }
  );
}