flutter_map_fast_cluster 0.0.2

A more basic and faster alternative to flutter_map_marker_cluster for clustering Markers in flutter_map.

Flutter Map Fast Cluster

A fast Marker clustering plugin for flutter_map.

If you want beautiful clustering animations check out flutter_map_marker_plugin. It will perform well for quite a lot of Markers on most devices. If you are running in to performance issues and are happy to sacrifice animations then this plugin may be for you.

Warning

This plugin is new and the API is subject to change frequently in the near future.

Usage

Add flutter_map and flutter_map_fast_cluster to your pubspec:

dependencies:
  flutter_map: any
  flutter_map_fast_cluster: any # or the latest version on Pub

Add it to FlutterMap and configure it using MarkerClusterGroupLayerOptions.

  Widget build(BuildContext context) {
  return FlutterMap(
    options: MapOptions(
      zoom: 5,
      maxZoom: 15,
    ),
    children: <Widget>[
      TileLayerWidget(
        options: TileLayerOptions(
          urlTemplate: 'https://{s}.tile.openstreetmap.org/{z}/{x}/{y}.png',
          subdomains: ['a', 'b', 'c'],
        ),
      ),
      FastClusterLayerWidget(
        options: FastClusterLayerOptions(
          size: const Size(40, 40),
          markers: markers, // Provide your own.
          builder: (context, markerCount, extraClusterData) {
            return Container(
              decoration: BoxDecoration(
                  borderRadius: BorderRadius.circular(20.0),
                  color: Colors.blue),
              child: Center(
                child: Text(
                  markerCount.toString(),
                  style: const TextStyle(color: Colors.white),
                ),
              ),
            );
          },
        ),
      ),
    ],
  );
}

Run the example

See the example/ folder for a working example app.