How to implement GMUClusterRenderer in Swift

Question

I am using Google Maps API for iOS and want to use marker clustering utility. I figured out how to show clustered markers, but I would like to customize markers. Can someone

Answer 1

If you included Google-Maps-iOS-Utils source files to your project there are one "dirty" way to change icon of marker.

Unfortunately there are no public methods to set custom icon, but you can change it in source file.

In Google Map Utils/Clustering/View/GMUDefaultClusterRenderer.m

 - (void)renderCluster:(id)cluster animated:(BOOL)animated {
 ...

      GMSMarker *marker = [self markerWithPosition:item.position
                                              from:fromPosition
                                          userData:item
                                       clusterIcon:[UIImage imageNamed:@"YOUR_CUSTOM_ICON"]
                                          animated:shouldAnimate];
 ...

}

Than you could setup your cluster manager (Swift)

 private func setupClusterManager() {
        let iconGenerator = GMUDefaultClusterIconGenerator()
        let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm()
        let renderer = GMUDefaultClusterRenderer(mapView: mapView,
                                                 clusterIconGenerator: iconGenerator)


        clusterManager = GMUClusterManager(map: mapView, algorithm: algorithm,
                                           renderer: renderer)

}