Android maps utils cluster icon color

Question

Is there any method to change the background color of the cluster item? (the one that displays the count of the markers, like 100+, 200+ ...). I tried to look into the sourc

Answer 1

Sadly, overriding getColor doesn't work for me. But this looks enough to change the marker color (and something else):

class ClusterItemRenderer(
    context: Context, map: GoogleMap,
    clusterManager: ClusterManager
) : DefaultClusterRenderer(context, map, clusterManager) {

    override fun onBeforeClusterItemRendered(item: ClusterMarker, markerOptions: MarkerOptions) {
        val markerDescriptor = BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA)
        markerOptions.icon(markerDescriptor)
    }
}

It's also possible to add updates according to the recommendations:

If you're using custom clustering (i.e, if you're extending DefaultClusterRenderer), you must override two additional methods in v1:

• onClusterItemUpdated() - should be the same* as your onBeforeClusterItemRendered() method
• onClusterUpdated() - should be the same* as your onBeforeClusterRendered() method

*Note that these methods can't be identical, as you need to use a Marker instead of MarkerOptions

override fun onClusterItemUpdated(item: ClusterMarker, marker: Marker) {
    val markerDescriptor = BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA)
    marker.setIcon(markerDescriptor)
}