google-maps - 群集管理器，无法将自定义图标分配给MarkerOptions

Question

我正在使用Google Maps Utils对标记进行分组。现在，我要自定义集群图标，并使用此代码

class ClusteredMarkerRender(context: Context, map: GoogleMap, clusterManager: ClusterManager<ClusteredMarker>)
    : DefaultClusterRenderer<ClusteredMarker>(context, map, clusterManager) {

    override fun onBeforeClusterRendered(cluster: Cluster<ClusteredMarker>?, markerOptions: MarkerOptions?) {
        super.onBeforeClusterRendered(cluster, markerOptions)

        markerOptions!!.icon = BitmapDescriptorFactory.fromResource(R.id.cluster_icon)
    }

    override fun shouldRenderAsCluster(cluster: Cluster<ClusteredMarker>?): Boolean {
        return cluster!!.size > 1
    }
}

但在 markerOptions!!.icon上，Android Studio说 val cannot be reassigned。我应该如何将自定义图标分配给 markerOptions实例？

Answer 1

正如asm0dey所说，分配图标的正确方法是

markerOptions!!.icon(BitmapDescriptorFactory.fromResource(R.id.cluster_icon))