如何根据osmdroid中的标记数来设置集群的图标？

public class CustomClusterMarker extends DefaultClusterRenderer<YourMarkerClass> {
    public CustomClusterMarker(Context context, MapView mapView, ClusterManager<YourMarkerClass> clusterManager) {
        super(context, mapView, clusterManager);
    }

    @Override
    protected void onBeforeClusterRendered(Cluster<YourMarkerClass> cluster, MarkerOptions markerOptions) {
        // 根据标记数设置聚合后的图标样式
        int clusterSize = cluster.getSize();
        if (clusterSize < 10) {
            // 设置小图标
            markerOptions.icon(yourSmallIcon);
        } else {
            // 设置大图标
            markerOptions.icon(yourLargeIcon);
        }
    }
}

ClusterManager<YourMarkerClass> clusterManager = new ClusterManager<>(this, mapView);
CustomClusterMarker clusterMarker = new CustomClusterMarker(this, mapView, clusterManager);
clusterManager.setRenderer(clusterMarker);

YourMarkerClass marker = new YourMarkerClass(latitude, longitude);
clusterManager.addItem(marker);

@Override
protected void onResume() {
    super.onResume();
    clusterManager.cluster();
}