How can I use functions like onClusterItemRendered for my ClusterManager?

Question

I am trying to get a reference to my markers (without using getMarkerCollections) on my clustered Google Map but I am having trouble finding where to override this function.

I have made a typical ClusterManager that works fine, but I can't override the function anywhere in that class.

Do I need to make a custom class for this and how would I do that?

Answer 1

To answer your question directly, you will need to create a custom class that extends DefaultClusterRenderer, and then override the onClusterItemRendered() method:

public class MyRenderer extends DefaultClusterRenderer<MyItem> {

    public MyRenderer(Context context, GoogleMap map, ClusterManager<MyItem> clusterManager) {
        super(context, map, clusterManager);
    }

    @Override
    protected void onClusterItemRendered(MyItem clusterItem,
                                         Marker marker) {
        super.onClusterItemRendered(clusterItem, marker);

        //other stuff......
    }
}

Then, you would call the setRenderer() method and give it a new instance of your MyRenderer object:

mClusterManager.setRenderer(new MyRenderer(this, mMap, mClusterManager));