Android cluster and marker clicks

Question

I\'m using the android clustering utility on a map and succesffuly implemented an onclick listener with mClusterManager.setOnClusterItemClickListener() for all the markers h

Answer 1

Simple solution

Just got the same problem. The solution is simple: call ClusterManager listeners from your own event listeners. Look at the concept:

private OnMapReadyCallback listenerMapReady = (googleMap) ->
{
    googleMap.setOnCameraIdleListener(() -> {
        mClusterManager.onCameraIdle(); //call cluster manager listener
        //....your code for setOnCameraIdleListener event
    });

    googleMap.setOnMarkerClickListener(marker -> {
        if (marker != null && ... check if marker is NOT from cluster manager ....) {
            //......your code for unclustered markers, added directly to the map
            return false;
        }
        else
            return mClusterManager != null && mClusterManager.onMarkerClick(marker); // let cluster manager do his job
    });
}

To ensure that cluster manager internals will not intercept onMarkerClick listener, lets reset listener every time after cluster manager did his stuff. I've put it right into OnCameraIdle event:

public class FragmentRoutes extends Fragment {

private MapView mMapView;
private GoogleMap mMap;


@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
    View rootView = inflater.inflate(R.layout.fragment_routes, container, false);

    mMapView = rootView.findViewById(R.id.ac_main_map); // map rendering holder
    if (mMapView != null)
        mMapView.onCreate(savedInstanceState);
    //....... other onCreate mess
}


@Override
public void onResume() {
    super.onResume();
    if (mMapView != null) {
        mMapView.onResume();
        mMapView.getMapAsync(listenerMapReady);
    }
}


// on marker click listener for the map
private GoogleMap.OnMarkerClickListener listenerMarkerClick = marker -> {
    //markers which tag is TransportItem were added directly to map, I will take care of them
    if (marker != null && marker.getTag() instanceof TransportItem) {
        //......do my tasks for clicked transport marker
        return false;
    }
    else {
       // other markers are cluster manager markers, process as usual
       return mClusterManager != null && mClusterManager.onMarkerClick(marker);
    }
}

// listener for map ready event
private OnMapReadyCallback listenerMapReady = (googleMap) ->
{
    if (getContext() == null)
        return;

    mMap = googleMap;

    mMap.setOnCameraIdleListener(() -> {
        mClusterManager.onCameraIdle();

        //....your code for setOnCameraIdleListener event

        // now reset marker click listener
        mMap.setOnMarkerClickListener(listenerMarkerClick); //reset marker click listener
    });
}


}

Thats all! Happy androiding :)