Yes, this can be done. ClusterManager
maintains two MarkerManager.Collections
:
- one for cluster markers, and
- one for individual item markers
You can set a custom InfoWindowAdapter
for each of these kinds of markers independently.
Implementation
First, install your ClusterManager's MarkerManager as the map's InfoWindowAdapter:
ClusterManager<MarkerItem> clusterMgr = new ClusterManager<MarkerItem>(context, map);
map.setInfoWindowAdapter(clusterMgr.getMarkerManager());
Next, install your custom InfoWindowAdapter
as the adapter for one or both of the marker collections:
clusterMgr.getClusterMarkerCollection().setOnInfoWindowAdapter(new MyCustomAdapterForClusters());
clusterMgr.getMarkerCollection().setOnInfoWindowAdapter(new MyCustomAdapterForItems());
The final piece is mapping the raw Marker
object that you'll receive in your custom InfoWindowAdapter's callback to the ClusterItem
object(s) that you added to the map in the first place. This can be achieved using the onClusterClick and onClusterItemClick listeners, as follows:
map.setOnMarkerClickListener(clusterMgr);
clusterMgr.setOnClusterClickListener(new OnClusterClickListener<MarkerItem>() {
@Override
public boolean onClusterClick(Cluster<MarkerItem> cluster) {
clickedCluster = cluster; // remember for use later in the Adapter
return false;
}
});
clusterMgr.setOnClusterItemClickListener(new OnClusterItemClickListener<MarkerItem>() {
@Override
public boolean onClusterItemClick(MarkerItem item) {
clickedClusterItem = item;
return false;
}
});
Now you have everything you need to assemble your custom InfoWindow content in your respective Adapters! For example:
class MyCustomAdapterForClusters implements InfoWindowAdapter {
@Override
public View getInfoContents(Marker marker) {
if (clickedCluster != null) {
for (MarkerItem item : clickedCluster.getItems()) {
// Extract data from each item in the cluster as needed
}
}
// build your custom view
// ...
return view;
}
}