Clustering in MapKit with Swift

Question

Is there in Swift the possibility to cluster markers in MapKit? I know that it's possible in Google Maps SDK, but I can't find the same feature in MapKit. I've found some libraries for Obj-C, but nothing for Swift

These some of the libraries that I have found:

• FBAnnotationClustering
• CCHMapClusterController

Answer 1

I translated FBAnnotationClustering to Swift:

https://github.com/ribl/FBAnnotationClusteringSwift

Works with MapKit. It's a working sample project, and the readme includes some integration and usage instructions.

There's also an associated blog post giving background on why we chose FBAnnotationClustering (I liked it), and why we translated it to Swift (didn't feel like troubleshooting Objective-C if we ran into issues later).

http://ribl.co/blog/2015/05/28/map-clustering-with-swift-how-we-implemented-it-into-the-ribl-ios-app/

Answer 2

Use MKMarkerAnnotationViews for easy clustering. Here's an example of class I have, where you can set the clustering identifier.

Annotations with the same clustering identifier will automatically cluster.

class AnnotationView: MKMarkerAnnotationView {

    override init(annotation: MKAnnotation?, reuseIdentifier: String?) {
        super.init(annotation: annotation, reuseIdentifier: reuseIdentifier)


        self.clusteringIdentifier = "AnnotationViewIdentifier"
    }

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)
    }
}