How to change the cluster color of google map In Swift 4

Question

I implemented it by following https://developers.google.com/maps/documentation/ios-sdk/utility/marker-clustering.

However, there is one problem.

I did not know how to control the color and transparency of the cluster marker.

I looked through the search, but I could not understand any other language code, including Object-C.

let iconGenerator = GMUDefaultClusterIconGenerator ()
let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm ()
let renderer = GMUDefaultClusterRenderer (mapView: mapView, clusterIconGenerator: iconGenerator)

I also found that this can be solved.

I want to get a way to control the border, background color, transparency, and size of the cluster marker (Circle).

Please help me.

Jon C · Accepted Answer · 2019-11-22 21:18:49Z

If you only need to change the color you can add buckets with multiple colors when initializing your GMUDefaultClusterIconGenerator (or just one as in the case below if you only need one color). I used a large number (higher than the max number of cluster items) so that all clusters will have the same color. To use multiple colors you can add multiple buckets and multiple colors.

let iconGenerator = GMUDefaultClusterIconGenerator.init(buckets: [99999], backgroundColors: [UIColor.red])
let algorithm = GMUNonHierarchicalDistanceBasedAlgorithm()
let renderer = GMUDefaultClusterRenderer(mapView: googleMapView, clusterIconGenerator: iconGenerator)

clusterManager = GMUClusterManager(map: googleMapView, algorithm: algorithm, renderer: renderer)
clusterManager.setDelegate(self, mapDelegate: self)

To use an image as your cluster background you can create a custom GMUClusterRenderer as you indicated or you can provide a group of backgroundImages for your buckets:

let iconGenerator = GMUDefaultClusterIconGenerator.init(buckets: [99999], backgroundImages: [UIImage(named: "YOUR_IMAGE_HERE")!])

Enkha · Accepted Answer · 2018-11-28 04:06:56Z

0

I found an answer with a perfect solution.

@Andr3a88 Answer : How to implement GMUClusterRenderer in Swift

The correct answer was to create the image rather than draw a circle in the script.

In the above script could also change the text.

The number of questions proves that many people like me are experiencing errors.

So I will leave a few questions to help you find a more complete solution.

answered Nov 28, 2018 at 4:06

Enkha

4301 gold badge8 silver badges23 bronze badges

Collectives™ on Stack Overflow

How to change the cluster color of google map In Swift 4

2 Answers 2

Comments

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related