CODEWITHSUNDEEP
iosswiftgoogle-maps
Marinos K
Marinos K

Reputation: 1839

subclassing GMSMarker and GMSMapViewDelegate didTapMarker

I'm using this simple MyMarker class

class MyMarker: GMSMarker {
    var id: UInt32 = 0
}

so that my markers can also hold an additional numerical tag. When the user taps on my markers I call a segue to open a new scene the content's of which are dynamic and drawn with respect to the MyMarker's id. I want to do something like: 

  func mapView(mapView: GMSMapView, didTapMarker marker: MyMarker) -> Bool {
        some_global_variable = marker.id;
        performSegueWithIdentifier("segue", sender: nil)
        return true
    }

the problem of course is that the GMSMapViewDelegate expects marker to be of type GMSMarker.

How can I implement the behaviour I am after?

Upvotes: 3

Views: 654

Answers (1)

Nirav D
Nirav D

Reputation: 72460

You need to type cast GMSMarker to your custom marker in it's delegate method, don't change signature of GMSMapViewDelegate methods.

func mapView(mapView: GMSMapView, didTapMarker marker: GMSMarker) -> Bool {
    if let myMarker = marker as? MyMarker {
         some_global_variable = myMarker.id
         performSegueWithIdentifier("segue", sender: nil)
    }
    return true
}

Upvotes: 5

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