CODEWITHSUNDEEP
iosswiftmapkit
LuckyLuke
LuckyLuke

Reputation: 49097

Mapkit crash when I add annotation

I am trying to add a simple annotation to my map. However it crash on the addAnnotation method. What is wrong? I am using Swift. The connection between map and the object in the Interface Builder is correctly set up. All I get is a EXC_BAD_ACCESS

class MyMapAnnotation : NSObject, MKAnnotation {

    let title: String
    let subtitle: String
    let coordinate: CLLocationCoordinate2D

    init(title: String, subtitle: String, coordinate: CLLocationCoordinate2D) {
        self.title = title
        self.subtitle = subtitle
        self.coordinate = coordinate
    }
}

And I try this in my view controller:

let coordinate = CLLocationCoordinate2D(latitude: 46.830930, longitude: 7.705106)
let annotation = MyMapAnnotation(title: "Title", subtitle: "Subtitle", coordinate: coordinate)

if CLLocationCoordinate2DIsValid(coordinate) {
    map.addAnnotation(annotation)
}

Upvotes: 1

Views: 617

Answers (1)

user467105
user467105

Reputation:

The MKAnnotation protocol requires the properties to be var and the strings to be optional (!).


In the MyMapAnnotation class, change these declarations:

let title: String
let subtitle: String
let coordinate: CLLocationCoordinate2D

to this:

var title: String!
var subtitle: String!
var coordinate: CLLocationCoordinate2D

Upvotes: 1

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