MKAnnotationView problems self initializiers (convert swift 2.0 to swift 2.3)

Question

I'm right now transferring an iOS app from Swift 2.0 to 2.3 and run into Problems on very simple thing...

that's my AnnotationView class:

class PPLocationAnnotationView: MKAnnotationView {

    private let annotationSize = CGSize(width: 60.0, height: 60.0)

    init() {
        let annotationFrame = CGRect(
            origin: CGPointZero,
            size: annotationSize)
        super.init(frame: annotationFrame)

        opaque = true
        image = UIImage.annotationLocationIcon()
        enabled = true
        canShowCallout = false
        centerOffset = CGPoint(x: 0.0, y: -(UIImage.annotationLocationIcon().size.height / 2) + 10.0)

        layer.shouldRasterize = true
        layer.rasterizationScale = UIScreen.mainScreen().scale
    }
}

The Error which occures is: "Must call a designated initializer of the superclass MKAnnotationView"

So i changed this bit to:

convenience init(frame: CGRect) {
        let annotationFrame = CGRect(
            origin: CGPointZero,
            size: annotationSize)
        self.init(frame: annotationFrame)

Now i get a new Error: "use of 'self' in method call 'setupAudioSession' before super.init initializes self"

i don't get it...

would be great if some could help with that.

cheers

Answer 1

The designated initializer of a MKAnnotationView is init(annotation: MKAnnotation?, reuseIdentifier: String?)

You need to call that in your initializer.