Replacing MKMapView annotation with a popover

When working recently with a MKMapView I wanted to replace the usual annotation view with a popover. First try at this resulted in the popover displaying correctly but together with the annotation view.

I then tried turning off the annotation view using

view.canShowCallout = false

inside the function

func mapView(mapView: MKMapView!, viewForAnnotation annotation: MKAnnotation!) -> MKAnnotationView!

Although at first this seemed to give the desired result, the pin could not be selected a second time. The solution was to first ensure that the annotation had been deselected before presenting the popover.

func mapView(mapView: MKMapView!,didSelectAnnotationView view: MKAnnotationView!){

    // deselect the annotation first
    self.mapView.deselectAnnotation(view.annotation, animated:true)

    var popOverContent = UIStoryboard(name:"Main", bundle:nil).instantiateViewControllerWithIdentifier("MapPopOverVC") as UIViewController
    popOverContent.modalPresentationStyle = UIModalPresentationStyle.Popover
    popOverContent.popoverPresentationController?.sourceView = view
    popOverContent.popoverPresentationController?.sourceRect = view.bounds
    var detailPopover: UIPopoverPresentationController = popOverContent.popoverPresentationController!
    detailPopover.permittedArrowDirections = UIPopoverArrowDirection.Any
    presentViewController(popOverContent, animated:true, completion:nil)
}