MapKit not showing custom Annotation pin image on iOS9 - mkmapview

Question

My code worked fine from iOS 7 to 8. With the update yesterday the custom images on my pins were replaced by the standard pin image.
Any suggestions?
My code:
extension ViewController: MKMapViewDelegate {
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView! {
if annotation is MKUserLocation {
return nil
}
let reuseId = String(stringInterpolationSegment: annotation.coordinate.longitude)
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
if pinView == nil {
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView!.canShowCallout = true
pinView!.image = getRightImage(annotation.title!!)
}
let button = UIButton(type: UIButtonType.DetailDisclosure)
pinView?.rightCalloutAccessoryView = button
return pinView
}
}
The function to get the image returns a UIImage based on the name:
func getRightImage (shopName:String)-> UIImage{
var correctImage = UIImage()
switch shopName
{
case "Kaisers":
correctImage = UIImage(named: "Kaisers.jpg")!
default:
correctImage = UIImage(named: "sopiconsmall.png")!
}
return correctImage
}
No the map looks like this:

Answer 1

Instead of creating an MKPinAnnotationView, create a plain MKAnnotationView.
The MKPinAnnotationView subclass tends to ignore the image property since it's designed to show the standard red, green, purple pins only (via the pinColor property).
When you switch to MKAnnotationView, you'll have to comment out the animatesDrop line as well since that property is specific to MKPinAnnotationView.

Answer 2

Following code works perfectly on all iOS 6 to iOS 9 devices:
- (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id<MKAnnotation>)annotation
{
// create a proper annotation view, be lazy and don't use the reuse identifier
MKAnnotationView *view = [[MKAnnotationView alloc] initWithAnnotation:annotation
reuseIdentifier:#"identifier"];
// create a disclosure button for map kit
UIButton *disclosure = [UIButton buttonWithType:UIButtonTypeContactAdd];
[disclosure addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(disclosureTapped)]];
view.rightCalloutAccessoryView = disclosure;
view.enabled = YES;
view.image = [UIImage imageNamed:#"map_pin"];
return view;
}

Answer 3

For Swift 4
func mapView(mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
let reuseId = String(stringInterpolationSegment: annotation.coordinate.longitude)
var pinView = mapView.dequeueReusableAnnotationView(withIdentifier: reuseId)
if pinView == nil {
pinView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView!.canShowCallout = true
pinView!.image = getRightImage(annotation.title!!)
}
let button = UIButton(type: UIButtonType.DetailDisclosure)
pinView?.rightCalloutAccessoryView = button
return pinView
}