MKMarkerAnnotationView not showing callout - ios

Question

I am currently working on creating callouts for annotations I have added to my mapview via MapKit. The annotations work out well but currently callouts aren't being displayed even though I am using the right code to enable them (I believe).
HERE is my viewFor annotation code block.
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
return nil
}
if let annotation = annotation as? ClusterAnnotation {
let identifier = "cluster"
return mapView.annotationView(annotation: annotation, reuseIdentifier: identifier)
} else {
let identifier = "pin"
let annotationView = mapView.annotationView(of: MKMarkerAnnotationView.self, annotation: annotation, reuseIdentifier: identifier)
annotationView.isEnabled = true
annotationView.canShowCallout = true
annotationView.accessibilityLabel = "hi"
annotationView.isHidden = false
annotationView.rightCalloutAccessoryView = UIButton(type: .detailDisclosure)
annotationView.markerTintColor = UIColor.customBlue()
annotationView.glyphImage = UIImage(named: "person")
return annotationView
}
}
Extension code block for annotationView function.
extension MKMapView {
func annotationView<T: MKAnnotationView>(of type: T.Type, annotation: MKAnnotation?, reuseIdentifier: String) -> T {
guard let annotationView = dequeueReusableAnnotationView(withIdentifier: reuseIdentifier) as? T else {
return type.init(annotation: annotation, reuseIdentifier: reuseIdentifier)
}
annotationView.annotation = annotation
return annotationView
}
}
The annotation enlarges as I select it, and in the didSelect code block it runs the print statement I run through it. Not exactly sure what is going on that's not allowing the callout to show even though I've literally enabled just about everything.

Answer 1

Please Used This Code.
This code working fine for me.
This Code support Swift4 and Swift5.
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
// Don't want to show a custom image if the annotation is the user's location.
if (annotation is MKUserLocation) {
return nil
} else {
let annotationIdentifier = "AnnotationIdentifier"
let nibName = "MyAnnotationView" //My XIB Name
let viewFromNib = Bundle.main.loadNibNamed(nibName, owner: self, options: nil)?.first as! MyAnnotationView // get My XIB
var annotationView: MyAnnotationView?
// if there is a view to be dequeued, use it for the annotation
if let dequeuedAnnotationView = mapView.dequeueReusableAnnotationView(withIdentifier: annotationIdentifier) as? MyAnnotationView {
if dequeuedAnnotationView.subviews.isEmpty {
dequeuedAnnotationView.addSubview(viewFromNib)
}
annotationView = dequeuedAnnotationView
annotationView?.annotation = annotation
} else {
// if no views to dequeue, create an Annotation View
let av = MyAnnotationView(annotation: annotation, reuseIdentifier: annotationIdentifier)
av.addSubview(viewFromNib)
annotationView = av // extend scope to be able to return at the end of the func
}
// after we manage to create or dequeue the av, configure it
if let annotationView = annotationView {
annotationView.canShowCallout = true // callout bubble
annotationView.rightCalloutAccessoryView = UIButton(type: .detailDisclosure)
annotationView.frame = CGRect(x: 0, y: 0, width: 75, height: 80)
let customView = annotationView.subviews.first as! MyAnnotationView
customView.frame = annotationView.frame
}
return annotationView
}
}
This Code OutPut :
Happy To Help You.

Answer 2

From the source code documentation:
// If YES, a standard callout bubble will be shown when the annotation is selected.
// The annotation must have a title for the callout to be shown.
#property (nonatomic) BOOL canShowCallout;
Without the Title value being set the other items will not show up.