swift, mapView, annotation view wont show upon tap - swift

Question

I implemented map view and created simple data model for annotations.
The pins are shown on the map, but I am still unable to get the details by tapping any pin.
My Code:
import UIKit
import MapKit
class MapViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mapView: MKMapView!
#IBOutlet weak var topView: MapDataView!
var dummyModel: DummyModel?
override func viewDidLoad() {
super.viewDidLoad()
dummyModel = DummyModel()
mapView.delegate = self
mapView.showsUserLocation = true
let region = MKCoordinateRegionMakeWithDistance(mapView.userLocation.coordinate, 1000, 1000)
mapView.setRegion(region, animated: true)
let range = 0..<Int((dummyModel?.objectsArray.count)!)
Array is valid and has no nil:
for i in range {
mapView.addAnnotation((dummyModel?.objectsArray[i])!)
}
The way i add annotation to the map:
mapView.selectAnnotation(mapView.annotations[0], animated: true)
}
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
print("viewForAnnotation")
let identifier = "PubMapObject"
if annotation is PubMapObject {
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: identifier)
if annotationView == nil {
annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: identifier)
annotationView!.canShowCallout = true
let btn = UIButton(type: .detailDisclosure)
annotationView!.rightCalloutAccessoryView = btn
} else {
annotationView!.annotation = annotation
}
return annotationView
}
return nil
}
This method never called and i dont know why. i guess the problem is here, but i am unable to find it ):
func mapView(_ mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
print("annotationView")
let pub = view.annotation as! PubMapObject
}
}

Answer 1

Try to add set frame of annotation view before returning annotation view
//my annotation class and provide width and height to annotation view before returning the annotation view and give frame to
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
if (annotation.isKind(of: MKUserLocation.self)) {
return nil
}
let reuseId = "PubMapObject"
if (annotation.isKind(of: PubMapObject.self)) {
let anView = MKAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
anView.isEnabled = true
anView.isUserInteractionEnabled = true
let btn = UIButton(type: .detailDisclosure)
btn.frame = CGRect(x: 0, y: 0, width: 50, height: 70)
anView!.rightCalloutAccessoryView = btn
anView.frame = CGRect(x: 0, y: 0, width: 50, height: 70)
return anView
}
return nil
}

Answer 2

Try using didSelect function instead of calloutAccessoryControlTapped.
func mapView(_ mapView: MKMapView, didSelect annotationView: MKAnnotationView) { ...