Not accepting click on the Annotation for the second time

Question

I am using a customization of Annotation in my mapkit design (Swift 3) to show more than one Annotation(pin) on the map. It is showing and being able to click on the annotationn, but only the first time. So you can click on the Annotation and open it, only if I click anywhere on the map and then click on the Annotation again. Has anyone ever been through this that could help ? I thank you in advance.

Follows the functions I’m using:

func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
    if annotation is MKUserLocation
    {
        return nil
    }
    var annotationView = self.map.dequeueReusableAnnotationView(withIdentifier: "Pin")
    if annotationView == nil{
        annotationView = AnnotationView(annotation: annotation, reuseIdentifier: "Pin")
        annotationView?.canShowCallout = false
    }else{
        annotationView?.annotation = annotation
    }
    if (indexPin > 0) {
        indexPin = indexPin - 1
        let pin : PinAnnotation = pinAnotationList[indexPin]
        annotationView?.image = UIImage(named: pin.imageName)
    }
    return annotationView
}

func mapView(_ mapView: MKMapView, didSelect view: MKAnnotationView)
{
    if view.annotation is MKUserLocation
    {
        return
    }
    let pin = view.annotation as! PinAnnotation
    if pin.userType == "O" {
        if (currentLatitude == 0 || currentLatitude2 == 0) {
             self.showAlert(self, message: "It's necessary to set origin and destiny addresses")
            return
        }
        AppVars.DriverId = pin.userId
        AppVars.VehicleId = pin.vehicleId
        AppVars.LatitudeDriver = pin.coordinate.latitude
        AppVars.LongitudeDriver = pin.coordinate.longitude
        performSegue(withIdentifier: "callDriverPopupSegue", sender: self)
    }
    else {
        let customView = (Bundle.main.loadNibNamed("AnnotationView", owner: self, options: nil))?[0] as! CustomCalloutView
        var calloutViewFrame = customView.frame;
        let point = CGPoint(x: calloutViewFrame.size.width/2 + 15,y :calloutViewFrame.size.height - 10)
        calloutViewFrame.origin = point
        customView.frame = calloutViewFrame;
        customView.titleLabel.text = pin.title
        view.addSubview(customView)
    }
}

func mapView(_ mapView: MKMapView, didDeselect view: MKAnnotationView) {
    if (view.isKind(of: PinAnnotation.self))
    {
        for subview in view.subviews
        {
            subview.removeFromSuperview()
        }
    }

    if (view.isKind(of: AnnotationView.self))
    {
        for subview in view.subviews
        {
            subview.removeFromSuperview()
        }
    }

}

Class Pinannotation

import MapKit

class PinAnnotation: NSObject, MKAnnotation {

    var coordinate: CLLocationCoordinate2D
    var userId: Int!
    var vehicleId:Int!
    var userType: String!
    var imageName: String!
    var title: String!
    init(coordinate: CLLocationCoordinate2D) {
        self.coordinate = coordinate
    }
}

Class Annotationview

import MapKit

class AnnotationView: MKAnnotationView
{
}

Answer 1

I just found a solution ! The situation occurred when I called the "performSegue(withIdentifier: "callDriverPopupSegue", Sender: self)" inside the didSelect because the Annotation that was clicked remained selected. Then I added the code below in the mapview Controller to unselect the Annotation. With this the Annotation is released to open again by click.

override func viewWillAppear(_ animated: Bool) {
        DispatchQueue.main.async {
            for item in self.map.selectedAnnotations {
                self.map.deselectAnnotation(item, animated: false)
            }
        }
}