MKMapView does call didSelect callback only once - ios

Question

I'm using a custom annotation in my mapkit project (in swift 3) to show multiple annotations on the map. It's showing and I can click on annotationn but only the first time. For openning the annotation again I need to click everywhere on the map and click again the annotation. Could anybody help me ? Thank you in advance.
Here are 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've found a solution ! The situation occurred when called performSegue(withIdentifier: "callDriverPopupSegue", sender: self) in didSelect because the annotation that was clicked keeped selected. So I add the code bellow in mapview controller to deselect the annotation and after that I was able to click for the second time.
override func viewWillAppear(_ animated: Bool) {
DispatchQueue.main.async {
for item in self.map.selectedAnnotations {
self.map.deselectAnnotation(item, animated: false)
}
}
}