ios – The way to robotically present a MKPointAnnotation title when a operate is known as?

I am making a operate that when it is known as, it would zoom in into the customized pin annotation coordinates and present its title and subtitle. The zoom half works tremendous, the one factor I am unable to do it is the title and subtitle half.

 personal func addCustomPinRectoría1() {
        let pin1 = MKPointAnnotation()
        pin1.coordinate = coordinatesRectoría1
        pin1.title = "Rectoría"
        pin1.subtitle = "Parada TigreBus"
        map.addAnnotation(pin1)

  func selectAnnotation(_ vc: ContentViewController, didSelectLocationWith coordinates: CLLocationCoordinate2D?) {
        guard let coordinates = coordinates else {
            return
        }
        map.removeAnnotations(map.annotations)
        let selectedPin = MKPointAnnotation()
        selectedPin.coordinate = coordinates
        map.addAnnotation(selectedPin)

        // Right here is the place I have to show the pin's title and subtitle robotically

        map.setRegion(MKCoordinateRegion(
        middle: coordinates,
        span: MKCoordinateSpan(latitudeDelta: 0.008, longitudeDelta: 0.008)),
                      animated: true)
        
    }   

I do not know if that is helpful, however I am going to additionally go away this a part of the code:

  func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
        guard !(annotation is MKUserLocation) else {
            return nil
        }
        var annotationView = map.dequeueReusableAnnotationView(withIdentifier: "customized")
        if annotationView == nil {
            annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "customized")
            annotationView?.canShowCallout = true
        }
        else {
            annotationView?.annotation = annotation
        }
        annotationView?.picture = UIImage(named: "TigreBusParada")
        annotationView?.body.measurement = CGSize(width: 35, top: 100)
        return annotationView
    }