Current location (blue circle) has been replaced by annotation - ios

Question

In the image below, the 'My Location' annotation should be a blue circle. Instead, I get the balloon annotation. I'm pretty sure it has something to do with the last block of code but I don't know how to fix it. The surrounding annotations are fine - these a places I've added to the map.
I've removed the irrelevant bits of code:
class ExploreViewController: UIViewController, UISearchBarDelegate {
#IBOutlet weak var exploreMapView: MKMapView!
let locationManger = CLLocationManager()
let regionInMeters: Double = 5000
override func viewDidLoad() {
super.viewDidLoad()
checkLocationServices()
getSchoolMarkers()
}
#IBAction func getCurrentLocation(_ sender: UIButton) {
centerViewOnUserLocation()
}
func setupLocationManager() {
locationManger.delegate = self
locationManger.desiredAccuracy = kCLLocationAccuracyBest
}
func centerViewOnUserLocation() {
if let userLocation = locationManger.location?.coordinate {
let userRegion = MKCoordinateRegion.init(center: userLocation, latitudinalMeters: regionInMeters, longitudinalMeters: regionInMeters)
exploreMapView.setRegion(userRegion, animated: true)
}
}
func checkLocationServices() {
if CLLocationManager.locationServicesEnabled() {
setupLocationManager()
exploreMapView.showsUserLocation = true
centerViewOnUserLocation()
locationManger.startUpdatingLocation()
}
}
func getSchoolMarkers() {
// Code for creating annotations removed
self.exploreMapView.addAnnotation(schoolMarker)
}
}
extension ExploreViewController: CLLocationManagerDelegate {
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
guard let userLocation = locations.last else {return}
let currentLocation = CLLocationCoordinate2D(latitude: userLocation.coordinate.latitude, longitude: userLocation.coordinate.longitude)
let userRegion = MKCoordinateRegion.init(center: currentLocation, latitudinalMeters: regionInMeters, longitudinalMeters: regionInMeters)
exploreMapView.setRegion(userRegion, animated: true)
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
checkLocationAuthorization()
}
}
extension ExploreViewController: MKMapViewDelegate {
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
var view = exploreMapView.dequeueReusableAnnotationView(withIdentifier: "reuseIdentifier") as? MKMarkerAnnotationView
if view == nil {
view = MKMarkerAnnotationView(annotation: nil, reuseIdentifier: "reuseIdentifier")
}
view?.annotation = annotation
view?.displayPriority = .required
return view
}
}

Answer 1

You need to return nil for the MKUserLocation in order to get the default annotation view:
func mapView(_ mapView: MKMapView, viewFor annotation: MKAnnotation) -> MKAnnotationView? {
guard !annotation is MKUserLocation else {
return nil
}
var view = exploreMapView.dequeueReusableAnnotationView(withIdentifier: "reuseIdentifier") as? MKMarkerAnnotationView
if view == nil {
view = MKMarkerAnnotationView(annotation: nil, reuseIdentifier: "reuseIdentifier")
}
view?.annotation = annotation
view?.displayPriority = .required
return view
}