How to Drop the Pin to the Map on swift

write in the "override fun viewDidLoad(){

        let AAA = MKPointAnnotation()

        let centerCoordinate = CLLocationCoordinate2D(latitude: 10.79661075, longitude: 106.69064892)

            AAA.coordinate = centerCoordinate

            AAA.title = "test"

            AAA.subtitle = "abced"

        self.theMap.addAnnotation(AAA)

"addAnnotation" helps you to drop the pin on the map.

*don't forget to declare the Map = MKMapView with import MapKit.