Add info bubble to pin and on click directions with Swift - swift2

Question

I'm trying to find out how can i put an info bubble inside the annotation view when i click a pin on a map.
In the view did load I load this code that shows me the map
let latDelta:CLLocationDegrees = 0.01
let longDelta:CLLocationDegrees = 0.01
let evntLat : NSString = venueLat
let evntLng : NSString = venueLng
let latitute1:CLLocationDegrees = evntLat.doubleValue
let longitute2:CLLocationDegrees = evntLng.doubleValue
let theSpan:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)
let pointLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitute1, longitute2)
let region:MKCoordinateRegion = MKCoordinateRegionMake(pointLocation, theSpan)
mappy.setRegion(region, animated: true)
let pinLocation : CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitute1, longitute2)
let objectAnnotation = MKPointAnnotation()
objectAnnotation.coordinate = pinLocation
objectAnnotation.title = "\(self.venumeNam)"
self.mappy.addAnnotation(objectAnnotation)
Is there any way to put inside this annotation view a button?
I've tried this
let annotationView = MKAnnotationView()
let detailButton: UIButton = UIButton(type:UIButtonType.DetailDisclosure) as UIButton
annotationView.rightCalloutAccessoryView = detailButton
But i cant figure out how to implement it on my code so it can show it.
Any idea of how can i put this bubble and configure a function when someone clicks it?
FYI it's only one pin that i'm displaying here!
Updated from this answer
class detailsViewController: UIViewController, MKMapViewDelegate {
#IBOutlet weak var mappy: MKMapView!
// Here we add disclosure button inside annotation window
func mapView(mapView: MKMapView, annotationView view: MKAnnotationView, calloutAccessoryControlTapped control: UIControl) {
if control == view.rightCalloutAccessoryView{
print(view.annotation!.title) // annotation's title
print(view.annotation!.subtitle) // annotation's subttitle
//Perform a segue here to navigate to another viewcontroller
// On tapping the disclosure button you will get here
}
}
// Here we add disclosure button inside annotation window
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
print("viewForannotation")
if annotation is MKUserLocation {
//return nil
return nil
}
let reuseId = "pin"
var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView
if pinView == nil {
//println("Pinview was nil")
pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView!.canShowCallout = true
pinView!.animatesDrop = true
}
let button = UIButton(type: .DetailDisclosure) as UIButton // button with info sign in it
pinView?.rightCalloutAccessoryView = button
return pinView
}
func displayMarkers() -> Void
{
let latDelta:CLLocationDegrees = 0.01
let longDelta:CLLocationDegrees = 0.01
let evntLat : NSString = venueLat
let evntLng : NSString = venueLng
let latitute1:CLLocationDegrees = evntLat.doubleValue
let longitute2:CLLocationDegrees = evntLng.doubleValue
let theSpan:MKCoordinateSpan = MKCoordinateSpanMake(latDelta, longDelta)
let pointLocation:CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitute1, longitute2)
let annotationView = MKAnnotationView()
let region:MKCoordinateRegion = MKCoordinateRegionMake(pointLocation, theSpan)
mappy.setRegion(region, animated: true)
let pinLocation : CLLocationCoordinate2D = CLLocationCoordinate2DMake(latitute1, longitute2)
let objectAnnotation = MKPointAnnotation()
objectAnnotation.coordinate = pinLocation
objectAnnotation.title = "\(self.venumeNam)"
self.mappy.addAnnotation(objectAnnotation)
}
}