Open NavigationController on tap of button in MKAnnotationView - ios

Question

I have MKAnnotationView where I am showing title,subtitle and info button, on tap of location pin.
I have added the following code
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
//return nil so map view draws "blue dot" for standard user location
return nil
}
let reuseId = "pin"
let pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView.canShowCallout = true
pinView.animatesDrop = true
pinView.pinTintColor = UIColor.darkGrayColor()
pinView.draggable = true
let btn = UIButton(type: .DetailDisclosure)
pinView.rightCalloutAccessoryView = btn
let tapGesture = UITapGestureRecognizer(target: self,action: #selector(MapView.calloutTapped(_:)))
pinView.addGestureRecognizer(tapGesture)
return pinView
}
func calloutTapped(sender: UITapGestureRecognizer) {
// if sender.state != UIGestureRecognizerState.Began { return }
let annView: MKAnnotationView! = sender.view as? MKAnnotationView
let ann:MKAnnotation! = annView!.annotation
print("handlePinButtonTap: ann.title \(ann!.title!!) and \(ann!.subtitle!!)")
let touchLocation = sender.locationInView(mapView)
let locationCoordinate = mapView.convertPoint(touchLocation, toCoordinateFromView: mapView)
print("Tapped at lat: \(locationCoordinate.latitude) long: \(locationCoordinate.longitude) " )
let storyboard : UIStoryboard = UIStoryboard(name: "ShoppingCart", bundle: nil)
let vc : ShoppingCartController = storyboard.instantiateViewControllerWithIdentifier("ShoppingCart") as! ShoppingCartController
let navigationController = UINavigationController(rootViewController: vc)
self.presentViewController(navigationController, animated: true, completion: nil)
}
However upon using this code,on tap of the pin on the map, user is navigated to the ShoppingCart storyboard. I want to present that ViewController on the tap of info button along with the title,subtitle, latitude and longitude of the event that has been tapped.

Answer 1

Here is the working solution
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if annotation is MKUserLocation {
//return nil so map view draws "blue dot" for standard user location
return nil
}
let reuseId = "pin"
let pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
pinView.canShowCallout = true
pinView.animatesDrop = true
pinView.pinTintColor = UIColor.darkGrayColor()
pinView.draggable = true
let btn = UIButton(type: .DetailDisclosure)
pinView.rightCalloutAccessoryView = btn
let tapGesture = UITapGestureRecognizer(target: self,action: #selector(MapView.calloutTapped(_:)))
pinView.addGestureRecognizer(tapGesture)
return pinView
}
func calloutTapped(sender: UITapGestureRecognizer) {
// if sender.state != UIGestureRecognizerState.Began { return }
let annView: MKAnnotationView! = sender.view as? MKAnnotationView
let ann:MKAnnotation! = annView!.annotation
print("handlePinButtonTap: ann.title \(ann!.title!!) and \(ann!.subtitle!!)")
let touchLocation = sender.locationInView(mapView)
let locationCoordinate = mapView.convertPoint(touchLocation, toCoordinateFromView: mapView)
print("Tapped at lat: \(locationCoordinate.latitude) long: \(locationCoordinate.longitude) " )
}