I have written code to drop a pin and then show directions to it on a MapKitView and for some reason the pin drops but the directions will not show on the map. All help is welcome, thank you.
import UIKit
import MapKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate, MKMapViewDelegate {
@IBOutlet weak var MapView: MKMapView!
let locationManager = CLLocationManager()
var movedToUserLocation = false
func clean() {
MapView.removeAnnotations(MapView.annotations)
MapView.removeOverlays(MapView.overlays)
}
func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
switch status {
case .denied, .restricted:
print("Disable Parental Controles")
case .notDetermined:
manager.requestWhenInUseAuthorization()
default:
manager.startUpdatingLocation()
}
}
func mapView(_ mapView: MKMapView, didUpdate userLocation: MKUserLocation) {
if !movedToUserLocation {
mapView.region.center = mapView.userLocation.coordinate
movedToUserLocation = true
}
}
func addDirections(coor: CLLocationCoordinate2D) {
let directionsRequest = MKDirectionsRequest()
directionsRequest.source = MKMapItem(placemark: MKPlacemark(coordinate: MapView.userLocation.coordinate))
directionsRequest.destination = MKMapItem(placemark: MKPlacemark(coordinate: coor))
directionsRequest.requestsAlternateRoutes = false
directionsRequest.transportType = .any
let directions = MKDirections(request: directionsRequest)
directions.calculate { response, error in
if let res = response {
if let route = res.routes.first {
self.MapView.add(route.polyline)
self.MapView.region.center = coor
}
}
else {
print(error)
}
}
}
@IBAction func B1(_ sender: Any) {
let lat = 30.2817
let lon = -86.0188
self.clean()
let coord = CLLocationCoordinate2DMake(CLLocationDegrees(lat), CLLocationDegrees(lon))
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
annotationPoint.coordinate = coord
annotationPoint.title = "Pizza By The Sea"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
@IBAction func B2(_ sender: Any) {
let lat = 30.2844
let lon = -86.0272
self.clean()
let coord = CLLocationCoordinate2DMake(CLLocationDegrees(lat), CLLocationDegrees(lon))
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
annotationPoint.coordinate = coord
annotationPoint.title = "George's"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
@IBAction func B3(_ sender: Any) {
let lat = 30.2815
let lon = -86.0191
self.clean()
let coord = CLLocationCoordinate2DMake(CLLocationDegrees(lat), CLLocationDegrees(lon))
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
annotationPoint.coordinate = coord
annotationPoint.title = "Ticheli's Pizza"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
@IBAction func B4(_ sender: Any) {
let lat = 30.2794074
let lon = -86.0816672
self.clean()
let coord = CLLocationCoordinate2DMake(CLLocationDegrees(lat), CLLocationDegrees(lon))
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
annotationPoint.coordinate = coord
annotationPoint.title = "Big Bad Breakfast"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
@IBAction func B5(_ sender: Any) {
let lat = 30.3129063
let lon = -86.1119704
self.clean()
let coord = CLLocationCoordinate2DMake(CLLocationDegrees(lat), CLLocationDegrees(lon))
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
annotationPoint.coordinate = coord
annotationPoint.title = "Cafe Thirty-A"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKPolylineRenderer {
let renderer = MKPolylineRenderer(overlay: overlay as! MKPolyline)
renderer.strokeColor = .yellow
renderer.lineWidth = 5.0
return renderer
}
@objc func dropAnnotation(gestureRecogniser: UIGestureRecognizer) {
if gestureRecogniser.state == .began {
let holdLocation = gestureRecogniser.location(in: MapView)
let coord = MapView.convert(holdLocation, toCoordinateFrom: MapView)
let annotationView: MKPinAnnotationView!
let annotationPoint = MKPointAnnotation()
self.clean()
annotationPoint.coordinate = coord
annotationPoint.title = "\(coord.latitude), \(coord.longitude)"
annotationView = MKPinAnnotationView(annotation: annotationPoint, reuseIdentifier: "Annotation 2")
MapView.addAnnotation(annotationView.annotation!)
addDirections(coor: coord)
}
}
override func viewDidLoad() {
super.viewDidLoad()
MapView.delegate = self
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
let span = MKCoordinateSpan(latitudeDelta: MapView.region.span.latitudeDelta/200, longitudeDelta: MapView.region.span.longitudeDelta/200)
let region = MKCoordinateRegion(center: MapView.region.center, span: span)
let dropPin = UILongPressGestureRecognizer(target: self, action: #selector(self.dropAnnotation(gestureRecogniser:)))
dropPin.minimumPressDuration = CFTimeInterval(1.0)
MapView.addGestureRecognizer(dropPin)
MapView.setRegion(region, animated: true)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
}
