MapKit Polyline

jean-luc · décembre 2017

Bonjour,

je patauge depuis plusieurs jours pour faire aboutir le tracé d'un parcours sur une MapView.

Mon code est le suivant:



import UIKit

import MapKit



class ViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {



@IBOutlet weak var mapkitView: MKMapView!

let locationManager = CLLocationManager()





let latitudeHouse: CLLocationDegrees = 51.6545887

let longitudeHouse: CLLocationDegrees = 9.6455467



override func viewDidLoad() {

super.viewDidLoad()



mapkitView.delegate = self

mapkitView.showsScale = true

mapkitView.showsPointsOfInterest = true

mapkitView.showsUserLocation = true



locationManager.requestAlwaysAuthorization()

locationManager.requestWhenInUseAuthorization()



if CLLocationManager.locationServicesEnabled() {

locationManager.delegate = self

locationManager.desiredAccuracy = kCLLocationAccuracyBest

locationManager.startUpdatingLocation()

}



let sourceCoordinates =  locationManager.location?.coordinate

let destCoordinates =  CLLocationCoordinate2DMake(latitudeHouse, longitudeHouse)



let sourcePlacemark = MKPlacemark(coordinate: sourceCoordinates!)

let destPlacemark = MKPlacemark(coordinate: destCoordinates)

let sourceItem = MKMapItem(placemark: sourcePlacemark)

let destItem = MKMapItem(placemark: destPlacemark)



let directionRequest = MKDirectionsRequest()

directionRequest.source = sourceItem

directionRequest.destination = destItem

directionRequest.transportType = .automobile



let directions = MKDirections(request: directionRequest)

directions.calculate(completionHandler: {

response, error in

guard let response = response else {

if error != nil {

print("Something Went Wrong")

}

return

}



let route = response.routes[0]

self.mapkitView.add(route.polyline, level: .aboveRoads)

let rekt = route.polyline.boundingMapRect

self.mapkitView.setRegion(MKCoordinateRegionForMapRect(rekt), animated: true)



})

}



func mapView(_ mapView: MKMapView, rendererFor overlay: MKOverlay) -> MKOverlayRenderer {

let renderer = MKPolylineRenderer()

renderer.strokeColor = UIColor.red

renderer.lineWidth = 5.0

return renderer

}

}

Mais j'obtiens des codes d'erreurs suivants dont je n'ai pas vraiment compris la signification:



2017-12-10 13:18:35.106519+0100 Navigation[3169:984687] [VKDefault] Tile 542450.359497.20 (128) in current unloaded state for 10.97 seconds - Raster Overlays Beneath Labels - Failed to decode (terminal) (10.97 sec)

Alors si quelqu'un peut orienter mes recherches ou m'apporter son aide

Merci d'avance

Jean-Luc