Basic navigation app

Add basic navigation functionality to an iOS application using the Navigation SDK for iOS.

BasicViewController
/*
This code example is part of the Mapbox Navigation SDK for iOS demo app,
which you can build and run: https://github.com/mapbox/mapbox-navigation-ios-examples
To learn more about each example in this app, including descriptions and links
to documentation, see our docs: https://docs.mapbox.com/ios/navigation/examples/basic
*/
import Foundation
import UIKit
import MapboxCoreNavigation
import MapboxNavigation
import MapboxDirections
class BasicViewController: UIViewController {
override func viewDidLoad() {
super.viewDidLoad()
let origin = CLLocationCoordinate2DMake(37.77440680146262, -122.43539772352648)
let destination = CLLocationCoordinate2DMake(37.76556957793795, -122.42409811526268)
let options = NavigationRouteOptions(coordinates: [origin, destination])
Directions.shared.calculate(options) { [weak self] (_, result) in
switch result {
case .failure(let error):
print(error.localizedDescription)
case .success(let response):
guard let strongSelf = self else {
return
}
// For demonstration purposes, simulate locations if the Simulate Navigation option is on.
// Since first route is retrieved from response `routeIndex` is set to 0.
let navigationService = MapboxNavigationService(routeResponse: response, routeIndex: 0, routeOptions: options, simulating: simulationIsEnabled ? .always : .onPoorGPS)
let navigationOptions = NavigationOptions(navigationService: navigationService)
let navigationViewController = NavigationViewController(for: response, routeIndex: 0, routeOptions: options, navigationOptions: navigationOptions)
navigationViewController.modalPresentationStyle = .fullScreen
// Render part of the route that has been traversed with full transparency, to give the illusion of a disappearing route.
navigationViewController.routeLineTracksTraversal = true
strongSelf.present(navigationViewController, animated: true, completion: nil)
}
}
}
}