Tracking / Follow me

import UIKit
import TrimbleMaps
import TrimbleMapsAccounts
import RoutePlugin
import TrimbleMapsWebservicesClient

class TrackingViewController: UIViewController, AccountManagerDelegate {

    internal var mapView: MGLMapView!

    override func viewDidLoad() {
        super.viewDidLoad()

        let account = Account(apiKey: apiKey, region: Region.northAmerica)
        AccountManager.default.account = account
        AccountManager.default.delegate = self
    }

    func stateChanged(newStatus: AccountManagerState) {
        if newStatus == .loaded {
            DispatchQueue.main.async {
                // Create a map view
                self.mapView = MGLMapView(frame: self.view.bounds)

                // Add the map
                self.view.addSubview(self.mapView)

                // Start tracking the user
                self.mapView.userTrackingMode = .followWithHeading
                self.mapView.showsUserLocation = true
                self.mapView.showsUserHeadingIndicator = true
            }
        }
    }

    func mapView(_ mapView: MGLMapView, didUpdate userLocation: MGLUserLocation?) {
        guard let coord = userLocation?.coordinate else {
            return
        }

        mapView.setCenter(coord, animated: true)
    }
}

<key>NSLocationWhenInUseUsageDescription</key>
    <string>Your precise location is used to calculate turn-by-turn directions, show your location on the map, and help improve the map.</string>
    <key>NSLocationTemporaryUsageDescriptionDictionary</key>
    <dict>
      <key>LocationAccuracyAuthorizationDescription</key>
      <string>Please enable precise location. Turn-by-turn directions only work when precise location data is available.</string>
    </dict>