import UIKit
import CoreLocation
class ViewController: UIViewController, CLLocationManagerDelegate{

    var locationManager = CLLocationManager()
    override func viewDidLoad() {
        super.viewDidLoad()

        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.requestWhenInUseAuthorization()
        locationManager.startUpdatingLocation()
    }
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        let location = locations[locations.count-1]
        print("longitude : \(location.coordinate.longitude), latitude: \(location.coordinate.latitude)")
    }
}