使用CLLocationManager和MKReverseGeocoder获取城市名称

import CoreLocation
import MapKit

class ViewController: UIViewController, CLLocationManagerDelegate {

let locationManager = CLLocationManager()

locationManager.delegate = self

locationManager.requestWhenInUseAuthorization()

locationManager.startUpdatingLocation()

func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
    let location = locations.last
    let geocoder = MKReverseGeocoder(coordinate: location!.coordinate)
    geocoder.start { (placemark, error) in
        if let placemark = placemark {
            let city = placemark.locality
            print("City: \(city)")
        } else {
            print("Error: \(error?.localizedDescription ?? "Unknown error")")
        }
    }
}