从iOS上的元数据获取位置

import CoreLocation

override func viewDidLoad() {
    super.viewDidLoad()

    if CLLocationManager.authorizationStatus() == .authorizedAlways {
        // 获取位置信息
        let locationManager = CLLocationManager()
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.startUpdatingLocation()
    }
}

import CoreLocation

class MyCLLocationManagerDelegate: NSObject, CLLocationManagerDelegate {
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        // 处理位置信息
    }

    func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
        // 处理位置请求失败的情况
    }
}

import CoreLocation

let locationManager = CLLocationManager()
let geocoder = CLGeocoder()

locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest

geocoder.reverseGeocodeLocation(location, completionHandler: { (placemarks, error) in
    if let error = error {
        print("Error: Could not reverse geocode location: \(error.localizedDescription)")
    } else if let placemarks = placemarks {
        print("Reverse geocoded location: \(placemarks.first?.description)")
    }
})

import MapKit

let locationManager = CLLocationManager()
let mapView = MKMapView()

locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest

// 设置当前位置
let location = CLLocation(latitude: 37.7749, longitude: -122.4194)

// 设置 MKMapView 的区域
mapView.setRegion(MKCoordinateRegion(center: location.coordinate, latitudinalMeters: 1000, longitudinalMeters: 1000), animated: true)

// 将 MKMapView 添加到视图
view.addSubview(mapView)