我们如何使用Swift中的firebase发送位置消息

import Firebase
import CoreLocation

FirebaseApp.configure()

let locationManager = CLLocationManager()
locationManager.requestWhenInUseAuthorization()

class ViewController: UIViewController, CLLocationManagerDelegate {
    let locationManager = CLLocationManager()
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        locationManager.delegate = self
        locationManager.desiredAccuracy = kCLLocationAccuracyBest
        locationManager.startUpdatingLocation()
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        guard let location = locations.last else { return }
        
        // 在这里可以获取到用户的位置信息，可以将位置信息发送到Firebase
        let latitude = location.coordinate.latitude
        let longitude = location.coordinate.longitude
        
        // 发送位置消息到Firebase
        sendLocationToFirebase(latitude: latitude, longitude: longitude)
    }
    
    func sendLocationToFirebase(latitude: Double, longitude: Double) {
        // 使用Firebase的Realtime Database或Firestore将位置信息发送到服务器
        // 这里可以使用Firebase的API来实现，具体实现方式可以参考Firebase的文档
        
        // 示例代码：
        let ref = Database.database().reference()
        let locationRef = ref.child("locations")
        let locationData = ["latitude": latitude, "longitude": longitude]
        locationRef.setValue(locationData)
    }
}