Ios Swift 5从firebase到MapView的加载位置出错

我试图在应用程序中实现一个功能，其中管理员应用程序共享其位置，即将地理点保存到firebase，最终用户应用程序从存储的数据库中读取位置，并能够导航到所述位置

我遇到的问题是，管理员应用程序保存位置并将其读回没有问题，但是最终用户在展开可选值时不断抛出一个错误，表示意外发现nil。我不知道我错过了什么

此片段在内容视图中加载地图

+++++++++++++++++++++++++++ （I导入所有必需的LIB）

@ObservedObject变量obs=观察者（）

然后我有另一个地图视图文件

导入快捷键 导入核心定位 导入地图套件 进口火基

结构映射视图：UIViewRepresentable{

var name = ""
var geopoints : [String : GeoPoint]

//var ShareLoc:Bool

func makeCoordinator() -> mapView.Coordinator {
    
    return mapView.Coordinator(parent1: self)
}


let map = MKMapView()
let manager = CLLocationManager()

func makeUIView(context: UIViewRepresentableContext<mapView>) -> MKMapView {
    
    self.manager.requestAlwaysAuthorization()
    
    self.manager.requestWhenInUseAuthorization()
    
    if CLLocationManager.locationServicesEnabled() {
        manager.delegate = context.coordinator
        manager.desiredAccuracy = kCLLocationAccuracyBest
        manager.startUpdatingLocation()
    }
    
    map.mapType = .standard
    map.isZoomEnabled = true
    map.isScrollEnabled = true
    
    if let coor = map.userLocation.location?.coordinate {
        map.setCenter(coor, animated: true)
    }
    
    return map
}

func updateUIView(_ uiView: MKMapView, context: UIViewRepresentableContext<mapView>) {
    
    
    for i in  geopoints{
        
        if i.key != name{
            
            let point = MKPointAnnotation()
            point.coordinate = CLLocationCoordinate2D(latitude: i.value.latitude, longitude: i.value.longitude)
            point.title = i.key
            uiView.removeAnnotations(uiView.annotations)
            uiView.addAnnotation(point)
       }

    }
    
}

class Coordinator : NSObject,CLLocationManagerDelegate{
    
    var parent : mapView
    
    init(parent1 : mapView) {
        
        parent = parent1
    }
    
   


    
    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
     
        if status == .denied{
            
            print("denied")
        }
        if status == .authorizedWhenInUse{
            
            print("authorized")
        }
        
        
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        
        let locVal:CLLocationCoordinate2D = manager.location!.coordinate
        
        parent.map.mapType = MKMapType.standard
        
        let span = MKCoordinateSpan(latitudeDelta: 0.05, longitudeDelta: 0.05)
        let region = MKCoordinateRegion(center: locVal, span: span)
        parent.map.setRegion(region, animated: true)
        
        let annotation = MKPointAnnotation()
        annotation.coordinate = locVal
        annotation.title = "somewhere"
        annotation.subtitle = "Current location"
        parent.map.addAnnotation(annotation)
        
        
        let last = locations.last
        
       
        
        
        let db = Firestore.firestore()
        
        db.collection("locations").document("sharing").setData(["updates" : [self.parent.name : GeoPoint(latitude: (last?.coordinate.latitude)!, longitude: (last?.coordinate.longitude)!)]],merge: true) { (err) in
            
            
            if err != nil{
                
                print((err?.localizedDescription)!)
                return
            }
            print("success")
        }
        
    }
}

}

---

你能粘贴堆栈跟踪吗？谢谢你的提问，我在帖子中添加了一个截图。希望有帮助

func makeCoordinator() -> mapView.Coordinator {
    
    return mapView.Coordinator(parent1: self)
}


let map = MKMapView()
let manager = CLLocationManager()

func makeUIView(context: UIViewRepresentableContext<mapView>) -> MKMapView {
    
    self.manager.requestAlwaysAuthorization()
    
    self.manager.requestWhenInUseAuthorization()
    
    if CLLocationManager.locationServicesEnabled() {
        manager.delegate = context.coordinator
        manager.desiredAccuracy = kCLLocationAccuracyBest
        manager.startUpdatingLocation()
    }
    
    map.mapType = .standard
    map.isZoomEnabled = true
    map.isScrollEnabled = true
    
    if let coor = map.userLocation.location?.coordinate {
        map.setCenter(coor, animated: true)
    }
    
    return map
}

func updateUIView(_ uiView: MKMapView, context: UIViewRepresentableContext<mapView>) {
    
    
    for i in  geopoints{
        
        if i.key != name{
            
            let point = MKPointAnnotation()
            point.coordinate = CLLocationCoordinate2D(latitude: i.value.latitude, longitude: i.value.longitude)
            point.title = i.key
            uiView.removeAnnotations(uiView.annotations)
            uiView.addAnnotation(point)
       }

    }
    
}

class Coordinator : NSObject,CLLocationManagerDelegate{
    
    var parent : mapView
    
    init(parent1 : mapView) {
        
        parent = parent1
    }
    
   


    
    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
     
        if status == .denied{
            
            print("denied")
        }
        if status == .authorizedWhenInUse{
            
            print("authorized")
        }
        
        
    }
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        
        let locVal:CLLocationCoordinate2D = manager.location!.coordinate
        
        parent.map.mapType = MKMapType.standard
        
        let span = MKCoordinateSpan(latitudeDelta: 0.05, longitudeDelta: 0.05)
        let region = MKCoordinateRegion(center: locVal, span: span)
        parent.map.setRegion(region, animated: true)
        
        let annotation = MKPointAnnotation()
        annotation.coordinate = locVal
        annotation.title = "somewhere"
        annotation.subtitle = "Current location"
        parent.map.addAnnotation(annotation)
        
        
        let last = locations.last
        
       
        
        
        let db = Firestore.firestore()
        
        db.collection("locations").document("sharing").setData(["updates" : [self.parent.name : GeoPoint(latitude: (last?.coordinate.latitude)!, longitude: (last?.coordinate.longitude)!)]],merge: true) { (err) in
            
            
            if err != nil{
                
                print((err?.localizedDescription)!)
                return
            }
            print("success")
        }
        
    }
}

init() {

    let db = Firestore.firestore()

    db.collection("locations").document("sharing").addSnapshotListener { (snap, err) in

        if err != nil{
            print((err?.localizedDescription)!)
            return
        }

        let updates = snap?.get("updates") as? [String : GeoPoint]


        self.data["data"] = updates
    }
}