SwiftUI error - "Delegate must respond to locationManager:didFailWithError:"

Question

我正在尝试在 SwiftUI 中实现 MapKit 和 CoreLocation 以在我的应用程序中获取用户位置、检查权限、处理错误等。但是当我运行模拟器并授予位置权限。

不确定我做错了什么。感谢任何帮助

Here's a screenshot with where the error message shows

这是我的代码，我认为它缺少导致错误的内容：

import SwiftUI
import MapKit
import CoreLocation

// All Map data goes here

class MapViewModel: NSObject,ObservableObject, CLLocationManagerDelegate{
    
    @Published var mapView = MKMapView()
    
    // Region...
    @Published var region : MKCoordinateRegion!
    // Based on location it will set up...
    
    // Alert...
    @Published var permissionDenied = false
    
    // Map Type...
    @Published var mapType : MKMapType = .standard
    
    func locationManagerDidChangeAuthorization(_ manager: CLLocationManager) {
        
        // Checking permissions...
        
        switch manager.authorizationStatus {
        case .denied:
            // Alert...
            permissionDenied.toggle()
        case .notDetermined:
            // Requesting...
            manager.requestWhenInUseAuthorization()
        case .authorizedWhenInUse:
            // If permission given...
            manager.requestLocation()
        default:
            ()
        }
    }
    
func locationManager(_manager: CLLocationManager, didFailWithError error: Error) {
        
        // Error...
        print(error.localizedDescription)
    }
    
    // Getting user Region...
    
    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations:
                         [CLLocation]) {
        
        guard let location = locations.last else {return}
        
        self.region = MKCoordinateRegion(center: location.coordinate, latitudinalMeters: 10000, longitudinalMeters: 10000)
        
        // Updating Map...
        self.mapView.setRegion(self.region, animated: true)
         
        // Smooth animation...
        self.mapView.setVisibleMapRect(self.mapView.visibleMapRect, animated: true)
    }
    
}

Answer 1

func locationManager(_manager: CLLocationManager,

应该是

func locationManager(_ manager: CLLocationManager,

SwiftUI error - "Delegate must respond to locationManager:didFailWithError:"

SwiftUI error - "Delegate must respond to locationManager:didFailWithError:"

core-location

appdelegate

swift

swiftui