iOS 定位服务提示未向用户显示

问：

因此，我的 SwiftUI 应用程序遇到了一个独特的问题，该问题需要始终访问用户的位置。调用时不显示权限提示（测试是在 iOS 17.0.3 上的物理设备上完成的，并且应用程序在再次运行之前被卸载）。请求授权代码如下所示，所有打印语句都显示用户登录后已触发请求，但一旦完成，授权状态为零。info.plist 值也都是正确的。

.onReceive(authViewModel.$isSignedIn) { isSignedIn in
            if isSignedIn {
                locationManager.requestPermission()
            }
        }

位置管理器：

func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
    DispatchQueue.main.async {
        self.authorizationStatus = status
    }
    print("Authorization status changed: \(status.rawValue)")

    switch status {
    case .notDetermined:
        print("Permission not determined, requesting permission.")
        locationManager.requestWhenInUseAuthorization()
    case .restricted, .denied:
        print("Location access restricted or denied.")
    case .authorizedAlways, .authorizedWhenInUse:
        print("Location access granted.")
        // Optionally setup geofences here if needed
    @unknown default:
        fatalError("Unhandled authorization status: \(status.rawValue)")
    }
}

请求权限方式：

class LocationManager: NSObject, ObservableObject, CLLocationManagerDelegate {
    private var locationManager = CLLocationManager()
    @Published var authorizationStatus: CLAuthorizationStatus

//..........Other methods

    func requestPermission() {
        DispatchQueue.main.async {
            self.locationManager.requestWhenInUseAuthorization()
        }
    }

主应用文件：

struct myApp: App {
    @UIApplicationDelegateAdaptor(AppDelegate.self) var appDelegate
    @StateObject var authViewModel = UserAuthViewModel()
    @StateObject var barViewModel = BarViewModel()
    @StateObject private var locationManager = LocationManager.shared

控制台输出：

Authorization status changed: 0

Permission not determined, requesting permission.

Starting location request permissions

Requesting location permission.

Location permissions requested

我尝试添加延迟以确保在应用程序处于前台并且所有 UI 组件都已加载时调用提示。

.onAppear {
        DispatchQueue.main.asyncAfter(deadline: .now() + 3) {
            barViewModel.fetchData()
            print("Starting location request permissions")
            self.requestLocationPermission()
            print("Location permissions requested")
        }
    }

即使我修改了我的应用程序委托以在启动时调用请求方法，它仍然不会提示用户：

class AppDelegate: NSObject, UIApplicationDelegate {
    
    var locationManager: LocationManager?
    
    func application(_ application: UIApplication, didFinishLaunchingWithOptions launchOptions: [UIApplication.LaunchOptionsKey: Any]?) -> Bool {
        FirebaseApp.configure()
        
        // Setup location manager
        self.locationManager = LocationManager.shared
        self.locationManager?.requestPermission() // Request permission as soon as the app launches
        
        return true
    }
}