How to change SwiftUI view if location services are not enabled - swiftui

Question

How do you change the current view of a project when location services are not allowed by the user.
Currently I have it set up like this:
{
#Published var location: CLLocation? = nil
#Published var locationAllowed:Bool = false
private let locationManager = CLLocationManager()
override init() {
super.init()
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.locationManager.distanceFilter = kCLDistanceFilterNone
self.locationManager.requestWhenInUseAuthorization()
self.locationManager.startUpdatingLocation()
}
func locationManager(_ manager: CLLocationManager, didChangeAuthoization status: CLAuthorizationStatus, didUpdateLocations locations: [CLLocation]) {
guard let location = locations.last else { return }
switch status {
case .restricted, .denied:
// Disable your app's location features
locationAllowed = false
break;
case .authorizedWhenInUse:
// Enable your app's location features.
locationAllowed = true
break;
case .authorizedAlways:
// Enable or prepare your app's location features that can run any time.
locationAllowed = true
break;
case .notDetermined:
locationAllowed = true
break;
}
self.location = location
}
}
Where the variable locationAllowed is a published variable. So how would I go about changing the view depending on the value of locationAllowed. I attempted to do it from the SceneDelagate:
if let windowScene = scene as? UIWindowScene {
let window = UIWindow(windowScene: windowScene)
let managedObjectContext = (UIApplication.shared.delegate as! AppDelegate).persistentContainer.viewContext
var contentView = ContentView().environment(\.managedObjectContext, managedObjectContext)
if (LocationManager().$locationAllowed == false){
contentView = LocationNotAllowedView().environment(\.managedObjectContext, managedObjectContext) }
window.rootViewController = UIHostingController(rootView: contentView)
self.window = window
window.makeKeyAndVisible()
}
}
This just threw a compiler error. My other idea was to have a state variable in the ContentView() and just change the view to my other view when it read false, but that didn't seem to work either.

Answer 1

you can solve it using optional view inside contentView since you had publisher
import SwiftUI
struct test: View {
#ObservedObject var worker = locationManager()
var body: some View {
HStack {
optionalLocation.init(allowed: worker.isAllowed)
}
}
}
struct optionalLocation: View {
var allowed: Bool?
var body: some View {
if let allowed = self.allowed, allowed {
return AnyView(
Text("Its Allowed!")
)
} else {
return AnyView(
Text("Not Allowed")
)
}
}
}