Get users current location and upload it to firebase - swift

Question

I am trying to get the users current location in swifti and then upload it to firebase, but nothing seems to be uploaded
I tried adding print commands to the code to check whether I was getting the location but nothing was printed to the terminal, here is my code:
import MapKit
import FirebaseFirestore
struct Maps: View {
#State private var location = CLLocationCoordinate2D()
var body: some View {
Text("Hello World")
.onAppear {
let manager = LocationManager()
manager.getLocation { location in
self.location = location
print("Latitude: \(location.latitude), Longitude: \(location.longitude)")
}
}
}
}
class LocationManager: NSObject, CLLocationManagerDelegate {
let locationManager = CLLocationManager()
func getLocation(completion: #escaping (CLLocationCoordinate2D) -> ()) {
locationManager.delegate = self
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
self.completion = completion
}
private var completion: ((CLLocationCoordinate2D) -> ())?
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
guard let location = locations.last else { return }
let db = Firestore.firestore()
let locationRef = db.collection("locations").document()
locationRef.setData([
"latitude": location.coordinate.latitude,
"longitude": location.coordinate.longitude,
"identifier": UUID().uuidString
])
locationManager.stopUpdatingLocation()
completion?(location.coordinate)
}
}
struct Maps_Previews: PreviewProvider {
static var previews: some View {
Maps()
}
}
I added Privacy - Request when in use.. to info, so I don’t know what the problem is, I am not getting any errors

Answer 1

This code
.onAppear {
let manager = LocationManager()
// ...
}
creates and then immediately discards a LocationManager, which means that the object does not live long enough in memory to even receive one callback to the delegate method.
Move manager up to be a propery of Maps to let it stay in memory as long as the view itself.