Swift currentLocation return nil

Question

I need to get the current location of the user, but currentLocation return alawas nil. However, CLLocationManager.authorizationStatus is authorizedWhenInUse and on the Map, the pin of my location si correct.

import Foundation
import CoreLocation

class Location: NSObject, CLLocationManagerDelegate {
    var currentLocation: CLLocation? = nil
    var showUserLocation: Bool?
    var isAuthorised = false {
        didSet {
            if isAuthorised {
                locationManager.startUpdatingLocation()
                showUserLocation = true
            } else {
                locationManager.stopUpdatingLocation()
                currentLocation = nil
                showUserLocation = false
            }
        }
    }

    private let locationManager = CLLocationManager()

    override init() {
        super.init()

        locationManager.delegate = self
        locationManager.requestWhenInUseAuthorization()
    }

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        currentLocation = locations.last
    }

    func locationManager(_ manager: CLLocationManager, didChangeAuthorization status: CLAuthorizationStatus) {
        isAuthorised = (status == .authorizedWhenInUse)
    }

    func distance(of position: Position) -> CLLocationDistance {
        let location = CLLocation(latitude: position.lat, longitude: position.lng)
        return currentLocation?.distance(from: location) ?? Double.infinity
    }
}

extension CLLocationCoordinate2D {
    var position:Position {
        return Position(lat: latitude, lng: longitude)
    }
}

Thank you !

EDIT : I HAVE FIND THE SOLUTION !!!

In my MapViewController, I loaded the annotation before init the Map. So, the function distance was execute BEFORE the function didUpdateLocations.

I am very apologize for the lost time... Thank you very much for your help.

Answer 1

I have written the full code to fetch the current location through the LocationManager class. This code is within the LocationManager.swift file.

LocationManager.swift

import Foundation
import CoreLocation

typealias LocationHandler = (_ location: CLLocation?, _ error: Error?) -> Void

class LocationManager: NSObject {

    var locationManager: CLLocationManager?
    var locationHandler: LocationHandler?

    override init() {
        super.init()
        setupLocation()
    }

    fileprivate func setupLocation() {
        locationManager = CLLocationManager()
        locationManager?.desiredAccuracy = kCLLocationAccuracyBestForNavigation
        locationManager?.distanceFilter = kCLLocationAccuracyBest
        locationManager?.delegate = self
        locationManager?.requestWhenInUseAuthorization()
    }

    public func findCurrentLocation(_ handler: LocationHandler?) {
        if isLocationPermissionEnabled() {
            locationHandler = handler
            locationManager?.startUpdatingLocation()
        }
    }

}

extension LocationManager: CLLocationManagerDelegate {

    public func isLocationPermissionEnabled() -> Bool {
        let status = CLLocationManager.authorizationStatus()
        return (status == .denied || status == .notDetermined) ? false : true
    }

    func locationManager(_: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        if let currentLocation = locations.last {
            self.locationHandler?(currentLocation, nil)
        }
    }

    func locationManager(_: CLLocationManager, didFailWithError error: Error) {
        self.locationHandler?(nil, error)
    }
}