CLLocationManager works only once - swift

Question

I'm new to swift - currently, my current location is only output once in the console when I first call setupLocationManager() on init through override func awakeFromNib(). When I want it to output my new location by calling locationManager.startUpdatingLocation() when I click a button with the method updateLocation(), it prints an error. Any way to fix this? All help is appreciated.
import Cocoa
import CoreLocation
class StatusMenuController: NSObject, CLLocationManagerDelegate {
#IBOutlet weak var statusMenu: NSMenu!
let statusItem = NSStatusBar.system().statusItem(withLength: NSVariableStatusItemLength)
var locationManager:CLLocationManager!
var currentLocation:CLLocation?
#IBAction func quitClicked(_ sender: NSMenuItem) {
NSApplication.shared().terminate(self)
}
#IBAction func updateClicked(_ sender: NSMenuItem) {
updateLocation()
}
func updateLocation() {
locationManager.startUpdatingLocation()
}
override func awakeFromNib() {
statusItem.menu = statusMenu
let icon = NSImage(named: "statusIcon")
icon?.isTemplate = true
statusItem.image = icon
statusItem.menu = statusMenu
setupLocationManager()
}
func setupLocationManager(){
locationManager = CLLocationManager()
locationManager?.delegate = self
//self.locationManager?.requestAlwaysAuthorization()
locationManager?.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
locationManager?.startUpdatingLocation()
}
// Below method will provide you current location.
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
if currentLocation == nil {
currentLocation = locations.last
locationManager?.stopMonitoringSignificantLocationChanges()
let locationValue:CLLocationCoordinate2D = manager.location!.coordinate
print(locationValue)
locationManager?.stopUpdatingLocation()
}
}
// Below Method will print error if not able to update location.
func locationManager(_ manager: CLLocationManager, didFailWithError error: Error) {
print("Error")
}
}

Answer 1

There is an if condition in the code which suspends updating the location after the location is set once (if currentLocation == nil). You have to reset currentLocation to nil before restarting the manager.
#IBAction func updateClicked(_ sender: NSMenuItem) {
currentLocation = nil
updateLocation()
}