locationManager:didUpdateLocations never called - ios

Question

I have this code in my ViewController:
#IBAction func testButton(sender: UIButton) {
let locationManager = CLLocationManager()
locationManager.delegate = self
locationManager.desiredAccuracy = kCLLocationAccuracyBest
print("\(CLLocationManager.locationServicesEnabled())")
locationManager.requestWhenInUseAuthorization()
locationManager.startUpdatingLocation()
print("Started updating location")
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation: CLLocation = locations[0]
let long = userLocation.coordinate.longitude
let lat = userLocation.coordinate.latitude
print("\(long), \(lat)")
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("Location update failed: \(error)")
}
NSLocationWhenInUseUsageDescription in my plist. It should just work according to all information I could find, but it just outputs
true
Started updating location
Is edit 2 of this question true? If so, what would be the best way to move this out of the viewController?

Answer 1

Before startUpdatingLocation(), have to ask for permission using requestWhenInUseAuthorization() first.
So your codes in ViewController will be similar like the following or you can download a sample project here.
class ViewController: UIViewController, CLLocationManagerDelegate {
let locationManager: CLLocationManager = CLLocationManager()
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.delegate = self
self.locationManager.desiredAccuracy = kCLLocationAccuracyBest
self.testButton()
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
// Dispose of any resources that can be recreated.
}
func testButton() {
if CLLocationManager.authorizationStatus() != .AuthorizedWhenInUse {
self.locationManager.requestWhenInUseAuthorization()
return
}
self.locationManager.startUpdatingLocation()
}
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
let userLocation: CLLocation = locations[0]
let long = userLocation.coordinate.longitude
let lat = userLocation.coordinate.latitude
print("\(long), \(lat)")
}
func locationManager(manager: CLLocationManager, didFailWithError error: NSError) {
print("Location update failed: \(error)")
}
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus) {
if status == .AuthorizedWhenInUse {
self.testButton()
}
}
}