Can't get User Location Using MKMapViewDelegate - ios

Question

I have been reading tutorials about getting user location for several hours, yet I cannot seem to get it. I have my ViewController class implementing CLLocationManagerDelegate and MKMapViewDelegate.
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.requestWhenInUseAuthorization()
self.mapView.delegate = self
self.mapView.showsUserLocation = true
print("Is User Location Visible: \(self.mapView.userLocation.location?.coordinate.latitude)")
if CLLocationManager.locationServicesEnabled() {
locationManager.delegate = self
print("Authorization Status = \(CLLocationManager.authorizationStatus() == .Denied || CLLocationManager.authorizationStatus() == CLAuthorizationStatus.NotDetermined)")
locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
locationManager.startUpdatingLocation()
locationManager.delegate = self
}
else{
print("location services disabled")
}
}
This seems like it would work, as I have set showsUserLocation to true with MKMapView and started updating location services with CLLocationManager.
However, the printout of viewDidLoad() is:
Is User Location Visible: nil
Authorization Status = false
Whenever I try to access user location, it's nil.
I have NSLocationWhenInUseUsageDescription set in Info.plist as well, it successfully asked me if I want to allow location services and I clicked yes.
Thanks
EDIT:
Here is the full code of MapViewController.swift:
import UIKit
import MapKit
class MapViewController: UIViewController, MKMapViewDelegate, CLLocationManagerDelegate {
var mapView: MKMapView!
let locationManager = CLLocationManager()
override func loadView() {
// create a map view
mapView = MKMapView()
// set the map view we just created as the view for this controller
view = mapView
let ​​​​​​​​​​​​​​​​segmentedControl = UISegmentedControl(items: ["Standard", "Hybrid", "Satellite", "My Location"])
​​​​​​​​​​​​​​​​segmentedControl.backgroundColor = UIColor.whiteColor().colorWithAlphaComponent(0.5)
​​​​​​​​​​​​​​​​segmentedControl.selectedSegmentIndex = 0
​​​​​​​​​​​​​​​​segmentedControl.addTarget(self, action: #selector(MapViewController.mapTypeChanged(_:)), forControlEvents: .ValueChanged)
​​​​​​​​​​​​​​​​segmentedControl.translatesAutoresizingMaskIntoConstraints = false
view.addSubview(​​​​​​​​​​​​​​​​segmentedControl)
let topConstraint = ​​​​​​​​​​​​​​​​segmentedControl.topAnchor.constraintEqualToAnchor(topLayoutGuide.bottomAnchor, constant: 8)
let margins = view.layoutMarginsGuide
let leadingConstraint = ​​​​​​​​​​​​​​​​segmentedControl.leadingAnchor.constraintEqualToAnchor(margins.leadingAnchor)
let trailingConstraint = ​​​​​​​​​​​​​​​​segmentedControl.trailingAnchor.constraintEqualToAnchor(margins.trailingAnchor)
topConstraint.active = true
leadingConstraint.active = true
trailingConstraint.active = true
}
override func viewDidLoad() {
super.viewDidLoad()
self.locationManager.requestWhenInUseAuthorization()
mapView.delegate = self
mapView.showsUserLocation = true
print("Is User Location Visible: \(mapView.userLocation.location?.coordinate.latitude)")
if CLLocationManager.locationServicesEnabled() {
locationManager.delegate = self
print("Authorization Status = \(CLLocationManager.authorizationStatus() == .AuthorizedWhenInUse)")
locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
locationManager.startUpdatingLocation()
locationManager.delegate = self
}
else{
print("location services disabled")
}
}
func mapTypeChanged(segControl: UISegmentedControl) {
switch segControl.selectedSegmentIndex {
case 0:
mapView.mapType = .Standard
case 1:
mapView.mapType = .Hybrid
case 2:
mapView.mapType = .Satellite
case 3:
zoomOnLocation()
default:
break
}
}
//Zoom to last known location
func zoomOnLocation() {
print("locations = \(self.mapView.userLocation.coordinate.longitude) ")
var location:CLLocationCoordinate2D = CLLocationCoordinate2DMake(self.mapView.userLocation.coordinate.latitude, self.mapView.userLocation.coordinate.longitude)
var region:MKCoordinateRegion = MKCoordinateRegionMake(location, MKCoordinateSpanMake(0.5, 0.5))
print("zooming")
mapView.setRegion(region, animated: true)
}
//Delegate if Location has Changed
func locationManager(manager: CLLocationManager, didUpdateLocations locations: [CLLocation]){
var locValue:CLLocationCoordinate2D = manager.location!.coordinate
print("locations = \(locValue.latitude) \(locValue.longitude)")
}
//Delegate if Authorization Status has Changed
func locationManager(manager: CLLocationManager, didChangeAuthorizationStatus status: CLAuthorizationStatus){
locationManager.startUpdatingLocation()
}
func mapView(mapView: MKMapView!, didUpdateUserLocation userLocation: MKUserLocation!){
let coord = userLocation.coordinate
print("delegate: coord = \(coord.longitude)")
}
func mapViewDidFinishLoadingMap(mapView: MKMapView!){
print("finished loading mapview")
self.mapView.showsUserLocation = true
print("Is User Location Visible: \(self.mapView.userLocationVisible)")
}
func mapView(mapView: MKMapView!, mapViewWillStartLocatingUser userLocation: MKUserLocation!){
let coord = userLocation.coordinate
print("delegate: coord = \(coord.longitude)")
}
}