MKMapView userLocation showing 0,0 in simulator?

Question

I have a mapView outlet on my view (MKMapViewDelegate) with "Shows user location" enabled.

In the viewdidload for that controller I have

CLLocation *userLoc = mapView.userLocation.location;
CLLocationCoordinate2D userCoordinate = userLoc.coordinate;
NSLog(@"user latitude = %f",userCoordinate.latitude);
NSLog(@"user longitude = %f",userCoordinate.longitude); 
mapView.delegate=self;

The simulator shows the correct user location on the map (I'm using Custom location in the IOS Simulator)

But the NSLog shows 0 and 0 for latitude and longitude.

Shouldn't I be able to get the custom longitude and latitude in the simulator?

UPDATE WITH ANSWER:

Needed to implement

- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
    self.mapView.centerCoordinate = userLocation.location.coordinate;
} 

Answer 1

Location services aren't instantaneous. Your code is in viewDidLoad, so it hasn't had a chance to get a fix on your position yet. You should set the delegate property for the map view to an object that implements the MKMapViewDelegate protocol.