Invalid region error in MapKit

Question

I am using MapKit, and every now and then I get the following error when starting the app.

'Invalid Region <center:nan, nan span:+180.00000000, +360.00000000>'

The code that I use for setting the region is the following.

- (void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
{
    if (!self.initialLocation)
    {
        NSLog(@"Center is %f", userLocation.coordinate.longitude); // Debug
        [self calculateLocationAddress]; // Reverse geolocating, does not create the error
        self.initialLocation = userLocation.location;

        MKCoordinateRegion region;
        region.center = userLocation.coordinate;

        // Region to show when app is loaded
        region.span = MKCoordinateSpanMake(0.04, 0.04);

        region = [mapView regionThatFits:region];
        [mapView setRegion:region animated:YES];
    }
}

The log in that method shows that the user location IS set, as I keep getting correct values in it, even though it crasches with the invalid region error. I have also tried using CLLocationCoordinate2DIsValid to validate the region, same error though. As mentioned above, this error is very sporadical, showing up every now and then. Any ideas on what I could be doing wrong?

EDIT: The error pretty much always disappears if I open the storyboard and make a change to it before compiling again.

Answer 1

I have faced the same issue and it resolved from the below code.

if ( (region.center.latitude >= -90) && (region.center.latitude <= 90) && (region.center.longitude >= -180) && (region.center.longitude <= 180)) {
            self.mapView.setRegion(region, animated: true)
            
            }
            else
            {
            print("Invalid region!")
        }

Happy Coding Thanks