Returning Mapkit Userlocation Coordinates

问题

whenever I try to return the lat/long coordinates for my current location, my application crashes with no explanation of the error...

NSLog(@"%@", mapView.userLocation.location.coordinate);

I am waiting until the phone finds the location as well...

回答1:

mapView.userLocation.location.coordinate is a struct while the %@ format specifier expects an object. This will work:

NSLog(@"%f, %f", mapView.userLocation.location.coordinate.latitude,
                 mapView.userLocation.location.coordinate.longitude);

回答2:

For some reason, this didn't work for me. It's taking me to the coordinates (0.0000, 0.0000). Below is my code if you have a chance to check it out. Thanks for the help!

[mapView setMapType:MKMapTypeStandard];
    [mapView setZoomEnabled:YES];
    [mapView setScrollEnabled:YES];
    mapView.showsUserLocation=TRUE;

    MKCoordinateRegion region = { {0.0, 0.0 }, { 0.0, 0.0 } };

    CLLocationCoordinate2D myCoord = {mapView.userLocation.location.coordinate.latitude,mapView.userLocation.location.coordinate.longitude};
    [mapView setCenterCoordinate:myCoord animated:YES];

    region.span.longitudeDelta = 0.01f;
    region.span.latitudeDelta = 0.01f;
    [mapView setRegion:region animated:YES]; 

    [mapView setDelegate:self];

来源：https://stackoverflow.com/questions/1652289/returning-mapkit-userlocation-coordinates