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Showing region around current location in MKMapKit View
- (void)viewDidLoad
    {
        [super viewDidLoad];
        // Do any additional setup after loading the view.

        costaCoffeeMapView.delegate = self;

        MKCoordinateRegion region;
        MKCoordinateSpan span;
        span.latitudeDelta=0.2;
    span.longitudeDelta=0.2;

    CLLocationCoordinate2D location = costaCoffeeMapView.userLocation.coordinate;

    region.center=location;
    region.span=span;

    [costaCoffeeMapView setRegion:region animated:YES];
    [costaCoffeeMapView regionThatFits:region];

}