title: Objective C MKMapView EXC_BAD_ACCESS
body: <p>I'm a novice ObjC programmer (started learning last week); I'm having some unexpected results trying to get the lat and long from the centre of an MKMapView.</p>
  
  <p>I have the following method that gets called when the map changes region:</p>
  
  <pre><code>- (void)mapView:(MKMapView*)mapView regionDidChangeAnimated:(BOOL)animated {
      NSLog(@"------&gt; %@", mapView);
      latLabel.text = [[NSString alloc] initWithFormat:@"%@", [mapView centerCoordinate]];
  }
  </code></pre>
  
  <p>In the log I'm not getting (null), I'm getting the printout of an MKMapView object; but on the very next line I get an unhandled EXC_BAD_ACCESS.</p>
  
  <p>Any help appreciated, and I'd be happy to offer more info if it's requested.</p>
  
  <p>Thanks.</p>