title: Calling delegate method from IBAction
body: <p><strong>I am unable to call</strong> </p>
  
  <pre><code>-(void)mapView:(MKMapView *)mapView didUpdateUserLocation:(MKUserLocation *)userLocation
  </code></pre>
  
  <p><strong>On following IBAction</strong></p>
  
  <pre><code>- (IBAction)button:(UIButton *)sender {
  
  
  }
  </code></pre>
  
  <p>help me</p>