title: Custom pin image in annotationView in iOS
body: <p>I'm trying to change from Swift 1.2 to Swift 2.0 and I'm at the end of the changes. Currently I'm making changes in the MapViewController, and there isn't any error or warning, but the custom image for my pin (annotationView) it's not assigned to the pin and it's showing the default one (red dot).</p>
  
  <p>Here is my code, I hope you can help me with some tip because I think everything is fine but it's still not working:</p>
  
  <pre><code>func parseJsonData(data: NSData) -&gt; [Farmacia] {
  
      let farmacias = [Farmacia]()
  
      do
      {
          let jsonResult = try NSJSONSerialization.JSONObjectWithData(data, options: NSJSONReadingOptions.MutableContainers) as? NSDictionary
  
          // Parse JSON data
          let jsonProductos = jsonResult?["farmacias"] as! [AnyObject]
  
          for jsonProducto in jsonProductos {
  
              let farmacia = Farmacia()
              farmacia.id = jsonProducto["id"] as! String
              farmacia.nombre = jsonProducto["nombre"] as! String
              farmacia.location = jsonProducto["location"] as! String
  
              let geoCoder = CLGeocoder()
              geoCoder.geocodeAddressString(farmacia.location, completionHandler: { placemarks, error in
  
                  if error != nil {
                      print(error)
                      return
                  }
  
                  if placemarks != nil &amp;&amp; placemarks!.count &gt; 0 {
  
                      let placemark = placemarks?[0]
  
                      // Add Annotation
                      let annotation = MKPointAnnotation()
                      annotation.title = farmacia.nombre
                      annotation.subtitle = farmacia.id
                      annotation.coordinate = placemark!.location!.coordinate
  
                      self.mapView.addAnnotation(annotation)
                  }
  
              })
          }
      }
      catch let parseError {
          print(parseError)
      }
  
      return farmacias
  }
  
  func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -&gt; MKAnnotationView? {
  
      let identifier = "MyPin"
  
      if annotation.isKindOfClass(MKUserLocation) {
          return nil
      }
  
      // Reuse the annotation if possible
      var annotationView = mapView.dequeueReusableAnnotationViewWithIdentifier(identifier)
  
      if annotationView == nil
      {
          annotationView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: identifier)
          annotationView!.canShowCallout = true
      }
  
      annotationView!.image = UIImage(named: "custom_pin.png")
  
      let detailButton: UIButton = UIButton(type: UIButtonType.DetailDisclosure)
      annotationView!.rightCalloutAccessoryView = detailButton
  
      print(annotationView!.image)
  
      return annotationView
  }
  </code></pre>
  
  <p>Thanks in advance,</p>
  
  <p>Regards.</p>