title: viewForAnnotation don't show custom image - iOS9
body: <p>My viewForAnnotation works fine in iOS8 but don't show the custom pin image in iOS9. The path for image is Ok.<br>
  Whats wrong ? thank you !</p>
  
  <pre><code>func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -&gt; MKAnnotationView? {
      if annotation is MKUserLocation {
          return nil //return nil so map view draws "blue dot" for standard user location
      }
  
      let reuseId = "pin"
      var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId)
  
      if pinView == nil {
          pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId)
          pinView!.canShowCallout = true
  
      }else{
          pinView!.annotation = annotation
      }
      if annotation is MyAnnotation {
          let myPin = annotation as! MyAnnotation
  
          // Custom image in bubble
          let viewLeftAccessory = UIView(frame: CGRectMake(0, 0, pinView!.frame.size.height + 20, pinView!.frame.size.height + 20))
          let temp = UIImageView(frame: viewLeftAccessory.frame)
          temp.image = UIImage(named: myPin.iconName)
          viewLeftAccessory.addSubview(temp)
          pinView!.leftCalloutAccessoryView = viewLeftAccessory
  
          pinView!.image = UIImage(named: "BluePin")
          pinView!.rightCalloutAccessoryView = UIButton(type: UIButtonType.DetailDisclosure) as UIView
  
          return pinView
      }
      return nil
  }
  </code></pre>