如何在PinView中打開UIButton打開彈出式視圖？

你好，我正在這個應用程序，所以我可以在PinView內按下按鈕，它會加載彈出視圖。我很困惑如何讓這個工作，因爲我認爲我需要把它作爲一個IBAction，但我不認爲我可以這樣做，因爲它隱藏在main.storyboard中。如何在PinView中打開UIButton打開彈出式視圖？

extension ViewController : MKMapViewDelegate { 
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView?{ 
    if annotation is MKUserLocation { 
     //return nil so map view draws "blue dot" for standard user location 
     return nil 
    } 
    let reuseId = "pin" 
    var pinView = mapView.dequeueReusableAnnotationViewWithIdentifier(reuseId) as? MKPinAnnotationView 
    pinView = MKPinAnnotationView(annotation: annotation, reuseIdentifier: reuseId) 
    pinView?.pinTintColor = UIColor(red: 52/255.0, green: 73/255.0, blue: 94/255.0, alpha: 1.0) 
    pinView?.canShowCallout = true 
    let removeButton = UIButton(type: .Custom) 
    removeButton.frame = CGRect(x: 0, y: 0, width: 40, height: 40) 
    removeButton.setImage(UIImage(named: "RadiusSettings")!, forState: .Normal) 
    pinView?.leftCalloutAccessoryView = removeButton 
    return pinView 
    } 
}

This is my main.storyboard

任何幫助，將不勝感激，謝謝

來源

2016-05-22 deee_geee