我不知道如何用swift语言标注 map .我不知道如何创建NSObject类.以下是我try 但无法运行的代码:
import Foundation
import MapKit
class MapPin : MKAnnotation
{
var mycoordinate: CLLocationCoordinate2D
var mytitle: String
var mysubtitle: String
func initMapPin (coordinate: CLLocationCoordinate2D!, title: String!, subtitle: String!)
{
mycoordinate = coordinate
mytitle = title
mysubtitle = subtitle
}
}