注释Swift上的图像

Question

尝试使用我自己的图像作为“pin”，我有大约4个不同的图像。因为我使用了很多coords，这是“叠加它们”的好方法 提前谢谢。

代码如下：

         struct Location {
            let title: String
            let subtitle: String
            let imageName: String
            let latitude: Double
            let longitude: Double
        }

        let locations = [
            Location(title: "ben", subtitle: "The big", imageName: "de.png",   latitude: 56.888214, longitude: 14.779658),
            Location(title: "adam", subtitle: "bervesiell", imageName: "be.png", latitude: 56.588224, longitude: 14.779658),
            Location(title: "david", subtitle: "Downfall", imageName: "ce.png",    latitude: 56.888214, longitude: 14.579668)
        ]

        for location in locations {
            let annotation = MKPointAnnotation()
            annotation.title = location.title
            annotation.subtitle = location.subtitle
            annotation.imageName = location.imageName
            annotation.coordinate = CLLocationCoordinate2D(latitude: location.latitude, longitude: location.longitude)
            Mapview.addAnnotation(annotation)
        }
    }