UIKitをUIViewRepresentableで使う

makeUIViewとupdateUIViewを実装すれば良い。プレビューも効く。

import SwiftUI
import MapKit

struct MapView: UIViewRepresentable {
    
    func makeUIView(context:Context) -> MKMapView {
        MKMapView(frame: .zero)
    }
    
    func updateUIView(_ uiView: MKMapView, context: Context) {
        let coordinate = CLLocationCoordinate2D(latitude: 34.011286, longitude: -116.166868)
        let span = MKCoordinateSpan(latitudeDelta: 2.0, longitudeDelta: 2.0)
        let region = MKCoordinateRegion(center: coordinate, span: span)
        uiView.setRegion(region, animated: true)
    }
    
}