SwiftUI-MapView

Create MapView in SwiftUI.

import SwiftUI
import MapKit
struct MapView: UIViewRepresentable {
 
 let landmarks = LandmarkAnnotation.requestMockData()
 
 func makeCoordinator() -> MapViewCoordinator {
 MapViewCoordinator(self)
 }
 
 /**
 - Description - Replace the body with a make UIView(context:) method that creates and return an empty MKMapView
 */
 func makeUIView(context: Context) -> MKMapView{
 MKMapView(frame: .zero)
 }
 
 func updateUIView(_ view: MKMapView, context: Context){
 //If you changing the Map Annotation then you have to remove old Annotations
 //mapView.removeAnnotations(mapView.annotations)
 view.delegate = context.coordinator
 view.addAnnotations(landmarks)
 }
}

Mixing UIKit inside SwiftUI by using Coordinator.

import MapKit
/*
 Coordinator for using UIKit inside SwiftUI.
 */
class MapViewCoordinator: NSObject, MKMapViewDelegate {
 
 var mapViewController: MapView
 
 init(_ control: MapView) {
 self.mapViewController = control
 }
 
 func mapView(_ mapView: MKMapView, viewFor
 annotation: MKAnnotation) -> MKAnnotationView?{
 //Custom View for Annotation
 let annotationView = MKAnnotationView(annotation: annotation, reuseIdentifier: "customView")
 annotationView.canShowCallout = true
 //Your custom image icon
 annotationView.image = UIImage(named: "locationPin")
 return annotationView
 }
}

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