MapKit 経路探索

Map に経路

swift

 @State private var route: MKRoute?

..
   Map() {
    if let route {
     MapPolyline(route)
      .stroke(.green, lineWidth: 5)
    }
   }

 private func searchRoute() {
  let src = MKMapItem(placemark: MKPlacemark(coordinate: parks[0].coord))
  let dst = MKMapItem(placemark: MKPlacemark(coordinate: parks[1].coord))
  
  let req = MKDirections.Request()
  req.source = src
  req.destination = dst
  req.transportType = .walking
  
  Task {
   let directions = MKDirections(request: req)
   let results = try await directions.calculate()
   let routes = results.routes
   route = routes.first!
  }

..