Hi guys I have the following problem: I have MapKit view in swiftui where I'm updating a boolean variable so I know when all the data points are displayed. I have created the following class and I can "see" the variable changing from false to true and vice versa. class GettingData: ObservableObject {              @Published var doneGettingData : Bool = false              {         didSet {             if doneGettingData {                 print("The instance property doneGettingData is now true.")             } else {                 print("The instance property doneGettingData is now false.")             }         }     } } The problem is how to use this variable in ContentView so I can turn on and off a spinner. I have tried several approaches but nothing works. In MapView I'm doing it the following way struct MapView: UIViewRepresentable {          let shared = GettingData()     var startdate : String     var depth: String        // The makeUIView(context:) method is creates an empty Map View.            func makeUIView(context: Context) -> MKMapView{          MKMapView(frame: .zero)           }         func makeCoordinator() -> MapViewCoordinator{         MapViewCoordinator(self)     }         func updateUIView(_ uiView: MKMapView, context: Context){       self.shared.doneGettingData = false \\\\ rest of the code uiView.addAnnotations(allLocations) self.shared.doneGettingData = true \\\\ rest of the code                          The variable does change when I have everything in the map But how to use it for the spinner ? Any ideias please ? Thank you

Hi everyone. This might be a silly question, but I'm new at swift. I have the following piece of code that I call mapView that loads a map with data from a url json . import SwiftUI import MapKit import Combine var locationsFillTest : Int = 0 var allLocations = [MKPointAnnotation]() var doneGettingData : Bool = false {     didSet {         if doneGettingData {             print("The instance property doneGettingData is now true.")         } else {             print("The instance property doneGettingData is now false.")         }     } } struct MapView: UIViewRepresentable {        var startdate : String     var depth: String    func makeUIView(context: Context) -> MKMapView{          MKMapView(frame: .zero)           }       func makeCoordinator() -> MapViewCoordinator{         MapViewCoordinator(self)     }         func updateUIView(_ uiView: MKMapView, context: Context){       uiView.removeAnnotations(allLocations)     allLocations = []     doneGettingData = false          let url = URL(string: "https://xxxx.com")!          URLSession.shared.dataTask(with: url) {(data,response,error) in             do {                 if let d = data {                     let decodedLists = try JSONDecoder().decode(emsc.self, from: d)                     DispatchQueue.main.async {                         locationsFillTest = allLocations.count                         for locations in decodedLists.features {                             var mapRegion = MKCoordinateRegion()                             let mapRegionSpan = 24.0                             mapRegion.span.latitudeDelta = mapRegionSpan                             mapRegion.span.longitudeDelta = mapRegionSpan                             let lat = Double(locations.properties.lat)                             let long = Double(locations.properties.lon                             let annotation = MKPointAnnotation()                             annotation.coordinate = CLLocationCoordinate2D(latitude: lat , longitude: long )                         uiView.addAnnotations(allLocations)                         uiView.delegate = context.coordinator                         uiView.showAnnotations(uiView.annotations, animated: true)                         doneGettingData = true                     }             } catch {                 print("Error decoding JSON: ", error, response!)             }         }.resume()          }      } struct MapView_Previews: PreviewProvider {     static var previews: some View {         MapView(startdate: "2020-08-23",depth: "All")     } } so far so good the points get to the map, and the variable doneGettingData does change from false too true when all the points are loaded. But now I would like to use this variable to set a spinner in my contentView, the issue is that although the variable its available and I can see it changing in the print statement it does not change in the contentView, I have tested with a Text so I could checked it. Any ideias please ? Thank you

Hi allI developing an App using swiftui and mapkit that adds several layers to the map : Annotations, Circles and Polyline.I'm adding the polylines the folloiwng way:annotation.coordinate = CLLocationCoordinate2D(latitude: locations.lat, longitude: locations.lon) let contagem = locations_map.count let polyline = MKGeodesicPolyline(coordinates: locations_map, count: contagem ) //print(contagem) let circle = MKCircle(center: destination, radius: locations.accuracy) uiView.setRegion(mapRegion, animated: true) uiView.delegate = context.coordinator uiView.addOverlay(polyline) uiView.addAnnotation(annotation) uiView.addOverlay(circle) Than when I need to remove the annotations the ciecles and the polylines I'm doing the folloiwng uiView.removeAnnotations(uiView.annotations) uiView.removeOverlays(uiView.overlays)But all works except the polylines that persist in the map !!