SwiftUI GoogleMap Delegate Events Causes Infinite Body View Reloading - swiftui

Question

Im new to SwiftUI and Im using google maps within my app, I need to track 2 Map events as shown in below code,
Main View :
struct HomeView : View {
#State var mapView = GMSMapView()
#State var locationManager = CLLocationManager()
#State var alert = false
#State var currentLocation = CLLocationCoordinate2D()
#State var isLocationChanged = false
var body: some View{
ZStack{
MapView(mapView: self.$mapView, locationManager: self.$locationManager, alert: self.$alert, currentLocation: self.$currentLocation, isLocationChanged: self.$isLocationChanged)
.equatable()
.ignoresSafeArea(.all)
.onAppear{
self.locationManager.requestWhenInUseAuthorization()
}
if isLocationChanged {
Text("Show Search Progress")
.foregroundColor(.black)
.padding(.vertical,10)
.frame(width: UIScreen.main.bounds.width / 2)
}
}// Show Alert
}
}
MapView :
struct MapView : UIViewRepresentable, Equatable {
#Binding var mapView : GMSMapView
#Binding var locationManager : CLLocationManager
#Binding var alert : Bool
#Binding var currentLocation : CLLocationCoordinate2D
#Binding var isLocationChanged : Bool
static func == (lhs: MapView, rhs: MapView) -> Bool {
return lhs.isLocationChanged == rhs.isLocationChanged && lhs.isLocationChanged != rhs.isLocationChanged
}
func makeUIView(context: Context) -> GMSMapView {
mapView.delegate = context.coordinator
locationManager.delegate = context.coordinator
mapView.isMyLocationEnabled = true
return mapView
}
func updateUIView(_ mapView: GMSMapView, context: Context) {
locationManager.startUpdatingLocation()
mapView.animate(toLocation: self.currentLocation)
mapView.animate(toZoom: 15)
}
func makeCoordinator() -> Coordinator {
return Coordinator(googlemapview: self)
}
class Coordinator : NSObject, GMSMapViewDelegate , CLLocationManagerDelegate {
var parent : MapView
init( googlemapview : MapView) {
self.parent = googlemapview
}
func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
guard let location = locations.last else { return }
self.parent.currentLocation = CLLocationCoordinate2D(latitude: location.coordinate.latitude, longitude: location.coordinate.longitude)
self.parent.locationManager.stopUpdatingLocation()
}
func mapView(_ mapView: GMSMapView, idleAt position: GMSCameraPosition) {
self.parent.isLocationChanged = false
print("========= Idle")
}
func mapView(_ mapView: GMSMapView, willMove gesture: Bool) {
self.parent.isLocationChanged = true
print("================ Changed")
}
}
}
As shown every time the map view rendered it will fire the didChange events which will make the whole view body to reload even the map its self and this will cause an infinite main view reloading, how can i fix this ?
Update
I tried to use EquatableView to ignore the changes from the Map View but Im still getting the same results and the mapView will be redrawn evert time i scroll it ??!! I need to track when user scroll the map to new position

Answer 1

It might be due to location manager recreated, try with StateObject
struct GoogleMapsView: UIViewRepresentable {
#StateObject private var locationManager = LoccationManager() // << here !!
//...
}