Update parameters loading.

#293 (comment)

Author: CalebRas

Shared/Samples/Find route in mobile map package/FindRouteInMobileMapPackageView.MobileMapView.swift

@@ -94,9 +94,9 @@ extension FindRouteInMobileMapPackageView {
                 }
             }
             .task {
-                // Load the default route parameters from the route task when the sample loads.
+                // Load the route parameters sample loads.
                 do {
-                    model.routeParameters = try await model.routeTask?.makeDefaultParameters()
+                    try await model.loadRouteParameters()
                 } catch {
                     self.error = error
                 }

Shared/Samples/Find route in mobile map package/FindRouteInMobileMapPackageView.Models.swift

@@ -110,7 +110,7 @@ extension FindRouteInMobileMapPackageView.MobileMapView {
         let routeTask: RouteTask?
 
         /// The route parameters for routing with the route task.
-        var routeParameters: RouteParameters?
+        private var routeParameters: RouteParameters?
 
         /// The locator task for reverse geocoding.
         private let locatorTask: LocatorTask
@@ -149,6 +149,11 @@ extension FindRouteInMobileMapPackageView.MobileMapView {
 
         // MARK: Methods
 
+        /// Loads the route parameters from the route task.
+        func loadRouteParameters() async throws {
+            routeParameters = try await routeTask?.makeDefaultParameters()
+        }
+        
         /// Updates the marker to a given point or adds a new marker if there isn't one yet.
         /// - Parameter point: The point to set the marker to.
         func updateMarker(to point: Point) {