[Fix] Allow navigation to be spoken when device is on silent

Shared/Samples/Augment reality to navigate route/AugmentRealityToNavigateRouteView.ARSceneView.swift

@@ -217,6 +217,12 @@ extension AugmentRealityToNavigateRouteView {
             }
 
             statusText = "Navigation will start."
+
+            // The category is set so that the navigation instructions are spoken even when silent mode is turned on.
+            let session = AVAudioSession.sharedInstance()
+            try session.setCategory(.playback, mode: .voicePrompt)
+            try session.setActive(true)
+
             await startTracking()
         }
 

Shared/Samples/Navigate route with rerouting/NavigateRouteWithReroutingView.swift

@@ -13,6 +13,7 @@
 // limitations under the License.
 
 import ArcGIS
+import AVFAudio
 import SwiftUI
 
 struct NavigateRouteWithReroutingView: View {
@@ -99,6 +100,15 @@ struct NavigateRouteWithReroutingView: View {
         .task(id: model.isNavigating) {
             guard model.isNavigating, let routeTracker = model.routeTracker else { return }
 
+            do {
+                // The category is set so that the navigation instructions are spoken even when silent mode is turned on.
+                let session = AVAudioSession.sharedInstance()
+                try session.setCategory(.playback, mode: .voicePrompt)
+                try session.setActive(true)
+            } catch {
+                self.error = error
+            }
+
             await withTaskGroup(of: Void.self) { group in
                 group.addTask { @MainActor @Sendable in
                     // Handle new tracking statuses from the route tracker.

Shared/Samples/Navigate route/NavigateRouteView.swift

@@ -234,6 +234,14 @@ private extension NavigateRouteView {
 
         /// Starts monitoring multiple asynchronous streams of information.
         private func startTracking() async {
+            do {
+                // The category is set so that the navigation instructions are spoken even when silent mode is turned on.
+                let session = AVAudioSession.sharedInstance()
+                try session.setCategory(.playback, mode: .voicePrompt)
+                try session.setActive(true)
+            } catch {
+                self.error = error
+            }
             await withTaskGroup(of: Void.self) { group in
                 group.addTask { await self.trackAutoPanMode() }
                 group.addTask { await self.trackStatus() }