fix authentication

Assets/Scripts/FirebaseInitializer.cs

@@ -2,6 +2,7 @@
 using System.Collections;
 using UnityEngine;
 using System;
+using UnityEngine.Android;
 
 public class FirebaseInitializer : MonoBehaviour
 {
@@ -14,8 +15,10 @@ void Awake()
     }
 
     // Start is called before the first frame update
-    IEnumerable Start()
+    void Start()
     {
+        AskForCameraAuthorizationForAndroid();
+
         FirebaseApp.CheckAndFixDependenciesAsync().ContinueWith(task =>
         {
             var dependencyStatus = task.Result;
@@ -33,8 +36,6 @@ IEnumerable Start()
                 Debug.LogError($"Could not resolve all Firebase dependencies: {dependencyStatus}");
             }
         });
-
-        yield return Application.RequestUserAuthorization(UserAuthorization.WebCam);
     }
 
     // Update is called once per frame
@@ -61,4 +62,30 @@ void Authenticate()
             onFirebaseReady?.Invoke();
         });
     }
+
+    private void AskForCameraAuthorizationForAndroid()
+    {
+        if (Permission.HasUserAuthorizedPermission(Permission.Microphone))
+        {
+            // The user authorized use of the microphone.
+        }
+        else
+        {
+            bool useCallbacks = false;
+            if (!useCallbacks)
+            {
+                // We do not have permission to use the microphone.
+                // Ask for permission or proceed without the functionality enabled.
+                Permission.RequestUserPermission(Permission.Microphone);
+            }
+            else
+            {
+                var callbacks = new PermissionCallbacks();
+                //callbacks.PermissionDenied += PermissionCallbacks_PermissionDenied;
+                //callbacks.PermissionGranted += PermissionCallbacks_PermissionGranted;
+                //callbacks.PermissionDeniedAndDontAskAgain += PermissionCallbacks_PermissionDeniedAndDontAskAgain;
+                Permission.RequestUserPermission(Permission.Microphone, callbacks);
+            }
+        }
+    }
 }

Assets/Scripts/FirebaseInitializer.cs.meta

@@ -4,7 +4,7 @@ MonoImporter:
   externalObjects: {}
   serializedVersion: 2
   defaultReferences: []
-  executionOrder: 0
+  executionOrder: -50
   icon: {instanceID: 0}
   userData: 
   assetBundleName: