From 0b7b3b512754e78fff0adb03e2c64ce1d09a0873 Mon Sep 17 00:00:00 2001
From: Aurimas Cernius <aurimasc@unity3d.com>
Date: Mon, 26 Sep 2022 12:16:28 +0300
Subject: [PATCH] Request permission on Android 13

---
 .../Android/AndroidNotificationsPlatform.cs   | 33 +++++++++++++++++--
 1 file changed, 30 insertions(+), 3 deletions(-)

diff --git a/Assets/Scripts/Android/AndroidNotificationsPlatform.cs b/Assets/Scripts/Android/AndroidNotificationsPlatform.cs
index 355c70c..164d38d 100644
--- a/Assets/Scripts/Android/AndroidNotificationsPlatform.cs
+++ b/Assets/Scripts/Android/AndroidNotificationsPlatform.cs
@@ -2,6 +2,8 @@
 using System;
 using System.Collections;
 using Unity.Notifications.Android;
+using UnityEngine;
+using UnityEngine.Android;
 
 namespace NotificationSamples.Android
 {
@@ -30,9 +32,34 @@ namespace NotificationSamples.Android
 
         public IEnumerator RequestNotificationPermission()
         {
-            var request = new PermissionRequest();
-            while (request.Status == PermissionStatus.RequestPending)
-                yield return null;
+            const string notificationPermission = "android.permission.POST_NOTIFICATIONS";
+            const int permissionRequiredSDK = 33;
+
+            using (var version = new AndroidJavaClass("android/os/Build$VERSION"))
+            {
+                var deviceSdk = version.GetStatic<int>("SDK_INT");
+                if (deviceSdk < permissionRequiredSDK)
+                    yield break;
+            }
+
+            if (Permission.HasUserAuthorizedPermission(notificationPermission))
+                yield break;
+
+            using (var playerClass = new AndroidJavaClass("com.unity3d.player.UnityPlayer"))
+            {
+                using (var activity = playerClass.GetStatic<AndroidJavaObject>("currentActivity"))
+                {
+                    using (var appInfo = activity.Call<AndroidJavaObject>("getApplicationInfo"))
+                    {
+                        var targetSdk = appInfo.Get<int>("targetSdkVersion");
+                        if (targetSdk < permissionRequiredSDK)
+                            yield break;
+                    }
+                }
+            }
+
+            Permission.RequestUserPermission(notificationPermission);
+            yield return null;
         }
 
         /// <inheritdoc />