Requesting permissions using RequestAsync while the app is in the background - fix (#30697)

Author: kubaflo

src/Essentials/src/Permissions/Permissions.android.cs

@@ -102,7 +102,9 @@ public override async Task<PermissionStatus> RequestAsync()
 					return PermissionStatus.Granted;
 
 				var permissionResult = await DoRequest(runtimePermissions);
-				if (permissionResult.GrantResults.Any(g => g == Permission.Denied))
+				// OnRequestPermissionsResult can be called with an empty grantResults array if the user interaction was interrupted. 
+				// Ignoring this could lead to incorrect assumptions that permissions were granted.
+				if (permissionResult.GrantResults.Length == 0 || permissionResult.GrantResults.Any(g => g == Permission.Denied))
 					return PermissionStatus.Denied;
 
 				return PermissionStatus.Granted;