public override void OnOSPermissionChanged(OneSignaliOS.OSPermissionStateChanges permissionStateChanges)
{
NotificationPermission from = NativeConversion.PermissionStateToXam(permissionStateChanges.From);
NotificationPermission to = NativeConversion.PermissionStateToXam(permissionStateChanges.To);
_instance.NotificationPermissionChanged?.Invoke(to, from);
}
