private void SetupNavigationController()
        {
            if (_albumsViewController == null)
            {
                _albumsViewController = new GMAlbumsViewController();
            }
            _albumsViewController._picker = this;
            _albumsViewController.Test();

            var _gridViewController = new GMGridViewController(this);

            _gridViewController.AssetsFetchResults = _albumsViewController._collectionsFetchResultsAssets[0][0];

            _navigationController          = new UINavigationController(_gridViewController);
            _navigationController.Delegate = new GMNavigationControllerDelegate();

            _navigationController.NavigationBar.Translucent = true;

            _navigationController.View.Frame = View.Frame;
            _navigationController.WillMoveToParentViewController(this);
            View.AddSubview(_navigationController.View);
            AddChildViewController(_navigationController);
            _navigationController.DidMoveToParentViewController(this);
        }