private void CreateMenu()
{
_menu = new SideMenu(SLWIOC.Get <IAuthManager>());
_menu.MenuItemTapped += _menu_MenuItemTapped;
_menu.IsVisible = false;
_menu.TranslationX = -MENU_WIDTH;
_menu.BackgroundColor = AppStyle.MenuBarBackground.ToXamFormsColor();
_menu.WidthRequest = MENU_WIDTH;
_menu.HorizontalOptions = LayoutOptions.Start;
_menu.SetValue(Grid.RowProperty, 1);
_pageMenuMask = new Grid()
{
BackgroundColor = Xamarin.Forms.Color.Black, Opacity = 0.50
};
_pageMenuMask.SetValue(Grid.RowProperty, 1);
_pageMenuMask.IsVisible = false;
}