public override void Connect(IView navigationView, NavigationLayout nativeView)
        {
            base.Connect(navigationView, nativeView);

            if (ToolbarTracker == null)
            {
                ToolbarTracker = new ToolbarTracker();
                ToolbarTracker.CollectionChanged += ToolbarTrackerOnCollectionChanged;
            }

            ToolbarTracker.AdditionalTargets = NavigationView.GetParentPages();
        }