public SlideDownMenuPage()
        {
            Content = new StackLayout {
                VerticalOptions   = LayoutOptions.Center,
                HorizontalOptions = LayoutOptions.Center,
                Children          =
                {
                    new Label {
                        Text = "Click the button in top right"
                    }
                }
            };

            // You can add a ToolBar button to show the Menu.
            this.ToolbarItems.Add(new ToolbarItem {
                Command = new Command(() => {
                    if (ShowMenuAction != null)
                    {
                        ShowMenuAction();
                    }
                }),
                Icon     = "Settings.png",
                Text     = "Settings",
                Priority = 0
            });

            this.SlideMenu = new SlideDownMenuView();
        }
 public PageImpInterface(MenuView menuview) : this()
 {
     this.SlideMenu          = menuview;
     menuview.NavigationPage = (orientation) => {
         Navigation.PushModalAsync(new MainPage(new MenuView(orientation)
         {
             IsFullScreen = true
         }));
     };
 }