public FabMenuPage()
 {
     InitializeComponent();
     if (ViewModel == null)
     {
         BindingContext = new FabMenuViewModel();
     }
 }
        void OnViewClicked(object sender, EventArgs e)
        {
            FabMenuViewModel ViewModel = BindingContext as FabMenuViewModel;

            if (ViewModel != null)
            {
                ViewModel.SelectViewCommand.Execute((sender as ButtonRound).Source);
            }
        }