public NotificationItemDetailPage()
        {
            InitializeComponent();

            var notificationItem = new NotificationItem
            {
                Time         = TimeSpan.MinValue,
                MedicineName = "",
                MedicineDose = 0.0M
            };

            viewModel      = new NotificationItemDetailViewModel(notificationItem);
            BindingContext = viewModel;
        }
        public NotificationItemDetailPage(NotificationItemDetailViewModel viewModel)
        {
            InitializeComponent();

            BindingContext = this.viewModel = viewModel;
        }