public DeliveryPage(string zipCode)
 {
     try
     {
         InitializeComponent();
         this.BindingContext = DeliveryPageModel.GetSingleton();
         this.Appearing     += DeliveryPage_Appearing;
         (this.BindingContext as DeliveryPageModel).Initialize(this.Navigation, zipCode);
     }
     catch (Exception e)
     {
         Crashlytics.Log(e);
     }
 }
        private void DeliveryPage_Appearing(object sender, EventArgs e)
        {
            try
            {
                var model = DeliveryPageModel.GetSingleton();

                if (Debugger.IsAttached)
                {
                    model.DeliveryName    = "Scott Spivey";
                    model.DeliveryPhone   = "555-555-1212";
                    model.DeliveryAddress = "1668 Main St, Sarasota, FL, United States";
                }
            }
            catch (Exception ex)
            {
                Crashlytics.Log(ex);
            }
        }