void Add_Clicked(object sender, System.EventArgs e)
{
var rop = new PopPage(1);
rop.AddClicked += Rop_AddClicked1;
PopupNavigation.Instance.PushAsync(rop);
}
void Handle_ItemSelected(object sender, Xamarin.Forms.SelectedItemChangedEventArgs e)
{
var rece = (Recipe)e.SelectedItem;
var rop = new PopPage(2, rece);
rop.UpdateClciked += Rop_UpdateClciked;
PopupNavigation.Instance.PushAsync(rop);
}