public async void Reg(object o, EventArgs e)
{
reg.IsVisible = false;
prijava.IsVisible = false;
activity.IsVisible = true;
var odg = await model.Reg();
reg.IsVisible = true;
prijava.IsVisible = true;
activity.IsVisible = false;
if (odg != "")
{
await DisplayAlert("Greška", odg, "Ok");
}
}
