private async void TapClearCart_Tapped(object sender, EventArgs e) { var userId = Preferences.Get("user_id", 0); var response = await APIService.ClearShoppingCart(userId); if (response) { LvShoppingCart.ItemsSource = null; LblTotalPrice.Text = "0"; await DisplayAlert("", "Your cart has been cleared", "OK"); } else { await DisplayAlert("Oops", "Something went wrong", "Cancel"); } }