private async void btnOrderClick(object sender, EventArgs e)
{
DateTime dt = new DateTime(pkDatePicker.Picker.Date.Year, pkDatePicker.Picker.Date.Month, pkDatePicker.Picker.Date.Day,
pkTime.Picker.Time.Hours, pkTime.Picker.Time.Minutes, pkTime.Picker.Time.Seconds);
var order = await viewModel.OrderTable(dt, quantityPeople.Quantity);
if (order == null)
{
await MultiContentPages.Instance.DisplayAlert("Thông báo", "Order không thành công?", "Không");
}
else
{
contentQrCode.Children.Add(GenerateQR("ORDER" + order.code));
}
var res = await MultiContentPages.Instance.DisplayAlert("Thông báo", "Bạn có muốn đặt món trước không?", "Có", "Không");
if (res == true)
{
BackgroundWorker wk = new BackgroundWorker();
wk.DoWork += (s, z) =>
{
z.Result = new MenuFood.MenuPage(true);
};
MultiContentPages.Instance.PushPage(wk);
}
qrCode.IsVisible = true;
}
public async void Scan()
{
try
{
var options = new MobileBarcodeScanningOptions
{
AutoRotate = false,
UseFrontCameraIfAvailable = false,
TryHarder = true,
};
var overlay = new ZXingDefaultOverlay
{
TopText = "Please scan QR code",
BottomText = "Align the QR code within the frame"
};
var grid = new Grid();
RowDefinition row1 = new RowDefinition()
{
Height = 100
};
RowDefinition row2 = new RowDefinition();
RowDefinition row3 = new RowDefinition()
{
Height = 150
};
grid.RowDefinitions.Add(row1);
grid.RowDefinitions.Add(row2);
grid.RowDefinitions.Add(row3);
Label edit = new Label()
{
Text = "Đặt mã QR vào khung hình",
FontSize = 24,
HorizontalTextAlignment = TextAlignment.Center,
HorizontalOptions = LayoutOptions.CenterAndExpand,
VerticalTextAlignment = TextAlignment.Center,
VerticalOptions = LayoutOptions.CenterAndExpand,
TextColor = Color.Red,
};
Grid grid1 = new Grid()
{
BackgroundColor = Color.Black, Opacity = 0.4f, VerticalOptions = LayoutOptions.FillAndExpand, HorizontalOptions = LayoutOptions.FillAndExpand
};
grid1.Children.Add(edit);
Grid.SetRow(grid1, 0);
grid.Children.Add(grid1);
var QRScanner = new ZXingScannerPage(options, grid);
await Navigation.PushModalAsync(QRScanner);
QRScanner.OnScanResult += (result) =>
{
// Stop scanning
QRScanner.IsScanning = false;
// Pop the page and show the result
Device.BeginInvokeOnMainThread(async() =>
{
TableOrderViewModel model = new TableOrderViewModel();
try
{
await Navigation.PopModalAsync(false);
if (result.Text.Contains("TABLE"))
{
IRES_Global.GlobalInfo.TableCode = result.Text;
string s = result.Text.Replace("TABLE", "");
var res = await model.OrderTable(int.Parse(s), DateTime.Now);
BtnMenu_Clicked(null, null);
}
else if (result.Text.Contains("ORDER"))
{
string z = result.Text.Replace("ORDER", "");
model.getOrderByCode(z);
}
}
catch
{
await Navigation.PopModalAsync(false);
if (result.Text.Contains("TABLE"))
{
IRES_Global.GlobalInfo.TableCode = result.Text;
string s = result.Text.Replace("TABLE", "");
var res = await model.OrderTable(int.Parse(s), DateTime.Now);
BtnMenu_Clicked(null, null);
}
else if (result.Text.Contains("ORDER"))
{
string z = result.Text.Replace("ORDER", "");
model.getOrderByCode(z);
}
}
});
};
}
catch (Exception ex)
{
// GlobalScript.SeptemberDebugMessages("ERROR", "BtnScanQR_Clicked", "Opening ZXing Failed: " + ex);
Device.BeginInvokeOnMainThread(() => {
// DisplayAlert("Scanned Barcode", ex.ToString(), "OK");
});
}
}