public ReceivePage(BottomTabbedPage tabbedContext)
{
InitializeComponent();
BindingContext =
ViewModel =
new ReceiveViewModel(this, tabbedContext);
var qrHeight = (int)(App.ScreenHeight * 0.45);
Device.BeginInvokeOnMainThread(() =>
{
var qrImageView = new ZXingBarcodeImageView
{
BarcodeFormat = BarcodeFormat.QR_CODE,
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand,
BarcodeOptions = new EncodingOptions
{
Width = qrHeight,
Height = qrHeight
}
};
qrImageView.SetBinding(
ZXingBarcodeImageView.BarcodeValueProperty,
new Binding(nameof(ViewModel.RequestString)));
QrWrapper.HeightRequest = qrHeight;
QrWrapper.Children.Add(qrImageView);
});
}
public SendPage(BottomTabbedPage tabbedContext)
{
InitializeComponent();
BindingContext =
SendViewModel =
new SendViewModel(this, tabbedContext);
}
public ScanPage(BottomTabbedPage tabbedContext)
{
InitializeComponent();
_tabbedContext = tabbedContext;
zxing = new ZXingScannerView
{
HorizontalOptions = LayoutOptions.FillAndExpand,
VerticalOptions = LayoutOptions.FillAndExpand
};
zxing.IsAnalyzing = true;
zxing.IsScanning = true;
zxing.Options.PossibleFormats.Add(BarcodeFormat.QR_CODE);
zxing.Options.PossibleFormats.Add(BarcodeFormat.DATA_MATRIX);
zxing.Options.PossibleFormats.Add(BarcodeFormat.EAN_13);
zxing.AutoFocus();
zxing.OnScanResult += OnScan;
overlay = new ZXingDefaultOverlay
{
TopText = "Hold your phone up to the QR code",
BottomText = "Scanning will happen automatically",
ShowFlashButton = zxing.HasTorch,
};
overlay.FlashButtonClicked += (sender, e) => {
zxing.IsTorchOn = !zxing.IsTorchOn;
};
var grid = new Grid
{
VerticalOptions = LayoutOptions.FillAndExpand,
HorizontalOptions = LayoutOptions.FillAndExpand,
};
grid.Children.Add(zxing);
grid.Children.Add(overlay);
Content = grid;
_message = DependencyService.Get <IMessage>();
}