<zxing:ZXingScannerView Grid.Row="1" x:Name="_scanView" OnScanResult="Handle_OnScanResult" IsScanning="true" WidthRequest="200" HeightRequest="200">
<zxing:ZXingScannerView.Options>
<zxcore:MobileBarcodeScanningOptions UseFrontCameraIfAvailable="true" />
</zxing:ZXingScannerView.Options>
</zxing:ZXingScannerView>