Scanning for Front camera not working

[mobileappsdeveloper01]

Hello Kind Developers

Please help on the below issue,
Unable to scan with fixed front camera view in Android. it always opening the back camera. please check the below code. Could you please suggest the workaround for this. without this we can't move forward on it. We have tried all versions of stable and beta version in library but no luck.

            var scanner = new ZXing.Mobile.MobileBarcodeScanner();
            scanner.UseCustomOverlay = false;

            var options = new ZXing.Mobile.MobileBarcodeScanningOptions()
            {
                AutoRotate = true,
                UseNativeScanning = true,
                TryHarder = true,
                TryInverted = true,
                UseFrontCameraIfAvailable = true,
            };
         var result = await scanner.Scan(options);

Thanks for support in advance