Generate QR code with Xamarin.Forms and Zxing

Question

I\'ve seen alot about this online (old posts) but nothing seems to work for me. I\'m trying to generate a QR code out of a string and display it in the app.

Here\'s what

Answer 1

It seems to be a known issue.
Luckily there is a workaround, to set a HeightRequest & WidthRequest, here is a working code example:

ZXingBarcodeImageView GenerateQR(string codeValue)
{
    var qrCode = new ZXingBarcodeImageView
    {
        BarcodeFormat = BarcodeFormat.QR_CODE,
        BarcodeOptions = new QrCodeEncodingOptions
        {
            Height = 350,
            Width = 350
        },
        BarcodeValue = codeValue,
        VerticalOptions = LayoutOptions.CenterAndExpand,
        HorizontalOptions = LayoutOptions.CenterAndExpand
    };
    // Workaround for iOS
    qrCode.WidthRequest = 350;
    qrCode.HeightRequest = 350;
    return qrCode;
}

Answer 2

Add in the app delegate this line ZXing.Net.Mobile.Forms.iOS.Platform.Init();

before LoadApplication(new App());

and ready ...