如何修复使用 zxing 2.1 生成的不清楚的二维码图像? [英] how to fix an unclear qr code image generated using zxing 2.1?

问题描述

我使用zxing 2.1库生成了二维码图片，但是图片非常模糊不清.我可能哪里出错了?

I have generated a QR code image using zxing 2.1 library, but the image is very blurry and unclear. Where might I be possibly going wrong?

推荐答案

生成发生在较低级别，然后根据宽度和高度请求进行缩放.您可以请求以更高的宽度和高度生成.

The generation happens at a lower level and then is scaled with a width and height request. You can request generation at a higher width and height.

ZXing 在您可以设置的查看器中公开 BarcodeOptions.

ZXing exposes BarcodeOptions in the viewer that you can set.

在您的模型中，您可以这样做:

In your model you can do this:

public EncodingOptions BarcodeOptions => new EncodingOptions() { Height = 100, Width = 100, PureBarcode = true };

然后在您的 XAML 中它可能如下所示:

Then in your XAML it might look like this:

<z:ZXingBarcodeImageView BarcodeFormat="QR_CODE" HeightRequest="100" WidthRequest="100" Margin="10" BarcodeValue="a long url to a thing that accepts a zing to another thing"
                         BarcodeOptions="{Binding BarcodeOptions}" >

如果更改 XAML 上的宽度和高度，请记住更新 EncodingOptions 的宽度和高度.

Remember to update the width and height of your EncodingOptions if you change the width and height on your XAML.

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