如何在 Flutter 中生成二维码并将其显示在 PDF 页面上

问题描述：

我正在构建一个 Flutter 应用程序，其中一个功能包括:

I am Building a Flutter App, and one of the Functionalities includes the following:

1- 生成二维码 - 如果我在屏幕上显示它，这里没有问题.2- 生成 PDF 文件，然后保存并使用本机设备共享共享，这里没问题，直到我尝试在 PDF 页面中包含二维码！

1- Generating Qr codes - no problem here if I am showing it on the screen. 2- Generating PDF file, then saving it and sharing it using native device Sharing, No problem here until I tried to include the Qr code in the PDF page!

我已经坚持了两天并尝试了太多方法来解决这个问题，遗憾的是没有运气.

I have been stuck with this for two days and tried too many approaches to solve this, sadly with no luck.

请提前帮助并感谢大家.

please help and thank you all in advance.

答

您可以使用 pdf 包中的 Barcode 小部件.https://pub.dev/packages/pdf

You can use the Barcode widget from the pdf package. https://pub.dev/packages/pdf

import 'package:pdf/widgets.dart' as pw;

//Barcode widget inside pdf.addPage()
pw.BarcodeWidget(
  color: PdfColor.fromHex("#000000"),
  barcode: pw.Barcode.qrCode(),
  data: "My data",
),

如何在 Flutter 中生成二维码并将其显示在 PDF 页面上

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