如何导入用于登录Xamarin.Forms的二维码

<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             x:Class="YourNamespace.QRCodePage">
    <StackLayout>
        <Image x:Name="QRCodeImage" />
    </StackLayout>
</ContentPage>

using Xamarin.Forms;
using ZXing.Net.Mobile.Forms;

namespace YourNamespace
{
    public partial class QRCodePage : ContentPage
    {
        public QRCodePage()
        {
            InitializeComponent();

            // 生成二维码
            var barcodeWriter = new ZXing.Mobile.BarcodeWriter
            {
                Format = ZXing.BarcodeFormat.QR_CODE,
                Options = new ZXing.Common.EncodingOptions
                {
                    Width = 300,
                    Height = 300
                }
            };

            var qrCode = barcodeWriter.Write("Your login data"); // 替换为实际的登录数据

            // 将二维码显示在Image控件中
            QRCodeImage.Source = ImageSource.FromStream(() =>
            {
                var stream = new MemoryStream();
                qrCode.Save(stream, ImageFormat.Png);
                stream.Seek(0, SeekOrigin.Begin);
                return stream;
            });
        }
    }
}

// 导航到QRCodePage页面
Navigation.PushAsync(new QRCodePage());