C# 跨平台 二维码生成和读取_skbitmap设置utf-8

1.使用的NuGet包有：

ZXing.Net.Bindings.SkiaSharp

SkiaSharp

SkiaSharp.NativeAssets.Linux

2.代码实现：

using ZXing.SkiaSharp;
using ZXing;
using ZXing.QrCode；
using SkiaSharp;
 
public static class QrCode
{
    public enum Type
    { 
        Qr,
        Bar
    }
    //生成二维码  
    public static void GetQrCode(string text, string fileName, int width = 200, int height = 200, int margin = 1, Type type = Type.Qr, bool pureBarcode = true)
    {
      
        QrCodeEncodingOptions options = new QrCodeEncodingOptions()
        {
            CharacterSet = "UTF-8",
            Width = width,
            Height = height,
            Margin = 1,
            PureBarcode = pureBarcode
        };
        BarcodeWriter writer = new();
        if (type == Type.Bar) { writer.Format = ZXing.BarcodeFormat.CODE_128; }//条形码,不能出现中文字
        else { writer.Format = ZXing.BarcodeFormat.QR_CODE; } //二维码 
        writer.Options = options;
        
        var bitmap = writer.Write(text);
        // 将图片编码为字节数组  
        using (var memoryStream = new MemoryStream())
        {
            bitmap.Encode(memoryStream, SKEncodedImageFormat.Png, 100);
            byte[] imageData = memoryStream.ToArray();
            // 将字节数组写入文件  
            File.WriteAllBytes(fileName, imageData);
        }
    }
    public static byte[] GetQrCode(string text,int width=200,int height = 200,int margin=1, Type type=Type.Qr,bool pureBarcode =true)
    {
        QrCodeEncodingOptions options = new QrCodeEncodingOptions()
        {
            CharacterSet = "UTF-8",
            Width = width,
            Height = height,
            Margin = 1,
            PureBarcode = pureBarcode
        };
        BarcodeWriter writer = new();
        if (type == Type.Bar){ writer.Format = ZXing.BarcodeFormat.CODE_128; }//条形码,不能出现中文字
        else { writer.Format = ZXing.BarcodeFormat.QR_CODE; } //二维码 
        writer.Options = options;
        var bitmap = writer.Write(text);
        // 将图片编码为字节数组  
        var memoryStream = new MemoryStream();
        bitmap.Encode(memoryStream, SKEncodedImageFormat.Png, 100);
        return memoryStream.ToArray();
    }
    //识别二维码
    public static string ReadQrCode(string filename)
    {
        string ret = "";
        BarcodeReader reader = new BarcodeReader();
        reader.Options.CharacterSet = "UTF-8";
        Stream stream = File.OpenRead(filename);
        SKBitmap bitmap = SKBitmap.Decode(stream);
        Result result = reader.Decode(bitmap);
        ret = result == null ? "" : result.Text;
        return ret;
    }
}