二维码生成

从vs Nugets搜索ThoughtWorks.QRCode下载ThoughtWorks.QRCode.dll

    private byte[] CreateQrcode(string code){    string enCodeString = code;QRCodeEncoder qrCodeEncoder = new QRCodeEncoder();qrCodeEncoder.QRCodeEncodeMode = QRCodeEncoder.ENCODE_MODE.BYTE;qrCodeEncoder.QRCodeErrorCorrect = QRCodeEncoder.ERROR_CORRECTION.H;qrCodeEncoder.QRCodeScale = 3;qrCodeEncoder.QRCodeVersion = 8;Bitmap bitmap = qrCodeEncoder.Encode(enCodeString, Encoding.UTF8);//string filename = "QrCode.jpg";//bt.Save(filename);using (MemoryStream stream = new MemoryStream()){bitmap.Save(stream, ImageFormat.Jpeg);byte[] data = new byte[stream.Length];stream.Seek(0, SeekOrigin.Begin);stream.Read(data, 0, Convert.ToInt32(stream.Length));return data;}}

 上述二维码工具不适用与移动端，移动端可使用zxing插件

代码如下

    public void ShowCode(string qrCode){Texture2D qrCodeTex = new Texture2D(256, 256);if (qrCode != null){//二维码写入图片var color32 = CreateQrcode(qrCode, qrCodeTex.width, qrCodeTex.height);qrCodeTex.SetPixels32(color32);qrCodeTex.Apply();qrCodeImage.texture = qrCodeTex;//重新赋值一张图，计算大小,避免白色边框过大//Texture2D modifiedQrcode = new Texture2D(190, 190);//创建目标图片大小//modifiedQrcode.SetPixels(qrCodeTex.GetPixels(32, 32, 190, 190));//modifiedQrcode.Apply();//qrCodeImage.texture = modifiedQrcode;
        }}//定义方法生成二维码private Color32[] CreateQrcode(string textForEncoding, int width, int height){var writer = new BarcodeWriter{Format = BarcodeFormat.QR_CODE,Options = new QrCodeEncodingOptions{Height = height,Width = width}};return writer.Write(textForEncoding);}