Unity二维码生成FairyGUI显示

发表于2018-09-18
评论0 3.6k浏览
本篇来看看如何在Unity中实现二维码生成FairyGUI显示,具体的步骤如下:

1.下载Zxing

2.生成二维码图。 
    /// <summary>
    /// 绘制二维码
    /// </summary>
    /// <param name="s_formatStr">扫码信息</param>
    /// <param name="s_width">码宽</param>
    /// <param name="s_height">码高</param>
    public static Texture2D CreateQRCode(string s_str, int s_width, int s_height)
    {
        //定义Texture2D并且填充
        Texture2D tTexture = new Texture2D(s_width, s_height);
        //绘制相对应的贴图纹理
        tTexture.SetPixels32(GeneQRCode(s_str, s_width, s_height));
        tTexture.Apply();
        return tTexture;
    }
    /// <summary>
    /// 返回对应颜色数组
    /// </summary>
    /// <param name="s_formatStr">扫码信息</param>
    /// <param name="s_width">码宽</param>
    /// <param name="s_height">码高</param>
    static Color32[] GeneQRCode(string s_formatStr, int s_width, int s_height)
    {
        //设置中文编码格式,否则中文不支持
        QrCodeEncodingOptions tOptions = new QrCodeEncodingOptions();
        tOptions.CharacterSet = "UTF-8";
        //设置宽高
        tOptions.Width = s_width;
        tOptions.Height = s_height;
        //设置二维码距离边缘的空白距离
        tOptions.Margin = 3;
        //重置申请写二维码变量类       (参数为:码格式(二维码、条形码...)    编码格式(支持的编码格式)    )
        BarcodeWriter m_barcodeWriter = new BarcodeWriter { Format = BarcodeFormat.QR_CODE, Options = tOptions };
        //将咱们需要隐藏在码后面的信息赋值上
        return m_barcodeWriter.Write(s_formatStr);
    }

3.显示在UI上:
        Texture2D encoded = encoded = QRCodeHelp.CreateQRCode("星 12123 sd", 256, 256);
        panel.m_testImage.texture = new NTexture(encoded);

4.扫描
//二维码识别生成控制类
public class QRCode : MonoBehaviour
{
    #region 扫描二维码
    //摄像头实时显示的画面
    private WebCamTexture m_webCameraTexture;
    //申请一个读取二维码的变量
    private BarcodeReader m_barcodeRender = new BarcodeReader();
    public Action<string> QRsuccess;
    bool isQRing = false;
    public float m_QRRepTime =3f;
    #endregion
    /// <summary>
    /// 扫码
    /// </summary>
    /// <param name="width"></param>
    /// <param name="height"></param>
    /// <param name="QRRepTime"></param>
    /// <returns></returns>
    public WebCamTexture StartQRCode(int width,int height)
    {
        if (isQRing == true)
        {
            Debug.Log("正在扫描=====");
            return null;
        }
        //调用摄像头并将画面显示在屏幕RawImage上
        WebCamDevice[] tDevices = WebCamTexture.devices;    //获取所有摄像头
        if (tDevices.Length <= 0)
        {
            Debug.LogError("没有摄像头!");
            return null;
        }
        Debug.Log("length:" + tDevices.Length);
        string tDeviceName = tDevices[0].name;  //获取第一个摄像头,用第一个摄像头的画面生成图片信息
        m_webCameraTexture = new WebCamTexture(tDeviceName, width, height);//名字,宽,高
        m_webCameraTexture.Play();              //开始实时显示
        isQRing = true;
        InvokeRepeating("CheckQRCode", 1, m_QRRepTime);
        return m_webCameraTexture;
    }
    public void StopQR()
    {
        m_webCameraTexture.Stop();
        m_webCameraTexture = null;
        CancelInvoke();
        isQRing = false;
    }
    /// <summary>
    /// 检索二维码方法
    /// </summary>
    void CheckQRCode()
    {
        //存储摄像头画面信息贴图转换的颜色数组
        Color32[] m_colorData = m_webCameraTexture.GetPixels32();
        //将画面中的二维码信息检索出来
var tResult = m_barcodeRender.Decode(m_colorData, m_webCameraTexture.width, m_webCameraTexture.height);
        if (tResult != null && QRsuccess != null)
        {
            QRsuccess(tResult.Text);
        }
    }
来自:https://blog.csdn.net/u010665359/article/details/79141910

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