unity之二维码

首先下载插件ZXing，链接在下面。解压后把unity文件夹的文件导入unity中。

注意：二维码生成目前只能生成256*256的，不然会报所引超出界限错误。

链接：https://pan.baidu.com/s/1_En2Tc2kdiDw8fvvzJZKYQ
提取码：vl5k

代码如下：

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using ZXing;
using ZXing.QrCode;

public class QRCodeFactory
{
    #region 单例
    private static QRCodeFactory instance;

    public static QRCodeFactory Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new QRCodeFactory();
            }
            return instance;
        }
    }

    #endregion

    /// <summary>
    /// 直接返回图片
    /// </summary>
    /// <param name="content"></param>
    /// <param name="margin"></param>
    /// <param name="width"></param>
    /// <param name="height"></param>
    /// <returns></returns>
    public Texture2D GetTexture2D(string content, int margin = 0, int width = 256, int height = 256)
    {
        if (string.IsNullOrEmpty(content))
        {
            Debug.Log("错误！数据不能为空！");
            return null;
        }
        Texture2D t2d = new Texture2D(width, height);
        t2d.SetPixels32(GetQRcode(content, margin, width, height));
        t2d.Apply();
        return t2d;
    }
    /// <summary>
    /// 只返回生成二维码的颜色数据
    /// </summary>
    /// <param name="content"></param>
    /// <param name="margin"></param>
    /// <param name="width"></param>
    /// <param name="height"></param>
    /// <returns></returns>
    public Color32[] GetQRcode(string content, int margin = 0, int width = 256, int height = 256)
    {
        if (string.IsNullOrEmpty(content))
        {
            Debug.Log("错误！数据不能为空！");
            return null;
        }

        BarcodeWriter bw = new BarcodeWriter  //设置二维码变量类
        {
            Format = BarcodeFormat.QR_CODE,  //设置二维码格式
            Options = new QrCodeEncodingOptions //设置编码格式
            {
                CharacterSet = "UTF-8",// 设置中文模式
                Height = height, //设置宽高
                Width = width,
                Margin = margin  //设置二维码的边距
            }
        };
        return bw.Write(content);
    }
    public Result CheckQRCode(Texture2D t2d)
    {
        if (t2d == null)
        {
            Debug.Log("错误！图片为空！");
            return null;
        }
        Color32[] colorDatas = t2d.GetPixels32();
        BarcodeReader barcodeRender = new BarcodeReader();
        return barcodeRender.Decode(colorDatas, t2d.width, t2d.height);//将画面中的二维码信息检索出来
    }
}

using System.Collections;using System.Collections.Generic;using UnityEngine;using ZXing;using ZXing.QrCode;
public class QRCodeFactory{    #region 单例    private static QRCodeFactory instance;
    public static QRCodeFactory Instance    {        get        {            if (instance == null)            {                instance = new QRCodeFactory();            }            return instance;        }    }
    #endregion
    /// <summary>    /// 直接返回图片    /// </summary>    /// <param name="content"></param>    /// <param name="margin"></param>    /// <param name="width"></param>    /// <param name="height"></param>    /// <returns></returns>    public Texture2D GetTexture2D(string content, int margin = 0, int width = 256, int height = 256)    {        if (content == "")        {            Debug.Log("错误！数据不能为空字符串！");            return null;        }        Texture2D t2d = new Texture2D(width, height);        t2d.SetPixels32(GetQRcode(content, margin, width, height));        t2d.Apply();        return t2d;    }    /// <summary>    /// 只返回生成二维码的颜色数据    /// </summary>    /// <param name="content"></param>    /// <param name="margin"></param>    /// <param name="width"></param>    /// <param name="height"></param>    /// <returns></returns>    public Color32[] GetQRcode(string content, int margin = 0, int width = 256, int height = 256)    {        if (content == "")        {            Debug.Log("错误！数据不能为空字符串！");            return null;        }
        BarcodeWriter bw = new BarcodeWriter  //设置二维码变量类        {            Format = BarcodeFormat.QR_CODE,  //设置二维码格式            Options = new QrCodeEncodingOptions //设置编码格式            {                CharacterSet = "UTF-8",// 设置中文模式                Height = height, //设置宽高                Width = width,                Margin = margin  //设置二维码的边距            }        };
        return bw.Write(content);    }    public Result CheckQRCode(Texture2D t2d)    {        if (t2d == null)        {            Debug.Log("错误！图片为空！");            return null;        }        Color32[] colorDatas = t2d.GetPixels32();        BarcodeReader barcodeRender = new BarcodeReader();        return barcodeRender.Decode(colorDatas, t2d.width, t2d.height);//将画面中的二维码信息检索出来    }}