unityZXing二维码的生成与扫描

1. using System.Collections;
2.  
   using System.Collections.Generic;
3.  
   using UnityEngine;
4.  
   using ZXing;
5.  
   using UnityEngine.UI;
6.  
   /// <summary>
7.  
   /// 二维码扫描识别功能
8.  
   /// </summary>
9.  
   public class TestQRCodeScanning : MonoBehaviour {
10.  
     
11.  
    [Header("摄像机检测界面")]
12.  
    public RawImage cameraTexture;//摄像机映射显示区域
13.  
     
14.  
    private WebCamTexture webCamTexture;//摄像机映射纹理
15.  
    public Text text;//用来显示扫描信息
16.  
    //二维码识别类
17.  
    BarcodeReader barcodeReader;//库文件的对象（二维码信息保存的地方）
18.  
     
19.  
    /// <summary>
20.  
    /// 开启摄像机和准备工作
21.  
    /// </summary>
22.  
    void DeviceInit()
23.  
    {
24.  
     
25.  
     
26.  
    //1、获取所有摄像机硬件
27.  
    WebCamDevice[] devices = WebCamTexture.devices;
28.  
    //2、获取第一个摄像机硬件的名称
29.  
    string deviceName = devices[0].name;//手机后置摄像机
30.  
    //3、创建实例化一个摄像机显示区域
31.  
    webCamTexture = new WebCamTexture(deviceName, 400, 300);
32.  
    //4、显示的图片信息
33.  
    cameraTexture.texture = webCamTexture;
34.  
    //5、打开摄像机运行识别
35.  
    webCamTexture.Play();
36.  
     
37.  
    //6、实例化识别二维码信息存储对象
38.  
    barcodeReader = new BarcodeReader();
39.  
    }
40.  
     
41.  
    Color32[] data;//二维码图片信息以像素点颜色信息数组存放
42.  
     
43.  
    /// <summary>
44.  
    /// 识别摄像机图片中的二维码信息
45.  
    /// 打印二维码识别到的信息
46.  
    /// </summary>
47.  
    void ScanQRCode()
48.  
    {
49.  
    //7、获取摄像机画面的像素颜色数组信息
50.  
    data = webCamTexture.GetPixels32();
51.  
    //8、获取图片中的二维码信息
52.  
    Result result = barcodeReader.Decode(data,webCamTexture.width,webCamTexture.height);
53.  
    //如果获取到二维码信息了，打印出来
54.  
    if (result!=null)
55.  
    {
56.  
    Debug.Log(result.Text);//===》==》===》 这是从二维码识别出来的信息
57.  
    text.text = result.Text;//显示扫描信息
58.  
     
59.  
    //扫描成功之后的处理
60.  
    IsScanning = false;
61.  
    webCamTexture.Stop();
62.  
    }
63.  
    }
64.  
     
65.  
     
66.  
    /// <summary>
67.  
    /// Start 初始化函数
68.  
    /// </summary>
69.  
    private void Start()
70.  
    {
71.  
    scanningButton.onClick.AddListener(ScanningButtonClick);
72.  
    }
73.  
     
74.  
     
75.  
    bool IsScanning = false;
76.  
    float interval = 3;//扫描识别时间间隔
77.  
    [SerializeField] Button scanningButton;
78.  
    void ScanningButtonClick()
79.  
    {
80.  
    DeviceInit();
81.  
    IsScanning = true;
82.  
    }
83.  
     
84.  
    private void Update()
85.  
    {
86.  
    if (IsScanning)
87.  
    {
88.  
    //每隔一段时间进行一次识别二维码信息
89.  
    interval += Time.deltaTime;
90.  
    if (interval>=3)
91.  
    {
92.  
    interval = 0;
93.  
    ScanQRCode();//开始扫描
94.  
    }
95.  
    }
96.  
    }
97.  
    }

ZXing：https://archive.codeplex.com/?p=zxingnet

下载之后把zxing.unity.dll拷贝到Unity的Plugins文件夹下，

zxing.unity.dll下载之后的位置找到UnityDemo/Assets下

1.  
   using System.Collections;
2.  
   using System.Collections.Generic;
3.  
   using UnityEngine;
4.  
   using UnityEngine.UI;
5.  
   using ZXing;
6.  
   //二维码的生成
7.  
   public class TestQRCodeDraw : MonoBehaviour {
8.  
    
9.  
   [Header("绘制好的二维码显示界面")]
10.  
    public RawImage QRCode;
11.  
    //二维码绘制类
12.  
    BarcodeWriter barcodeWriter;
13.  
    [SerializeField] Button drawbutton;
14.  
    /// <summary>
15.  
    /// 将制定字符串信息转换成二维码图片信息
16.  
    /// </summary>
17.  
    /// <param name="formatStr">要生产二维码的字符串信息</param>
18.  
    /// <param name="width">二维码的宽度</param>
19.  
    /// <param name="height">二维码的高度</param>
20.  
    /// <returns>返回二维码图片的颜色数组信息</returns>
21.  
    Color32[] GeneQRCode(string formatStr,int width,int height)
22.  
    {
23.  
    //绘制二维码前进行一些设置
24.  
    ZXing.QrCode.QrCodeEncodingOptions options =
25.  
    new ZXing.QrCode.QrCodeEncodingOptions();
26.  
    //设置字符串转换格式，确保字符串信息保持正确
27.  
    options.CharacterSet = "UTF-8";
28.  
    //设置绘制区域的宽度和高度的像素值
29.  
    options.Width = width;
30.  
    options.Height = height;
31.  
    //设置二维码边缘留白宽度（值越大留白宽度大，二维码就减小）
32.  
    options.Margin = 1;
33.  
     
34.  
    //实例化字符串绘制二维码工具
35.  
    barcodeWriter = new BarcodeWriter {Format=BarcodeFormat.QR_CODE,Options=options };
36.  
    //进行二维码绘制并进行返回图片的颜色数组信息
37.  
    return barcodeWriter.Write(formatStr);https://www.cnblogs.com/p199543H/articles/12977982.html
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