Unity 摄像头实时扫描二维码

将二维码扫描到的信息 post 到服务器

/****************************************************************************
 * 2021.3 DESKTOP-J98GMVJ
 ****************************************************************************/

using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using QFramework;
using ZXing;
using System.Collections;
using UnityEngine.Networking;

namespace QFramework.Example
{
    public partial class LoginCamRaw : UIComponent
    {

        //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();

        //多久检索一次二维码
        private float m_delayTime = 1f;

        public RawImage m_cameraTexture;

        private void Awake()
        {
        }

        IEnumerator Start()
        {
            //yield return new WaitForSeconds(1f);
            yield return new WaitForEndOfFrame();
            //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
            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, 1920, 1080); //名字,宽,高
            if (m_cameraTexture == null) m_cameraTexture = GetComponent<RawImage>();
            m_cameraTexture.texture = m_webCameraTexture; //赋值图片信息
            m_webCameraTexture.Play(); //开始实时显示
            InvokeRepeating("CheckQRCode", 0, m_delayTime);
        }

        /// <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)
            {
                Debug.Log(tResult.Text);

                // 发送到服务器进行比对
                PostToServer(tResult.Text);
            }
        }

        public string m_sServerAddress => "http://127.0.0.1/";
        public string m_sPostMsg => "https://www.shengyinyouju.cn/cBBQE6uuDk4g=";
     

        // 外部调用 post 到服务器方法
        public void PostToServer(string m_sPostMsg)
        {
            StartCoroutine(Post(m_sPostMsg));
        }

        IEnumerator Post(string m_sPostMsg)
        {
            WWWForm form = new WWWForm();
            //键值对
            form.AddField("url", m_sPostMsg);

            UnityWebRequest webRequest = UnityWebRequest.Post(m_sServerAddress, form);

            yield return webRequest.SendWebRequest();
            //异常处理，很多博文用了error!=null这是错误的，请看下文其他属性部分
            if (webRequest.isHttpError || webRequest.isNetworkError)
                Debug.Log(webRequest.error);
            else
            {
                Debug.Log(webRequest.downloadHandler.text);
                if(webRequest.downloadHandler.text == "1")
                {
                    // 识别到正确的二维码 打开开始界面
                    UIKit.ClosePanel<UIQRCodeLoginPanel>();
                    UIKit.OpenPanel<UIStartPanel>();
                }
            }
        }


        protected override void OnBeforeDestroy()
        {
            StopAllCoroutines();
            CancelInvoke();
            if (m_webCameraTexture.isPlaying)
            {
                //Debug.LogError("关闭摄像头!");
                m_webCameraTexture.Stop();
            }
        }
    }
}

下面代码出处: https://blog.csdn.net/FransicZhang/article/details/94917700 

using UnityEngine;
using UnityEngine.UI;
using ZXing;
using ZXing.QrCode;

public class QRCode : MonoBehaviour
{
    //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();

    //多久检索一次二维码
    private float m_delayTime = 1f;

    public RawImage m_cameraTexture;

    void Start()
    {
        //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
        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, 1280, 720); //名字,宽,高
        if (m_cameraTexture == null) m_cameraTexture = GetComponent<RawImage>();
        m_cameraTexture.texture = m_webCameraTexture; //赋值图片信息
        m_webCameraTexture.Play(); //开始实时显示
        InvokeRepeating("CheckQRCode", 0, m_delayTime);
    }

    /// <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)
        {
            Debug.Log(tResult.Text);
        }
    }
}