fix: 修复了foreach遍历警告的问题

refact: 移动UdpListener到Utils文件夹

Assets/Utils/UdpListener.cs

@@ -0,0 +1,63 @@
+using System;
+using System.Collections.Generic;
+using System.Net;
+using System.Net.Sockets;
+using Models;
+
+public class UdpListener
+{
+    private UdpClient _client;
+    private IPEndPoint _endPoint;
+    private bool _isReceive;
+    private ReceiveHandler _handlers;
+
+    /// <summary>
+    /// 开始监听指定的端口
+    /// </summary>
+    /// <param name="port">需要监听的端口号</param>
+    public void Connect(int port)
+    {
+        _endPoint = new IPEndPoint(IPAddress.Any, port);
+        _client = new UdpClient(_endPoint);
+        _isReceive = true;
+
+        _client.BeginReceive(ReceiveCallback, null);
+    }
+
+    /// <summary>
+    /// 停止监听
+    /// </summary>
+    public void DisConnect()
+    {
+        _isReceive = false;
+        _client.Close();
+    }
+
+    /// <summary>
+    /// 添加处理收到事件的回调
+    /// </summary>
+    /// <param name="handler"></param>
+    public void AddHandler(ReceiveHandler handler)
+    {
+        _handlers += handler;
+    }
+
+    private void ReceiveCallback(IAsyncResult result)
+    {
+        if (_isReceive)
+        {
+            var bytes = _client.EndReceive(result, ref _endPoint);
+
+            var landmarks = PoseLandmark.ArrayOf(bytes);
+
+            _handlers(landmarks);
+            
+            _client.BeginReceive(ReceiveCallback, null);
+        }
+    }
+}
+
+/// <summary>
+/// 处理收到数据的回调函数
+/// </summary>
+public delegate void ReceiveHandler(List<PoseLandmark> landmarks);

Assets/Utils/UdpListener.cs.meta

@@ -0,0 +1,3 @@
+fileFormatVersion: 2
+guid: 0eea15b46d04475e8de7277ef64e39e0
+timeCreated: 1676014658