Unity 简易聊天室(基于TCP)(2)

客户端用Unity开发,主要就是搭建一下聊天室的UI界面:输入框,聊天内容显示框,发送按钮

 

灰色背景的就是Message,也就是聊天内容的显示框,是一个Text类型,这里创建UI方面就不多讲了

 

 在Canvas下挂一个ChatManager脚本

 

using System;
using UnityEngine;
using System.Net.Sockets;
using System.Net;
using UnityEngine.UI;
using System.Text;

public class ChatManager : MonoBehaviour {
  private Socket clientSocket;

  private Button btn;
  private InputField inputField;
  private Text showMessage;

  private byte[] data = new byte[1024];

  private string msg = "";

  void Start()
  {

    //创建一个socket,绑定和服务器一样的ip和端口号,然后执行Connect就可以连接上服务器了(服务器已经运行)
    clientSocket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
    clientSocket.Connect(new IPEndPoint(IPAddress.Parse("127.0.0.1"), 6688));

    btn = transform.Find("Button").GetComponent<Button>();
    btn.onClick.AddListener(OnSendClick);

    inputField = transform.Find("InputField").GetComponent<InputField>();
    showMessage = transform.Find("BG/Message").GetComponent<Text>();

    ClientStart();
  }

  void Update()
  {

    if(msg!=null && msg != "")
    {
      showMessage.text += msg+"\n";回调函数不能调用Unity的组件、UI;所以只能在Update里用,而不能直接在ReceiveCallBack(回调函数不属于Unity的主线程)
      msg = "";
    }
  }

 

  private void OnSendClick()  //绑定到发送按钮的方法
  {
    if (inputField.text != "")
    {
      byte[] databytes = Encoding.UTF8.GetBytes(inputField.text);
      clientSocket.Send(databytes);
      inputField.text = "";
    }
  }


  private void ClientStart()  //开始接收从服务器发来的消息
  {
    clientSocket.BeginReceive(data, 0, 1024,SocketFlags.None, ReceiveCallBack, null);
  }

  private void ReceiveCallBack(IAsyncResult ar)
  {
    try
    {  
      if (clientSocket.Connected == false)
      {
        clientSocket.Close();
        return;
      }
      int len = clientSocket.EndReceive(ar);
      string message = Encoding.UTF8.GetString(data, 0, len);
      msg = message;
      ClientStart();  //重复接收从服务器发来的信息
    }
    catch(Exception e)
    {
      Debug.Log("ReceiveCallBack:" + e);
    }
  }

 

  void OnDestroy()
  {
    clientSocket.Close();
  }

}

 

posted @ 2018-12-05 18:08  darkif  阅读(2117)  评论(0编辑  收藏  举报