android实现tcp客户端多线程发送接受数据代码

我可以回答这个问题。以下是一个简单的Android TCP客户端多线程发送接收数据的代码示例：

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class TcpClientThread extends Thread {
    private String serverIp;
    private int serverPort;
    private String message;
    private OnMessageReceived listener;

    public TcpClientThread(String serverIp, int serverPort, String message, OnMessageReceived listener) {
        this.serverIp = serverIp;
        this.serverPort = serverPort;
        this.message = message;
        this.listener = listener;
    }

    @Override
    public void run() {
        try {
            Socket socket = new Socket(serverIp, serverPort);
            PrintWriter out = new PrintWriter(socket.getOutputStream(), true);
            BufferedReader in = new BufferedReader(new InputStreamReader(socket.getInputStream()));

            out.println(message);
            String response = in.readLine();
            listener.onMessageReceived(response);

            socket.close();
        } catch (Exception e) {
            e.printStackTrace();
        }
    }

    public interface OnMessageReceived {
        void onMessageReceived(String message);
    }
}

使用方法：

TcpClientThread clientThread = new TcpClientThread("192.168.1.100", 1234, "Hello, server!", new TcpClientThread.OnMessageReceived() {
    @Override
    public void onMessageReceived(String message) {
        // 处理服务器返回的消息
    }
});
clientThread.start();

这个示例中，我们创建了一个TcpClientThread类，它继承自Thread类，用于在后台线程中执行TCP客户端的连接、发送和接收操作。在构造函数中，我们传入服务器的IP地址、端口号、要发送的消息和一个OnMessageReceived接口，用于处理服务器返回的消息。在run()方法中，我们创建了一个Socket对象，使用PrintWriter和BufferedReader对象进行数据的发送和接收。最后，我们通过listener回调接口将服务器返回的消息传递给主线程进行处理。