Android-Socket傳輸 GPRS網絡

用UDP協議與Socket調試工具進行測試。

SocketActivity.java：

package com.example.socket;

import java.net.DatagramPacket;
import java.net.DatagramSocket;
import java.net.InetAddress;
import android.os.Bundle;
import android.app.Activity;
import android.view.View;
import android.widget.Button;
import android.view.View.OnClickListener;

public class SocketActivity extends Activity {

	private Button startButton = null;
	@Override
	public void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_socket);
		startButton = (Button)findViewById(R.id.startListener);
		startButton.setOnClickListener(new StartSocketListener());
	}
	
	class StartSocketListener implements OnClickListener{
		
		@Override
		public void onClick(View v){
			new ServerThread().start();
		}
	}
	
	class ServerThread extends Thread{
		public void run(){
			try{
				DatagramSocket socket = new DatagramSocket(1234);
				InetAddress serverAddress = InetAddress.getByName(115.238.249.92);
				String str = hello;
				byte data[] = str.getBytes();
				DatagramPacket packet = new DatagramPacket(data,data.length,serverAddress,1234);
				socket.send(packet);
			}catch (Exception e)
			{
				e.printStackTrace();
			}	
		}
	}
}

Socket調試工具創建UDP Server監聽1234端口，本機IP為115.238.249.92。安裝運行apk，按下Send按鈕，服務器端收到數據。

注意在AndroidManifest.xml中添加：