Android-Socket transmission GPRS network

Android-Socket transmission GPRS network

 

Use UDP protocol and Socket debugging tools for testing.

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;@Overridepublic 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{@Overridepublic 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();}}}}

Activity_socket.xml:

 

 

 

The Socket debugging tool creates a UDP Server listening port 1234 with the local IP address 115.238.249.92. Install and run apk, and press Send to receive data from the server.

 

 

 

Note: add the following in AndroidManifest. xml: