Service in Android

 MainActivity.java

package com.example.serviceexample;

import android.os.Bundle;

import android.app.Activity;

import android.content.Intent;

import android.view.Menu;

import android.view.View;

import android.view.View.OnClickListener;

import android.widget.Button;

public class MainActivity extends Activity implements OnClickListener {

            Button b1;

            Button b2;

    @Override

    public void onCreate(Bundle savedInstanceState) {

        super.onCreate(savedInstanceState);

        setContentView(R.layout.activity_main);

       

         b1=(Button)findViewById(R.id.button1);

         b2=(Button)findViewById(R.id.button2);

        b1.setOnClickListener(this);

        b2.setOnClickListener(this);   

    }

    @Override

    public boolean onCreateOptionsMenu(Menu menu) {

        getMenuInflater().inflate(R.menu.activity_main, menu);

        return true;

    }

     public void onClick(View v) {

                        // TODO Auto-generated method stub

                        switch(v.getId())

                        {

                        case R.id.button1:

                                    startService(new Intent(this,ServiceDemo.class));

                                    break;

                        case R.id.button2:

                                    startService(new Intent(this,ServiceDemo.class));

                                   

                        }

            }

}

 ServiceDemo.java

package com.example.serviceexample;

import android.app.Service;

import android.content.Intent;

import android.media.MediaPlayer;

import android.os.IBinder;

public class ServiceDemo extends Service{

     

      MediaPlayer mediaplayer;

      @Override

      public IBinder onBind(Intent arg0) {

            // TODO Auto-generated method stub

            return null;

      }

      @Override

      public void onCreate() {

            // TODO Auto-generated method stub

            super.onCreate();

           

            mediaplayer=MediaPlayer.create(this, R.raw.newsong);

      }

      @Override

      public void onDestroy() {

            // TODO Auto-generated method stub

            super.onDestroy();

            mediaplayer.stop();

      }

      @Override

      public void onStart(Intent intent, int startId) {

            // TODO Auto-generated method stub

            super.onStart(intent, startId);

            mediaplayer.start();

      }

}

Declare manifest permission for service

 <service android:name="ServiceDemo"></service>



you can download source code here

http://www.4shared.com/rar/O39SukJ_/ServiceExample.html?