<service android:name=".TestService"></service>

Intent intent = new Intent(this, TestService.class);

startService(intent);

Intent intent = new Intent(this, TestService.class);

stopService(intent);

 package com.example.testservice;

 import android.app.Service;

 import android.content.Intent;

 import android.os.IBinder;

 public class TestService extends Service {

     @Override

     public IBinder onBind(Intent intent) {

         // TODO Auto-generated method stub

         return null;

     }

     @Override

     public void onCreate() {

         // TODO Auto-generated method stub--1

         System.out.println("onCreate");

         super.onCreate();

     }

     @Override

     @Deprecated

     public void onStart(Intent intent, int startId) {

         // TODO Auto-generated method stub--3

         System.out.println("onStart");

         super.onStart(intent, startId);

     }

     @Override

     public int onStartCommand(Intent intent, int flags, int startId) {

         // TODO Auto-generated method stub--2

         System.out.println("onStartCommand");

         return super.onStartCommand(intent, flags, startId);

     }

     @Override

     public void onDestroy() {

         // TODO Auto-generated method stub--4

         System.out.println("onDestroy");

         super.onDestroy();

     }

 }