For services started

MainActivity.java

package com.techblogon.serviceexample;

import android.os.Bundle;
import android.app.Activity;
import android.content.Intent;
import android.view.Menu;
import android.view.View;

public class MainActivity extends Activity {

@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
}

//start the service
public void onClickStartServie(View V)
{
//start the service from here //MyService is your service class name
startService(new Intent(this, MyService.class));
}
//Stop the started service
public void onClickStopService(View V)
{
//Stop the running service from here//MyService is your service class name
//Service will only stop if it is already running.
stopService(new Intent(this, MyService.class));
}

@Override
public boolean onCreateOptionsMenu(Menu menu) {
// Inflate the menu; this adds items to the action bar if it is present.
getMenuInflater().inflate(R.menu.activity_main, menu);
return true;
}

}