اجرای تابعی از برنامه در حالی که برنامه بسته است

 package ir.smartcod.free;

import android.app.Activity;
import android.content.Intent;
import android.os.Bundle;


public class FreeActivity extends Activity {

 /** Called when the activity is first created. */
 @Override
 public void onCreate(Bundle savedInstanceState) {
 super.onCreate(savedInstanceState);
 setContentView(R.layout.main);
 //----------------------use myservice------------
 Intent intent = new Intent(this, Myservice.class);
 startService(intent);
 //--------------------end use myservice------------
 }
}

 package ir.smartcod.free;

import android.app.Service;
import android.content.Intent;
import android.os.IBinder;
import android.widget.Toast;


public class Myservice extends Service {

 //---------------------------thread--------------------
 //---------------------------tread functions----------------
 public void startthread() {
 Thread thread = new Thread(new Runnable() {

 @Override
 public void run() {
 while (true) {// for repeating and be alive 
 // TODO Auto-generated method stub
 try {

 Toast.makeText(getApplicationContext(), "hiii my service ", Toast.LENGTH_SHORT).show();
 // TextView tx = (TextView) findViewById(R.id.tx);
 // tx.setText("hello thread is working");
 Thread.sleep(1000);// esterahat konad va harv 1000 bar yek bar khabar dahad
 }
 catch (InterruptedException e) {
 // TODO Auto-generated catch block
 e.printStackTrace();
 }

 }// while (true) 
 }
 });

 thread.start();
 }// end of void startthread(){


 //-----------------------------end thread-----------------

 @Override
 public int onStartCommand(Intent intent, int flags, int startId) {
 // TODO Auto-generated method stub
 //----------------------------------mycode-----------

 startthread();

 //---------------------------------end-mycode----------------
 return super.onStartCommand(intent, flags, startId);

 }


 @Override
 public IBinder onBind(Intent arg0) {
 // TODO Auto-generated method stub
 return null;
 }

}