Android : Android create handler inside thread into Service

i'm writing simple android service and i want to use such as Toast or Notification but i get this error:

 FATAL EXCEPTION: Thread-17116
    java.lang.RuntimeException: Can't create handler inside thread that has not called Looper.prepare()

i can not use runOnUiThread . my service does not know that. for example i try to use that with : this, getBaseContect(), getApplication, mContext for .runOnUiThread(new Runnable() {}

i get problem and i can not resolve problem.

this is my code:

public class TsmsService extends Service {

    private Timer smsThread;
    private DatabaseHandler db;
    private SQLiteDatabase dbHelper;

    @Override
    public int onStartCommand(Intent intent, int flags, int startId) {
        smsThread = new Timer();
        GetSMSThread getSMSThread = new GetSMSThread(getBaseContext());
        smsThread.scheduleAtFixedRate(getSMSThread, 0, 1000); //(timertask,delay,period)
        return super.onStartCommand(intent, flags, startId);
    }

    public class GetSMSThread extends TimerTask {
        private Context mContext;

        public GetSMSThread(Context context) {
            mContext = context;
        }

        @Override
        public void run() {

            this.runOnUiThread(new  Runnable() {
                public  void  run() {
                    Toast.makeText(getApplication() , "Service is Running ... " , Toast.LENGTH_SHORT).show();
                }
            });

        }
    }
}