btnLap.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            LayoutInflater inflater = (LayoutInflater)getBaseContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
            View addView = inflater.inflate(R.layout.row,(ViewGroup)null);
            TextView txtValue = (TextView)addView.findViewById(R.id.textContent);
            txtValue.setText(txtTimer.getText());
            container.addView(addView);
        }
    });

public class LocalService extends Service {
//Binder
private final IBinder mBinder = new LocalBinder();

Button btnStart,btnPause,btnLap;
TextView txtTimer;
Handler customHandler = new Handler();
LinearLayout container;

long startTime=0L,timeInMilliseconds=0L,timeSwapBuff=0L,updateTime=0L;

public class LocalBinder extends Binder {
    LocalService getService() {
        //Return this instance of LocalService so public methods can be called
        return LocalService.this;
    }
}

@Nullable
@Override
public IBinder onBind(Intent intent) {
    return mBinder;
}

Runnable updateTimerThread = new Runnable() {
    @Override
    public void run() {
        timeInMilliseconds = SystemClock.uptimeMillis()-startTime;
        updateTime = timeSwapBuff+timeInMilliseconds;
        int secs=(int)(updateTime/1000);
        int mins=secs/60;
        secs%=60;
        int milliseconds=(int)(updateTime%1000);
        txtTimer.setText(""+mins+":"+String.format("%02d",secs)+":"
                                    +String.format("%03d",milliseconds));
        customHandler.postDelayed(this,0);
    }
};