[android-developers] the current position value is stale in viewpager getCurrentItem method

I have view pager to show the data day by day. And I set the current item position. here is coding..

viewPager = (ViewPager) findViewById(R.id.pager);
pagerAdapter = new DashboardViewAdapter(getSupportFragmentManager(), selectedDate);

daoManager = OpenHelperManager.getHelper(this, DAOManager.class);

viewPager.setAdapter(pagerAdapter);

Date d = pagerAdapter.getDate(365);
Log.i("pageAdapter", d.toString());

viewPager.setCurrentItem(365);
Log.i("viewAdapter", viewPager.getCurrentItem()+"");

viewPager.setOnPageChangeListener(new OnPageChangeListener(){

public void onPageScrollStateChanged(int arg) {

}

public void onPageScrolled(int arg0, float arg1, int arg2) {
// TODO Auto-generated method stub

}

public void onPageSelected(int position) {
Date d = pagerAdapter.getDate(viewPager.getCurrentItem());
monthTitleTextView.setText(formatter.format(d));
selectedDate = d;
Log.i("onPageSelected", selectedDate.toString());
Log.i("onPageSelected", viewPager.getCurrentItem()+"");
}

});

And I have onSaveInstanceState method to store the selectedDate.

@Override
protected void onSaveInstanceState(Bundle outState) {
    super.onSaveInstanceState(outState);
    outState.putSerializable(DAOManager.SELECTED_DATE, selectedDate);
    Log.i("onSaveInstanceState", selectedDate.toString());
}

I run the coding, I got this result.

08-02 13:03:17.868: I/pageAdapter(16770): Fri Aug 02 00:00:00
 GMT+06:30 2013 08-02 13:03:17.868: I/viewAdapter(16770): 365

And I slide for one day. I got this result.

08-02 13:07:17.278: I/onPageSelected(16770): Sat Aug 03 00:00:00
GMT+06:30 2013 08-02 13:07:17.278: I/onPageSelected(16770): 366 

After that I rotate the screen to change orientation. The result is like this.

08-02 13:10:27.558: I/onSaveInstanceState(16770): Sat Aug 03 00:00:00 GMT+06:30 2013
08-02 13:10:27.748: I/dateList (16770): 731 from Fri Aug 03 00:00:00 GMT+06:30 2012-- to Sun Aug 03 00:00:00 GMT+06:30 2014
08-02 13:10:27.748: I/pageAdapter(16770): Sat Aug 03 00:00:00 GMT+06:30 2013
08-02 13:10:27.748: I/viewAdapter(16770): 365
08-02 13:10:27.888: I/onPageSelected(16770): Sun Aug 04 00:00:00 GMT+06:30 2013
08-02 13:10:27.888: I/onPageSelected(16770): 366 

My problem is that after the screen orientation change, the current item position is stale even I set the position in the oncreate method. I would like to know how to refresh the current item position of view pager or is it view pager bug?
Thanks. 

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