title: Reset ViewPager's current item position inside Fragment
body: <p>I have one parent ViewPager in which I passed FragmentStatePagerAdapter. Now there is another child ViewPager inside Fragment which is in parent ViewPager. So when I try to notifyDataSetChanged of parent ViewPager's adapter, all fragments are recreated but child ViewPager's current item position still remain same as before recreating fragment's child ViewPager's position.</p>
  
  <p>So, how can I reset child ViewPager's current item position?</p>