private class ScreenSlidePagerAdapter extends FragmentStatePagerAdapter {

    public ScreenSlidePagerAdapter(FragmentManager manager, ArrayList<Fragment> fmList) {
        super(manager);
        pagerFragmentList = fmList;
    }

    @Override
    public Fragment getItem(int position) {
        return pagerFragmentList.get(position);
    }

    @Override
    public int getItemPosition(Object object) {
        return POSITION_NONE;
    }

    @Override
    public int getCount() {
        return pagerFragmentList.size();
    }
}

pagerFragmentList.clear();
pagerFragmentList = newFragmentList;
mPagerAdapter.notifyDataSetChanged();
mPager.setCurrentItem(0);