FragmentPagerAdapter update title dynamically

Question

I have a ViewPager with FragmentPagerAdapter, which has 3 Fragments. Now, I have a number of items as part of the title of the fragment:

So user can add or remove those items, and title should update accordingly. However, this title seems static.

How can one recall this method to update FragmentPagerAdapter's titles?

@Override
    public CharSequence getPageTitle(int position) {
        switch (position) {
            case 0: return items + " (" + notFoundItems + ")";
            case 1: return found;
            case 2: return review;
        }
        return "";
    }

I found a couple of similar questions on SO, but I need to update title, not only the fragment itself.

Answer 1

Finally, I solved it by simply re-setting the pager.

private OrdersTabsAdapter tabsAdapter;
@InjectView(R.id.tabs_orders) SlidingTabLayout ordersTabs;
@InjectView(R.id.pager) ViewPager pager;

public void update() {
  tabsAdapter.updateFragments(productId, status);
  ordersTabs.setViewPager(pager); //this helped with the titles
}