SectionsPagerAdapter

public class SectionsPagerAdapter extends FragmentStatePagerAdapter {

        private FragmentManager fm;
        private ArrayList<Fragment> fragments = new ArrayList<Fragment>();
        private LoadingFragment loadingFragment = new LoadingFragment();

        public SectionsPagerAdapter(FragmentManager fm) {
            super(fm);
            fragments.add(loadingFragment);
            this.fm = fm;

        }

        public void addFragment(Fragment fragment) {


            fragments.add(fragment);
            if (fragments.contains(loadingFragment))
                fragments.remove(loadingFragment);

            notifyDataSetChanged();
        }

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

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

        @Override
        public int getCount() {

            return fragments.size();
        }


    }