Code related to the question here: http://stackoverflow.com/questions/19393076/how-to-properly-handle-screen-rotation-with-a-viewpager-and-nested-fragments

ViewPagerFragment.java

public class ViewPagerFragment extends Fragment {
    private MyTabsAdapter mAdapter;
    private static final int NB_TABS = 2; // to change with what you need
    private static final String[] TAB_TITLES = new String[NB_TABS];
    
    public static ViewPagerFragment newInstance(final Bundle args) {
        final ViewPagerFragment f = new ViewPagerFragment();
        f.setArguments(args);
        return f;
    }
    
    private static class MyTabsAdapter extends FragmentPagerAdapter {
        Fragment[] mFragments = new Fragment[NB_TABS];
        Bundle args;
        
        public MyTabsAdapter(final FragmentManager fm, final Bundle args) {
            super(fm);
            this.args = args;
            Bundle hack = new Bundle();
            try {
                for (int i = 0; i < mFragments.length; i++) {
                    hack.putInt("hack", i);
                    mFragments[i] = fm.getFragment(hack, "hack");
                }
            } catch (Exception e) {
                // No need to fail here
            }
        }
        
        @Override
        public int getCount() {
            return NB_TABS;
        }
        @Override
        public CharSequence getPageTitle(final int position) {
            return TAB_TITLES[position].toUpperCase(Locale.getDefault());
        }
        
        /**
         * @return The {@code Fragment} at that position
         */
        public Fragment getFragment(final int position) {
            return mFragments[position];
        }
        
        @Override
        public Fragment getItem(final int position) {
            if (position == 0) {
                mFragments[position] = YourFirstFragment.newInstance(args);
            } else {
                mFragments[position] = YourSecondFragment.newInstance(args);
            }
            // to change with your fragments
            return mFragments[position];
        }
    }
    
    @Override
    public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) {
        final View v = inflater.inflate(R.layout.frag_viewpager, container, false);
        
        int i = 0;
        TAB_TITLES[i++] = getString(R.string.issue_overview_title);
        TAB_TITLES[i++] = getString(R.string.issue_journal_title);
        // set the titles here
        
        final Bundle args = new Bundle();
        if (getArguments() != null) {
            args.putAll(getArguments());
        }
        
        if (savedInstanceState == null) {
            // create your stuff when the fragments are created from scratch
        } else {
            // re-use anything from the previous instance
        }
        
        mAdapter = new MyTabsAdapter(getChildFragmentManager(), args);
        final ViewPager pager = (ViewPager) v.findViewById(R.id.issue_pager);
        pager.setAdapter(mAdapter);
        
        return v;
    }
    
    @Override
    public void onSaveInstanceState(final Bundle outState) {
        super.onSaveInstanceState(outState);
        // ...
    }
}