ViewPager Fragments Disappear

Question

I use DrawerLayout with ViewPagerIndicator , however the latter will not work correctly with DrawerLayout . As soon as I open the application, the viewpager displays correctly, but as soon as I change the fragments in DrawerLayout, the fragments of the ViewPager disappear.

Here is my FragmentManager:

 FragmentManager fragmentManager = getSupportFragmentManager(); switch (arg2) { case 0: contentFragment = new Lebanon(); break; } fragmentManager.beginTransaction() .replace(R.id.content_frame, contentFragment).commit(); 

The second fragment and the fourth in the ViewPager are, and they did not disappear, while the first, third and fifth disappear. What is wrong in my code?

Here is my snippet:

 @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { viewta = inflater.inflate(R.layout.simple_tabs, container, false); SamsungLB = com.androidarabia.lebanon.SamsungLB.newInstance(); HTCLB = com.androidarabia.lebanon.HTCLB.newInstance(); LGLB = com.androidarabia.lebanon.LGLB.newInstance(); SonyLB = com.androidarabia.lebanon.SonyLB.newInstance(); SearchLB = com.androidarabia.lebanon.SearchLB.newInstance(); this.getSherlockActivity().getSupportActionBar() .setHomeButtonEnabled(true); prefs = this.getSherlockActivity().getSharedPreferences(prefName, Context.MODE_PRIVATE); adapter = new GoogleMusicAdapter(this.getSherlockActivity() .getSupportFragmentManager()); pager = (ViewPager) viewta.findViewById(R.id.pager); pager.setPageTransformer(true, new ZoomOutPageTransformer()); indicator = (TabPageIndicator) viewta.findViewById(R.id.indicator); pager.setCurrentItem(0); pager.setAdapter(adapter); pager.setOffscreenPageLimit(4); indicator.setViewPager(pager); return viewta; } private void addtabs(ViewPager pager2) { // TODO Auto-generated method stub pager2.setAdapter(adapter); pager2.setOffscreenPageLimit(4); indicator.setViewPager(pager); } class GoogleMusicAdapter extends FragmentStatePagerAdapter { public GoogleMusicAdapter(FragmentManager fm) { super(fm); notifyDataSetChanged(); } @Override public Fragment getItem(int position) { switch (position) { case 0: return SamsungLB; case 1: return HTCLB; case 2: return LGLB; case 3: return SonyLB; case 4: return SearchLB; } notifyDataSetChanged(); return TestFragment.newInstance(CONTENT[position % CONTENT.length]); } @Override public CharSequence getPageTitle(int position) { return CONTENT[position % CONTENT.length].toUpperCase(); } @Override public int getCount() { return CONTENT.length; } } 

Answer 1

Use getChildFragmentManager() using GoogleMusicAdapter :

 adapter = new GoogleMusicAdapter(getChildFragmentManager()); 

because the fragments used by ViewPager are nested fragments.