Fragment onResume doesn't get called after Fragment is being detached and then re-attached

I'm trying to get the handle on all the new ActionBar and Fragments API. I have an main activity, and I want it to manage two different tabs. I'm using the ActionBarSherlock in order to support older version than ICS. Each tab contains its own `Fragment` (each one is a subclass of `SherlockListFragment`) I got it to work basically nice, but I have a problem that I'm sure that is stupid, but I can't figure it out yet: On the first time each Fragment is shown, everything is OK, the list is populated and so the MenuItems in the ActionBar. But the second time you see a tab (After swicth and switch-back), Neither the list get populated, nor the ActionBar MenuItems. This is how I'm switching the tabs: ``` @Override public void onTabSelected(Tab tab, FragmentTransaction transaction) { SherlockListFragment toAttach = // Find the right fragment here... if (toAttach != null) { if (toAttach.isAdded() == false) { transaction.add(R.id.tab_placeholder, toAttach, REMINDER_FRAGMENT_TAG); } else { transaction.attach(toAttach); } } } ``` And onTabUneselect I'm detaching the Fragment: ``` @Override public void onTabUnselected(Tab tab, FragmentTransaction transaction) { SherlockListFragment toDetach = // Find the right fragment if (toDetach != null) { transaction.detach(toDetach); } } ``` I'm populating the lists and the ActionBar menu in onResume: ``` @Override public void onResume() { super.onResume(); setHasOptionsMenu(true); fillRemindersList(); } ``` I also tried it in onStart and onCreateView but it didn't help... So what am I missing here? And if there are others issues in my code that I'm unaware of, please do tell. Thanks! EDIT: I just confirmed that `onResume` dosen't get called after I switch tabs, which is definetly wrong since I'm detaching and re-attaching them... Am I switching tabs the wrong way?