i am implementing the new nested fragment feature and had stumble into a problem. my view is basically this: a main activity(A) that includes a fragment(
Yes they can.
With android 4.2 or support library revisiion 11 nested fragments participate in populating options menu, as allways you need to call setHasOptionsMenu(true) during onCreate().
But if you are using ActionBarSherlock they won't, you have to manually call from parent fragment onCreateOptionsMenu() nested fragment method onCreateOptionsMenu().
Update: issue