// Add Friends Fragment to Activity
private void addFriendsFragment() {
mFriendsFragment = new FriendsFragment();
mFriendsFragment.setArguments(getIntent().getExtras());
FragmentTransaction transaction = mFragmentManager.beginTransaction();
transaction.add(R.id.fragment_container, mFriendsFragment);
transaction.commit();
}
@Override
public void notifyDataSetChanged() {
super.notifyDataSetChanged();
Set<String> friends = FriendsFragment.getFriends(context);
data.clear();
data.addAll(friends);
super.notifyDataSetChanged();
}