FragmentTransaction is not allowed to be added to back stack?

Question

why cant my fragments be added to back stack?

@Override
    public void onTabSelected(Tab tab, android.app.FragmentTransaction ft) {
        FragmentTransaction          


        

Answer 1

Get rid of your transaction and, instead, use the FragmentTransaction provided in the callback. There's no need to instantiate a new FragmentTransaction when one is already handed to you. Pass in whatever you want into your call to ft.addToBackstack(); and then call ft.commit();