Fragment addToBackStack() and popBackStackImmediate() not working

Question

I am currently building an application for Android (14 <= SDK <= 21) by using one ActionBarActivity and more Fragments, such as ListFra

Answer 1

the reason why the popBackStack() and popBackStackImmediatly() is due to the fact that you didnt add that fragment (that you want to pop) to the backStack. In order to do this you have to make a call to addToBackStack() at the moment of making the transaction to add/replace your fragment.