How to get a Fragment to remove itself, i.e. its equivalent of finish()?

I'm converting an app to use fragments using the compatibility library. Now currently I have a number of activities (A B C D) which chain onto one another, D has a button 'OK' which when pressed calls finish which then bubbles up through onActivityResult() to additionally destroy C and B.

For my pre Honycomb fragment version each activity is effectively a wrapper on fragments Af Bf Cf Df. All activities are launched via startActivityForResult() and onActivityResult() within each of the fragments can happily call getActivity().finish()

The problem that I am having though is in my Honeycomb version I only have one activity, A, and fragments Bf, Cf, Df are loaded using the FragmentManager.

What I don't understand is what to do in Df when 'OK' is pressed in order to remove fragments Df, Cf, and Bf?

I tried having the fragment popping itself off the stack but this resulted in an exception. onActivityResult() is useless because I have not loaded up the fragment using startActivityForResult().

Am I thinking about this completely the wrong way? Should I be implementing some sort of listener that communicates with either the parent fragment or activity in order to do the pop using the transaction manager?

Solution 1:

While it might not be the best approach the closest equivalent I can think of that works is this with the support/compatibility library

getActivity().getSupportFragmentManager().beginTransaction().remove(this).commit();

or

getActivity().getFragmentManager().beginTransaction().remove(this).commit();

otherwise.

In addition you can use the backstack and pop it. However keep in mind that the fragment might not be on the backstack (depending on the fragmenttransaction that got it there..) or it might not be the last one that got onto the stack so popping the stack could remove the wrong one...

Solution 2:

You can use the approach below, it works fine:

getActivity().getSupportFragmentManager().popBackStack();