Android - limit number of fragments in backStack?

Question

Currently I have one activity, and fragments are being added to it (search, song details, settings, etc). I implemented side based menu navigation, so now, as a side effect, teh

Answer 1

You can programatically control the number of Fragments in your BackStack:

FragmentManager fm = getActivity().getSupportFragmentManager();

if(fm.getBackStackEntryCount() > 10) {

   fm.popBackStack(); // remove one (you can also remove more)
}

Simply check how many Fragments there are in your Backstack and remove if there is an "overflow".

If you want to remove specific Fragments from the BackStack, you will have to implement your own BackStack and override onBackPressed(). Since the Fragment BackStack is a Stack (as the name indicates), only the top element (the last added) can be removed, there is no possibility of removing Fragments in between.

You could for example use

ArrayList

to realize your own stack. Simply add and remove Fragments from that "stack" (it's not really a stack anymore) whenever you desire and handle the loading of previous fragments by overriding the onBackPressed() method.