FragmentManager replace vs Add

Question

In my application there is a FrameLayout on which I am adding various fragments

FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.fragment_content, fragment, fargmentTag);
ft.commit();

Now it seems when I use the ft.replace(R.id.fragment_content, fragment, fargmentTag); and then in other places call

getSupportFragmentManager().findFragmentByTag(fargmentTag); 

I always get null.

However if I use add instead of replace this problem is fixed but another problem appears that each fragment is added ontop of the other fragment and i can see the other fragments below.

I would prefer to use replace, but I need the saved fragment state. Also to be noted I am not using addToBackStack.

Answer 1

Try this and it would work.

FragmentManager fm = getSupportFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.replace(R.id.fragment_content, fragment, fragmentTag);
ft.commitAllowingStateLoss();