popBackStack() after addToBackStack does not work

Question

My project contains two fragment :

• FragmentA : the fragment loaded by default when the app starts
• FragmentB : replace the fragmentA when a c

Answer 1

You use the getSupportedFragmentManager() to replace FragmentA by FragmentB. But you call popBackStack() on the getFragmentManager().

If you are adding the Fragments to the android.support.v4.app.FragmentManager you also have to call popBackStack() on the same FragmentManager.

This code should solve the problem:

if (getSupportFragmentManager().getBackStackEntryCount() > 0){
    boolean done = getSupportFragmentManager().popBackStackImmediate();
}