getParentFragment returning null

Question

I have a Fragment that has a FrameLayout. This first fragment (A) loads inside its Framelayout another fragment (B). When I call getParentFra

Answer 1

In my case, although my fragmentA was nested in fragmentB,but I still get null after call getParentFragment in FragmentA. Finally I found that I should use getChildFragmentManager rather than getFragmentManager in FragmentB.

check this What is difference between getSupportFragmentManager() and getChildFragmentManager()?