What is the lifecycle of a fragment in a fragment?

Question

Android

Hello! I have a fragment that hosts fragments (let's call them sub-fragments). The network is full of examples of how to work with callbacks from a fragment in an activity ( https://developer.android.com/guide/components/fra... There, in onAttach, a listener is made from an activity, in onDetach we make a listener = null. This is all clear.
But I need to make the listener not from the activity, but from the parent fragment.Therefore, the question is: at what stages of the fragment life cycle is it correct to refer to the parent fragment? Also in onAttach / onDetach?
Thanks in advance!

Answer 1

https://developer.android.com/reference/android/ap...
the answer assumes that you are familiar with the differences between fragment managers