How to access a view of parent fragment from child fragment in navigation component

Question

I need to access a view of parent fragment from child fragment.

I have a graph inside a fragment (my parent fragment) and i want to access a view that present in the parent fragment from child fragment, i'm using android navigation component, it's confused me a little bit.

Answer 1

As i read your Explanation's You Know that ChildFragment Parent is NavHostFragment and NavHostFragment's Parent is ParentFragment.

NavHostFragment navHostFragment = (NavHostFragment) getParentFragment();
Fragment parent = (Fragment) navHostFragment.getParentFragment();
parent.getView().findViewById(R.id.element_id);

I have tried is my demo Project and work's for me.

Answer 2

Using Activity:

val buttonView = (context as Activity).findViewById<View>(R.id.map_list_card_view)

Using Fragment:

val parent: Fragment? = (parentFragment as NavHostFragment).parentFragment
val buttonView = parent?.view?.findViewById<View>(R.id.map_list_card_view)