Creating an expandable RecyclerView

Question

I\'m trying to implement a recyclerview that behaves like my sketch below:

The idea is that there is a parent list, when an list item in the parent list is tapp

Answer 1

This is bit late but take a look on this advanced recyclerview library https://github.com/h6ah4i/android-advancedrecyclerview

In their documentation you can see Expandable item related classes/interfaces check it out.