(RedBox is MainItem, Blue Box is SubItem)
I want to list another RecyclerView item(Sub Item) inside a RecyclerView item(Main Item) as shown in the picture.
In fact, this has already been implemented. I implemented it by using SubAdapter in onBindViewHolder of Main Adapter.
However, since it is an Adapter in an Adapter, I decided that it was complicated.
I found out about ConcatAdapter and tried to use it.
However, at least as far as I know, it seems that only one RecyclerView Layout can be expressed when using ConcatAdapter.
Is there a way to apply each of the two RecyclerView Layouts when using ConcatAdapter?