getAdapterPosition() is deprecated

The recyclerview:1.2.0-alpha02 introduced the MergeAdapter that has been renamed to ConcatAdapter with recyclerview:1.2.0-alpha04.
This RecyclerView Adapter can combine multiple adapters linearly.

Something like:

FirstAdapter adapter1 = ...;
SecondAdapter adapter2 = ...;
ConcatAdapter merged = new ConcatAdapter(adapter1, adapter2);
recyclerView.setAdapter(mergedAdapter);

As part of this change the method getAdapterPosition() was deprecated because the name is confusing when adapters nest other adapters. Now you should use the method getBindingAdapterPosition() which returns the position in the specific adapter (bindingAdapter).

Also checking the source code of RecyclerView.ViewHolder:

    @Deprecated
    public final int getAdapterPosition() {
        return getBindingAdapterPosition();
    }

Instead the method getAbsoluteAdapterPosition() returns the Adapter position of the item with respect to the entire RecyclerView. If you are using a ConcatAdapter it is the position in the ConcatAdapter and not the position in the single bindingAdapter.

Just an example with 2 adapters:

More details are available in the official blog post.