title: How to scroll to the last added item in RecyclerView, when the item have been shuffled using collection
body: <p>since the items in recyclerview have been already shuffled (using Collections.sort(dataList, MainData.Increment);) I cannot use the Id from database or dataList, because it will not correspond to the position of the item in the recyclerview.</p>
  <p>recyclerView.smoothScrollToPosition(??????); How to know the right integer value?</p>
  <p>Thanks in advance for any help.</p>