android - How to scroll horizontal RecyclerView programmatically?

Question

I have a horizontal RecyclerView and two button (Next,Previous) as shown in the image below.

so i need to move to the next item or position by use these buttons , i know about method called scrollTo but i don't know how does it work

Answer 1

I found the answer:

case R.id.next:
    mRecyclerView.getLayoutManager().scrollToPosition(linearLayoutManager.findLastVisibleItemPosition() + 1);
    break;
case R.id.pre:
    mRecyclerView.getLayoutManager().scrollToPosition(linearLayoutManager.findFirstVisibleItemPosition() - 1);
    break;