Android how can I get current positon on recyclerview that user scrolled to item

Question

In my RecyclerView I have some items that user can scroll and see that. Now I want to save this position and scroll that after come back. This below code return

Answer 1

You are trying to get the info on the wrong object. It is not the RecyclerView nor the Adapter responsibility but the RecyclerView's LayoutManager.

Instead of the generic ViewTreeObserver.OnScrollChangedListener() I would recommend to add instead the RecyclerView.OnScrollListener and use the onScrollStateChanged(RecyclerView recyclerView, int newState) callback which gives you the newState, you should use SCROLL_STATE_IDLE to fetch its position. Meaning:

yourRecyclerView.getLayoutManager().findFirstVisibleItemPosition();

As Rik van Velzen pointed out, you probably need to cast your LayoutManager to a LinearLayoutManager or GridLayoutManager (you have to cast to the correct type you are using) to access these findVisibleXXXX() methods.

On said callback method. Hope I made this clear enough for your, you can find documentation on the classes here:

RecyclerView.OnScrollListener

yigit's (Google) response on visible positions