RecyclerView notifyDataSetChanged scrolls to top position

Question

when calling notifyDataSetChanged on RecyclerView it doesn't retain the scroll position and scrolls to top, is there any solution to retain it's scroll position?

Answer 1

If your RecyclerView list item parent has "wrap_content" property, Recyclerview calculates the heights again and scrolls top.

There are two solutions:

1. Set your height a constant value like this: layout_height="100dp"

2. Use StaggeredGridLayoutManager like this:

   mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL));

The second solution is more efficient and I suggest this one

Answer 2

Not sure if this solves your problem but I was having the same issue and it was because I was calling setAdapter after notify. So, not calling setAdapter after notify solved the problem.

mAdapter.notifyItemRangeInserted(mAdapter.getItemCount(), list.size() - 1); recyclerView.setAdapter(); // remove this line.  //Do this only when you're setting the data for the first time or when adapter is null.