How to implement setOnScrollListener in RecyclerView

Question

How Do I show progress bar at bottom when user reached to items those are visible in a list.

I have written a code in which i am getting data using web service, now

Answer 1

This is how I detect whether RecyclerView should refresh by OnScrollListener, take a look at it:

recyclerView.setOnScrollListener(new RecyclerView.OnScrollListener() {
    int ydy = 0;
    @Override
    public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
        super.onScrollStateChanged(recyclerView, newState);

    }

    @Override
    public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);
        int offset = dy - ydy;
        ydy = dy;
        boolean shouldRefresh = (linearLayoutManager.findFirstCompletelyVisibleItemPosition() == 0)
                && (recyclerView.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING) && offset > 30;
        if (shouldRefresh) {
            //swipeRefreshLayout.setRefreshing(true);
            //Refresh to load data here.
            return;
        }
        boolean shouldPullUpRefresh = linearLayoutManager.findLastCompletelyVisibleItemPosition() == linearLayoutManager.getChildCount() - 1
                && recyclerView.getScrollState() == RecyclerView.SCROLL_STATE_DRAGGING && offset < -30;
        if (shouldPullUpRefresh) {
            //swipeRefreshLayout.setRefreshing(true);
            //refresh to load data here.
            return;
        }
        swipeRefreshLayout.setRefreshing(false);
    }
});

Hope you'll be inspired. Good luck~