LoadMoreListener.java

public abstract class LoadMoreListener extends RecyclerView.OnScrollListener {
  
    private static final int ITEMS_PER_PAGE = 10;

    private boolean loading = false;
    private int page = 1;

    @Override
    public void onScrolled(@NonNull RecyclerView recyclerView, int dx, int dy) {
        super.onScrolled(recyclerView, dx, dy);
        if (!recyclerView.canScrollVertically(1)
                && !loading
                && recyclerView.getAdapter() != null
                && recyclerView.getAdapter().getItemCount() >= ITEMS_PER_PAGE) {
            page = page + 1;
            loading = true;
            onLoadMore(page);
        }
    }

    public void setLoading(boolean loading) {
        this.loading = loading;
    }

    public void reset() {
        loading = false;
        page = 1;
    }

    public abstract void onLoadMore(int page);
}