private boolean isLastItemDisplaying(RecyclerView recyclerView){
    if (recyclerView.getAdapter().getItemCount() != 0) {
        int lastVisibleItemPosition = ((LinearLayoutManager) recyclerView.getLayoutManager()).findLastCompletelyVisibleItemPosition();
        if (lastVisibleItemPosition != RecyclerView.NO_POSITION && lastVisibleItemPosition == recyclerView.getAdapter().getItemCount() - 1)
            return true;
    }
    return false;
}
private final RecyclerView.OnScrollListener onScrollListener = new RecyclerView.OnScrollListener() {
    @Override
    public void onScrollStateChanged(final RecyclerView recyclerView, final int newState) {
        // code
        if (isLastItemDisplaying(recyclerView)) {
            if (loadallow){
                if (postProviderList.size()<20 && postProviderList.size()>=1) {
                    loadallow = false;
                }else{
                    loadallow = false;
                    LoadPostsMore();
                }
            }
        }
    }

    @Override
    public void onScrolled(final RecyclerView recyclerView, final int dx, final int dy) {
        // code
    }
};