addOnScrollListener.java

addOnScrollListener.java

/**
         * For Adding Load more functionality
         *
         */
        rvMoviesList.addOnScrollListener(new RecyclerView.OnScrollListener() {
            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                if (dy > 0) {
                    visibleItemCount = recyclerView.getChildCount();
                    totalItemCount = linearLayoutManager.getItemCount();
                    firstVisibleItem = linearLayoutManager.findFirstVisibleItemPosition();

                    if (loading) {
                        if (totalItemCount > previousTotal) {
                            loading = false;
                            previousTotal = totalItemCount;
                        }
                    }
                    if (!loading && (totalItemCount - visibleItemCount)
                            <= (firstVisibleItem + visibleThreshold)) {
                        // End has been reached
                        Log.i("InfiniteScrollListener", "End reached");

                        callGetTopRatedMoviesApi();
                        loading = true;
                    }
                }
            }
        });