listener on RecyclerView that detect all load more trigger from all sides TOP, BOTTOM, RIGHT, LEFT

RecyclerViewLoadmore.java

private void loadMore() {
        int LAUNCH_LOAD_MORE_AT_POSITION_FROM_TOP =5;
        mRecycler.addOnScrollListener(new RecyclerView.OnScrollListener() {

            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);

                RecyclerView.LayoutManager layoutManager = recyclerView.getLayoutManager();

                int firstCompleteVisibleItemPosition = -1;
                int lastCompleteVisibleItemPosition = -1;
                int visibleItemCount = layoutManager.getChildCount();
                int totalItemCount = layoutManager.getItemCount();

                if(layoutManager instanceof GridLayoutManager)
                {
                    GridLayoutManager gridLayoutManager = (GridLayoutManager)layoutManager;
                    firstCompleteVisibleItemPosition = gridLayoutManager.findFirstCompletelyVisibleItemPosition();
                    lastCompleteVisibleItemPosition = gridLayoutManager.findLastCompletelyVisibleItemPosition();
                }else if(layoutManager instanceof LinearLayoutManager)
                {
                    LinearLayoutManager linearLayoutManager = (LinearLayoutManager)layoutManager;
                    firstCompleteVisibleItemPosition = linearLayoutManager.findFirstCompletelyVisibleItemPosition();
                    lastCompleteVisibleItemPosition = linearLayoutManager.findLastCompletelyVisibleItemPosition();
                }

                String message = "";

                // Means scroll at beginning ( top to bottom or left to right).
                if(firstCompleteVisibleItemPosition == LAUNCH_LOAD_MORE_AT_POSITION_FROM_TOP)
                {
                    // dy < 0 means scroll to bottom, dx < 0 means scroll to right at beginning.
                    if(dy < 0 || dx < 0)
                    {
                        // Means scroll to Top.
                        if(dy < 0)
                        {
                            if (BuildConfig.DEBUG)
                                Log.d(TAG, "onScrolled: Top");
                            loadData(true);
                        }

                        // Means scroll to right.
                        if(dx < 0 )
                        {
                            if (BuildConfig.DEBUG)
                                Log.d(TAG, "onScrolled: Right");
                            loadData(true);
                        }
                    }
                }
                // Means scroll at ending ( bottom to top or right to left )
                else if(lastCompleteVisibleItemPosition == (totalItemCount - 1))
                {
                    // dy > 0 means scroll to up, dx > 0 means scroll to left at ending.
                    if(dy > 0 || dx > 0)
                    {
                        // Scroll to Bottom
                        if(dy > 0)
                        {
                            if (BuildConfig.DEBUG)
                                Log.d(TAG, "onScrolled: Bottom");
                            loadData(false);
                        }

                        // Scroll to left
                        if(dx > 0 )
                        {
                            loadData(false);
                            if (BuildConfig.DEBUG)
                                Log.d(TAG, "onScrolled: Left");
                        }
                    }
                }

                if(message.length() > 0) {
                    Toast.makeText(getApplicationContext(), message, Toast.LENGTH_LONG).show();
                }
            }
        });
    }