RecyclerView 上拉刷新

@BindView(R.id.nmsnewmosrecyclerview)
RecyclerView newmosrecyclerview;

private int lastposion,pagenum=1,pageContent;//最后一个item的posion,当前页数，总页数

recycleview设置滑动监听：

        newmosrecyclerview.addOnScrollListener(new RecyclerView.OnScrollListener() {
            //用来标记是否正在向最后一个滑动，既是否向右滑动或向下滑动
            boolean isSlidingToLast = false;

            @Override
            public void onScrollStateChanged(RecyclerView recyclerView, int newState) {
                LinearLayoutManager manager = (LinearLayoutManager) recyclerView.getLayoutManager();
                // 当不滚动时
                if (newState == RecyclerView.SCROLL_STATE_IDLE) {
                    //获取最后一个完全显示的ItemPosition
                    lastposion = manager.findLastCompletelyVisibleItemPosition();
//                    Log.i("lgq","..........dddddd====="+"....."+lastposion);
                    int totalItemCount = manager.getItemCount();
                    if (lastposion == (totalItemCount - 1) && isSlidingToLast) {
//                        if (enable)
//                        mMy_loadingDialog.show();
                        pagenum++;
                        if (pagenum>pageContent){
                            Toast.makeText(getContext(), "已到底！", Toast.LENGTH_SHORT).show();
                            return;
                        }
                        getarealist(1);//刷新列表请求
                    }
                }
            }

            @Override
            public void onScrolled(RecyclerView recyclerView, int dx, int dy) {
                super.onScrolled(recyclerView, dx, dy);
                Log.i("lgq","sssss==="+dx+"....."+dy);
                //dx用来判断横向滑动方向，dy用来判断纵向滑动方向
                //大于0表示，正在向右滚动；小于等于0 表示停止或向左滚动
                isSlidingToLast = dy > 0;
            }
        });