官方地址  https://www.jianshu.com/p/b343fcff51b0/

1.第一次进来会自动加载更多的问题
设置阈值，当到达阈值时，baseQuickAdapter.setEnableLoadMore(false);

baseQuickAdapter.setEnableLoadMore(true);
       ryv.setAdapter(baseQuickAdapter);
       baseQuickAdapter.openLoadAnimation(BaseQuickAdapter.ALPHAIN);
       baseQuickAdapter.setOnLoadMoreListener(new BaseQuickAdapter.RequestLoadMoreListener() {
           @Override
           public void onLoadMoreRequested() {
               if (pageCount > page) {
                   _loadMore();
               } else {
                   baseQuickAdapter.setEnableLoadMore(false);
               }
           }
       }, ryv);