private void setLiseners() {
    // listview設(shè)置滑動(dòng)監(jiān)聽
    lsv_new_house.setOnScrollListener(new AbsListView.OnScrollListener() {
      @Override
      public void onScrollStateChanged(AbsListView absListView, int i) {
      }

      @Override
      public void onScroll(AbsListView absListView, int firstVisibleItem, int visibleItemCount, int totalItemCount) {
        if(firstVisibleItem == 0){
          View first_view = lsv_new_house.getChildAt(0);
          if(first_view != null && first_view.getTop() == 0){
//            LogUtils.e("已經(jīng)滾動(dòng)到頂部了");
            bl_down = true;// 可以下拉刷新了
          }else {
//            LogUtils.e("還沒到頂部");
            bl_down = false;// 未滑動(dòng)到頂部不讓下拉刷新
          }
        }

        if(firstVisibleItem + visibleItemCount == totalItemCount){
          View last_view = lsv_new_house.getChildAt(lsv_new_house.getChildCount() - 1);
//          LogUtils.e("height = " + lsv_new_house.getBottom());// 最后一個(gè)item的底部與listview第一個(gè)item頂部之間的距離
//          int h = lsv_new_house.getHeight();
//          LogUtils.e("h = " + h);
          if(last_view != null && last_view.getBottom() == lsv_new_house.getHeight()){
//            LogUtils.e("已經(jīng)滾動(dòng)到最底部了");
            bl_up = true;// 可以上拉加載了
          }else {
//            LogUtils.e("還沒到底部");
            bl_up = false;// 未滑動(dòng)到底部不讓上拉加載
          }
        }
      }
    });
  }