list.setOnScrollListener(new OnScrollListener() {//添加滾動條滾到最底部，加載余下的元素     public void onScrollStateChanged(AbsListView view, int scrollState) {//       if (scrollState == OnScrollListener.SCROLL_STATE_IDLE) {//此方法可以用，但滾動條滾動到頂端，也觸發//       Toast.makeText(TestListScroll.this, "OK", Toast.LENGTH_SHORT).show();//       bindViewData();bindViewData//       } //此方法正好滿足需求：滾動到低端，加載數據 if(view.getLastVisiblePosition() == (view.getCount() -1)){  bindViewData();//加載數據的方法 }}//下面的方法，可以實現滾動加載，每滾動一條，則在底端加載一條。public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {//滾動加載////     Toast.makeText(TestListScroll.this, "OK" + firstVisibleItem + "|" + visibleItemCount + "|" + totalItemCount, Toast.LENGTH_SHORT).show();//     int lastItem = firstVisibleItem + visibleItemCount;////     Toast.makeText(TestListScroll.this, "OK" + listItem.size() + firstVisibleItem + visibleItemCount + lastItem , Toast.LENGTH_SHORT).show();//      if (listItem.size() == lastItem && listItemAdapter.getCount() > 0) {//       start = end;//       end = end + 1;//       //       bindViewData();//      }}});