1. @Override  
2. public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  
3.     float headerMoveDistance = ViewHelper.getTranslationY(headerView);  
4.     if (headerMoveDistance <= -headerContent.getHeight()) {  
5.         iv_tabMore.setVisibility(View.VISIBLE);  
6.         iv_tabBack.setVisibility(View.VISIBLE);  
7.   
8.         ll_top.setVisibility(View.INVISIBLE);  
9.   
10.     } else {  
11.         iv_tabMore.setVisibility(View.INVISIBLE);  
12.         iv_tabBack.setVisibility(View.INVISIBLE);  
13.   
14.         ll_top.setVisibility(View.VISIBLE);  
15.     }  
16.     int scrollY = getScrollY(view);  
17.     System.out.println("****************onScroll scrollY:" + scrollY + ",mMinHeaderTranslation:"  
18.             + header_logo.getHeight() + ",end:" + Math.max(-scrollY, header_logo.getHeight()));  
19.   
20.     ViewHelper.setTranslationY(headerView, Math.max(-scrollY, -headerContent.getHeight()));  
21. } 

用Fragment实现Listview顶部停靠