通过在Android中自定义StickinessView实现一个粘性滑动效果

 @Override public void onScroll(AbsListView view, int firstVisibleItem, int visibleItemCount, int totalItemCount) {  View v = mListView.getChildAt(0);  //当firstItem的top为0的时候就认为已经到达ListView的顶部了  if (mListView.getChildCount() > 0 && firstVisibleItem == 0) {   //滑动到顶部   if (v.getTop() == 0) {    //滑动到顶部了    isListViewTop = true;   } else {    isListViewBottom = false;   }  }else if (mListView.getChildCount()>0&&firstVisibleItem+visibleItemCount==totalItemCount){   final View bottomChildView = mListView.getChildAt(mListView.getChildCount()-1);//当最后一个itemView的bottom>=ListView的高度的时候，那么就认为到达底部了   if    (mListView.getHeight()>=bottomChildView.getBottom()){    isListViewBottom = true;   }else {    isListViewBottom = false;   }  }else {   isListViewBottom = false;   isListViewTop = false;  }