如果你把你的ListView /滚动视图中的任何可滚动视图将无法正常工作，因为当你触摸屏幕，你淡淡的主要焦点是父视图（滚动视图）没有子视图（ListView控件）。

If you put your ListView/any scrollable View inside the scrollView it will not work properly because when you touch the screen ,main focus of your touch is on parent view(scrollView ) not the child View (ListView).