How to create a layer menu?
<p>How to create a layer menu? I want to create a custom menu,but I do not know how to create a layer，For example, a Imagebutton is pressed to display a list of menu.like this:</p>

<p><a href="http://ss12.sinaimg.cn/orignal/5d8cb30ag8f47eca43a5b&amp;690" rel="nofollow">http://ss12.sinaimg.cn/orignal/5d8cb30ag8f47eca43a5b&amp;690</a></p>
