Since nobody had answered my question, I had to answer it my self.
First, it seems it is not recommended to activate the menu button in the navigation bar! (By Google)
Anyway, if you are interested in activating it, all you have to do is:
1. Make a simple menu like before
2. Not to use an action bar
3. Set targetSdkVersion to 13 or below
And, it is highly recommended to read this article Say Goodbye To The Menu Button