Why is my overflow dropdown menu on top of the actionbar?

Question

By default isn\'t it supposed to be under the actionbar? So what am I doi

Answer 1

According to the Material Design specifications, the overflow menu should display on top of the action bar:

A menu is a temporary sheet of paper that always overlaps the app bar, rather than behaving as an extension of the app bar.

This is the default behavior for Android Lollipop applications as well as any applications that use the AppCompat v7 support library.