如何创建类似于Dropbox的菜单下拉菜单的NSMenuItem？

Question

Dropbox has a wonderful new dropdown view for their menubar app. I have failed to find similiar cocoa examples to duplicate this type of view. NSMenuItem seems to be for basic lists. Any pointers in the right direction?

Answer 1

It's not a NSMenuItem . It is a NSStatusItem that resides in the systemwide NSStatusBar . The distinction is important, because NSStatusItem s can call just about any method on any given object of your application when they're clicked.

I suspect that their NSStatusItem triggers an action that displays a borderless window.

You can find more information about status items in the Status Bar Programming Topics document.