NSComboBox With File Selection

Question

I would like to create an NSComboBox like the following:

Before Click:

After Click:

I understand that this comboBox can be achieved by using Java. I created a quick JFrame, added a JCombobox, and got the same look!

But my question is:

How can I get this combo box in Cocoa (AppKit) (I am programming in Objective-C). Also, how can I implement the separator and "select...". Pressing select will open a file selection window:

Answer 1

In Cocoa, that's called a NSPopupButton. There's no text field, so it's not a combo box (nothing to "combo").

The easiest way to set this up is to create the menu in IB, including separators and pointers to actions, and then set the popup button's "menu" attribute.

Apple NSPopupbutton reference has pointers to several example projects. There are also plenty of online tutorials about how to set up menu actions in Interface Builder.