I am trying to have a button, in a toolbar, use a system icon, by modifying its appearance in the XCode 7 interface builder. If I do this at the toolbar item level, then this just becomes a regular UIButtonBarItem, removing the button underneath. This means it won't send any press items, from what I can see.
I don't see a way on the UIButton, in the interface builder, to specify a system icon. Ideally I would like to avoid having to do this programmatically. Can anyone suggested a way?
Note, Apple indicates:
iOS provides a lot of small icons—representing common tasks and types of content—for use in tab bars, toolbars, navigation bars, and Home screen quick actions. It’s a good idea to use the built-in icons as much as possible because users already know what they mean.
Unfortunately it is not clear how to leverage them? Some sources indicate using "iOS-Artwork-Extractor", but I would hope there is another way to address this, maybe via some API call?
XCode 7.2.1, targeting iOS.