iOS 7: What is UIBarButtonItem's default font?

Question

What is the default font of the title of a UIBarButtonItem with a style of UIBarButtonItemStyleDone?

The following just returns nil:

[doneBarButtonItem titleTextAttributesForState:UIControlStateNormal]

Vex

Answer 1

[UIFont boldSystemFontOfSize:17]

Note: I confirmed this by doing:

UIFont *font = [UIFont boldSystemFontOfSize:17];
[doneBarButtonItem setTitleTextAttributes:@{NSFontAttributeName: font}
                                 forState:UIControlStateNormal];

And then, I took screenshots of the before & after and compared them. They were identical.

Vex

This doesn't take into account iOS 7's Dynamic Type sizing information. – Know

Good point. Although, that doesn't appear to affect UIBarButtonItem title font. In any case, the slider in Settings > General > Text Size was directly in the middle upon precisely confirming this answer. – Vex

Plus this could change in the future (if it hasn't already). Not really an acceptable answer. There needs to be a way to get it programatically – Oneiromancy

Maybe it changed since 2013, but this is not true anymore. [UIFont systemFontOfSize:17] seems to be ok now (not sure I'm just comparing screenshots) – Croom

Answer 2

You can retrieve the default font for a UILabel (which includes UIBarButton's title label) by querying

UIFont.systemFont(ofSize: UIFont.labelFontSize)

Schnauzer