Returns an array of font family names available on the system.
- iOS 2.0+
- tvOS 9.0+
- watchOS 2.0+
An array of
NSString objects, each of which contains the name of a font family.
Font family names correspond to the base name of a font, such as
Times New Roman. You can pass the returned strings to the
font method to retrieve a list of font names available for that family. You can then use the corresponding font name to retrieve an actual font object.