nsfont - How to get array of fonts contained in an NSFontCollection?

Question

How can you get an NSArray of fonts or fontfamilies that are "contained" by an NSFontCollection?

All NSFont and NSFontManager methods seem to require a single NSFontDescriptor, while NSFontCollection returns an NSArray of NSFontDescriptor objects. It seems like there should be a method that returns fonts matching these.

Is it necessary to query each font descriptor against all fonts manually?

Answer 1

NSArray *familyNames = [[NSFontManager sharedFontManager] availableFontFamilies];

Answer 2

您可以获取字体集合matchingDescriptors（一个数组NSFontDescriptor）并询问每个描述符的-objectForKey:NSFontFamilyAttribute，并将它们（字符串）转储到一个集合中以使它们唯一。

或者，您可以将每个字体描述符转换为字体（通过使用描述符创建字体）并请求它familyName（然后将其唯一）。

这两种方法对于 Swift 来说都相当简单compactMap()（丢弃nils）。