ios - 快速将 UIFont 转换为 CGFont？

Question

需要为下面的函数传递CGFont

CGFontCreateCopyWithVariations(<#font: CGFont!#>, <#variations: CFDictionary!#>))

Answer 1

这是一个小例子:

var font = UIFont.systemFontOfSize(15.0)
var fontName = font.fontName as NSString
var cgFont = CGFontCreateWithFontName(fontName);

var copiedFont = CGFontCreateCopyWithVariations(cgFont, nil)