如何更改NSAttributedString字体大小

Question

How can I change the font size of a NSAttributedString that has been initialized with

init(data: Data, options: [NSAttributedString.DocumentReadingOptionKey : Any] = [:], documentAttributes: AutoreleasingUnsafeMutablePointer<NSDictionary?>?)

Actually I have strings that contain html tags, I use the extension given here by Roger Carvalho. The html tags are correctly rendered but the font is not the same as the regular one given by FontSizeMetrics :

let fontMetrics: FontSizeMetrics = FontSizeMetrics()
let font = UIFont(name: "NotoSans", size: fontMetrics.fontRegular)

Answer 1

在Swift 4中：

[NSAttributedStringKey.font : UIFont.boldSystemFont(ofSize: 17.0)]