自定義UIFont for preferredFontForTextStyle

Question

如何從preferredFontForTextStyle中爲每個文本樣式返回一個自定義UIFont？

如 我想用ArialHebrew粗體字體爲UIFontTextStyleHeadline和使用ArialHebrew爲UIFontTextStyleBody

Answer 1

如果你只是喜歡動態字體大小與自己的字體，你可以做到這一點

UIFontDescriptor *userFont = [UIFontDescriptor preferredFontDescriptorWithTextStyle:UIFontTextStyleBody]; 
float userFontSize = [userFont pointSize]; 
UIFont *font = [UIFont fontWithName:@"ArialHebrew-Bold" size:userFontSize]; 

Answer 2

斯威夫特的版本：

let systemDynamicFontDescriptor = UIFontDescriptor.preferredFontDescriptorWithTextStyle(UIFontTextStyleBody) 
let size = systemDynamicFontDescriptor.pointSize 
let font = UIFont(name: "ArialHebrew-Bold", size: size) 

Answer 3

開始與iOS 11：

let bodyMetrics = UIFontMetrics(forTextStyle: .body) 
let standardFont = ... // any font you want, for standard type size 
let font = bodyMetrics.scaledFont(for: standardFont)