试图在iOS上获得SF Pro Display Thin Italics [英] Trying to get SF Pro Display Thin Italics on iOS

问题描述

我正在Swift中编写一个iOS应用程序，我想使用系统字体SF Pro。但是，我似乎无法弄清楚如何在使文本斜体的同时设置字体粗细。我知道这可以通过Helvetica Neue来实现

I am writing an iOS app in Swift, and I want to use the system font, SF Pro. However, I can't seem to figure out how to set the font weight at the same time as making the text italic. I know this was possible with Helvetica Neue with

UIFont(name: "HelveticaNeue-UltraLightItalic", size: 24.0)

但是当使用系统字体时，我似乎只能做这样的一个

But when using the system font, I can only seem to do one or the other like this

UIFont.italicSystemFont(ofSize: 24)

或

UIFont.systemFont(ofSize: 75.0, weight: UIFontWeightThin)

我在Font Book中看过SF Pro Display Thin Italic，我知道你可以用它来编辑Sketch和Photoshop等应用程序，但是我还没有找到让iOS显示的方法。

I have seen SF Pro Display Thin Italic in Font Book, and I know you can use it in editing apps like Sketch and Photoshop, but I have yet to find a way to get iOS to display it.

推荐答案

这是一种方法：

    var fnt = UIFont.systemFont(ofSize: 75.0, weight: UIFontWeightThin)
    if let dsc = fnt.fontDescriptor.withSymbolicTraits(.traitItalic) {
        fnt = UIFont(descriptor: dsc, size: 0)
    }
    labelOne.font = fnt

这应该可以为你提供一些东西 - 比如把它变成扩展名来使它变得灵活。

That should give you something to build on - such as turning it into an extension to make it flexible.

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