SwiftUI 中是否有一种方法可以检测用户是否启用了更大的文本大小? [英] Is there a way in SwiftUI to detect if a user has Larger Text size enabled?

问题描述

我已经阅读了所有关于支持动态文本大小的文章，但我的问题是我有一个由形状和一些文本组成的视图.我需要对此视图的高度进行硬编码，因此当用户使用较大的文本大小时，文本会与形状重叠.我想做的是检测何时使用较大的文本大小并增加视图的硬编码高度.

I've read all the articles about supporting dynamic text size, but my problem is that I have a view consisting of shapes and some text. I needed to hard code the height of this view, so when a user uses a larger text size the text overlaps the shapes. What I would like to do is detect when a larger text size is used and increase the hard coded height of the view.

推荐答案

有一个环境值:

@Environment(\.sizeCategory) var sizeCategory

有了它，您可以执行以下操作:

With that, you can do stuff like:

if sizeCategory > ContentSizeCategory.large {
    // views for large text
} else {
    // views for regular/small text
}

您还应该查看 @ScaledMetric 属性包装器，它将根据用户的文本大小自动缩放您的变量:

You should also check out the @ScaledMetric property wrapper, which will auto-scale your var based on the user’s text size:

@ScaledMetric var height: CGFloat = 100

这是两者的一个很好的总结:https://swiftwithmajid.com/2019/10/09/dynamic-type-in​​-swiftui/

Here's a nice summary of both: https://swiftwithmajid.com/2019/10/09/dynamic-type-in-swiftui/

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