How to change SwiftUI Font Width

⋅ 2 min read ⋅ SwiftUI Font iOS 16

Table of Contents

In iOS 16, Apple introduces three new width styles to the SF font family.

  • Compressed
  • Condensed
  • Expanded
Compressed, Condensed, and Expanded font width.
Compressed, Condensed, and Expanded font width.

Unfortunately, SwiftUI has no API to access this feature. We have learn this hard truth in SF Font Expanded, Condensed, and Compressed: Three New font width styles in iOS 16.

In Xcode 14.1 (Currently in beta 3), SwiftUI finally got new APIs to set the font width.

There are two ways to set font width in SwiftUI.

  1. Set the width of the font
  2. Sets the font width of the text in a view

Set Font Width in SwiftUI

In Xcode 14.1, we got width(_:) modifier that lets us set a font width to the font.

In this example, we set the expanded width to the large title style font. And set the compressed width to the body style font.

VStack {
Text("Alphabet")
.font(
.largeTitle.width(.expanded)
)
Text("The quick brown fox jumps over the lazy dog")
.font(
.body.width(.compressed)
)
}
Use .width(_:) modifier to set the font width.
Use .width(_:) modifier to set the font width.

This new modifier aligns well with other modifiers like weight(_:).

And the best part about this new API is it is backward compatible with iOS 16!

The width(_:) modifier is backward compatible with iOS 16.
The width(_:) modifier is backward compatible with iOS 16.

Set Font Width of the text in a view

SwiftUI has modifiers to modify text in the view, such as fontWeight(_:) and font(_:). With the introduction of new width(_:) modifier, Apple also introduce the fontWidth(_:) modifier to align with current API set.

fontWidth(_:) can set the font width of the text in the view.

In this example, we set font width to expanded for every text in the VStack.

VStack {
Text("Large Title")
.font(.largeTitle)
Text("Title 1")
.font(.title)
Text("Title 2")
.font(.title2)
Text("Title 3")
.font(.title3)
Text("Body")
.font(.body)
Text("Callout")
.font(.callout)
Text("Footnote")
.font(.footnote)
Text("Caption 1")
.font(.caption)
Text("Caption 2")
.font(.caption2)
}
.fontWidth(.expanded)
Use fontWidth(_:) modifier to set the font width of the text in the view.
Use fontWidth(_:) modifier to set the font width of the text in the view.

The modifier also backported to iOS 16.


Read more article about SwiftUI, Font, iOS 16, or see all available topic

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