---
title: UIAxis
framework: uikit
role: symbol
role_heading: Structure
path: uikit/uiaxis
---

# UIAxis

A structure that specifies the layout axes.

## Declaration

```swift
struct UIAxis
```

## Topics

### Constants

- [horizontal](uikit/uiaxis/horizontal.md)
- [vertical](uikit/uiaxis/vertical.md)
- [both](uikit/uiaxis/both.md)

### Initializers

- [init(rawValue:)](uikit/uiaxis/init(rawvalue:).md)

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [ExpressibleByArrayLiteral](swift/expressiblebyarrayliteral.md)
- [OptionSet](swift/optionset.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [SetAlgebra](swift/setalgebra.md)

## See Also

### Related types

- [UIOffset](uikit/uioffset.md)
- [UIEdgeInsets](uikit/uiedgeinsets.md)
- [NSDirectionalEdgeInsets](uikit/nsdirectionaledgeinsets.md)
- [NSDirectionalRectEdge](uikit/nsdirectionalrectedge.md)
- [NSRectAlignment](uikit/nsrectalignment.md)
- [UIKit macros](uikit/uikit-macros.md)