---
title: UIVerticalBarCompressionBehavior
framework: UIKit
role: symbol
role_heading: Enumeration
platforms: [iOS 27.1+, iPadOS 27.1+]
path: uikit/uiverticalbarcompressionbehavior
---

# UIVerticalBarCompressionBehavior

How bars compress when different types of bars are hosted together and space is constrained.

## Declaration

```swift
enum UIVerticalBarCompressionBehavior
```

## Topics

### Specifying a compression behavior

- [UIVerticalBarCompressionBehavior.automatic](uikit/uiverticalbarcompressionbehavior/automatic.md)
- [UIVerticalBarCompressionBehavior.prefersBarItems](uikit/uiverticalbarcompressionbehavior/prefersbaritems.md)
- [UIVerticalBarCompressionBehavior.prefersTabBar](uikit/uiverticalbarcompressionbehavior/preferstabbar.md)

### Initializers

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

## Relationships

### Conforms To

- [BitwiseCopyable](swift/bitwisecopyable.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [RawRepresentable](swift/rawrepresentable.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)

## See Also

### Configuring bars on the vertical axis

- [verticalBarCompressionBehavior](uikit/uinavigationitem/verticalbarcompressionbehavior.md)