---
title: verticalBarCompressionBehavior
framework: UIKit
role: symbol
role_heading: Instance Property
platforms: [iOS 27.1+, iPadOS 27.1+]
path: uikit/uinavigationitem/verticalbarcompressionbehavior
---

# verticalBarCompressionBehavior

When the tab bar and navigation/toolbar items are both rendered together in the vertical bar, this property controls which items compress first.

## Declaration

```swift
var verticalBarCompressionBehavior: UIVerticalBarCompressionBehavior { get set }
```

## Discussion

Discussion The default value is UIVerticalBarCompressionBehaviorAutomatic.

## See Also

### Configuring bars on the vertical axis

- [UIVerticalBarCompressionBehavior](uikit/uiverticalbarcompressionbehavior.md)