---
title: hideShowBarDuration
framework: uikit
role: symbol
role_heading: Type Property
path: uikit/uinavigationcontroller/hideshowbarduration
---

# hideShowBarDuration

A variable that specifies the duration when animating the navigation bar.

## Declaration

```swift
class let hideShowBarDuration: CGFloat
```

## Discussion

Discussion Note that this is a constant value, so it can’t be set.

## See Also

### Configuring custom toolbars

- [toolbar](uikit/uinavigationcontroller/toolbar.md)
- [setToolbarHidden(_:animated:)](uikit/uinavigationcontroller/settoolbarhidden(_:animated:).md)
- [isToolbarHidden](uikit/uinavigationcontroller/istoolbarhidden.md)