---
title: UITabBarController.MinimizeBehavior.onScrollUp
framework: uikit
role: symbol
role_heading: Case
path: uikit/uitabbarcontroller/minimizebehavior/onscrollup
---

# UITabBarController.MinimizeBehavior.onScrollUp

The tab bar minimizes when scrolling up, and expands when scrolling back down. Recommended if the scroll view content is aligned to the bottom.

## Declaration

```swift
case onScrollUp
```