---
title: UISplitViewController.LayoutEnvironment.none
framework: uikit
role: symbol
role_heading: Case
path: uikit/uisplitviewcontroller/layoutenvironment/none
---

# UISplitViewController.LayoutEnvironment.none

There is no containing split view controller.

## Declaration

```swift
case none
```

## See Also

### Constants

- [UISplitViewController.LayoutEnvironment.collapsed](uikit/uisplitviewcontroller/layoutenvironment/collapsed.md)
- [UISplitViewController.LayoutEnvironment.expanded](uikit/uisplitviewcontroller/layoutenvironment/expanded.md)