---
title: "init(layoutDirection:)"
framework: uikit
role: symbol
role_heading: Initializer
path: "uikit/uitraitcollection/init(layoutdirection:)"
---

# init(layoutDirection:)

Creates a trait collection that contains only the specified layout direction trait.

## Declaration

```swift
init(layoutDirection: UITraitEnvironmentLayoutDirection)
```

## Parameters

- `layoutDirection`: The layout direction for the new trait collection. For a list of possible values, see doc://com.apple.uikit/documentation/UIKit/UITraitEnvironmentLayoutDirection.

## Return Value

Return Value A new trait collection containing only the layout direction trait.

## See Also

### Creating a trait collection

- [init()](uikit/uitraitcollection/init().md)
- [init(userInterfaceIdiom:)](uikit/uitraitcollection/init(userinterfaceidiom:).md)
- [init(horizontalSizeClass:)](uikit/uitraitcollection/init(horizontalsizeclass:).md)
- [init(verticalSizeClass:)](uikit/uitraitcollection/init(verticalsizeclass:).md)
- [init(userInterfaceStyle:)](uikit/uitraitcollection/init(userinterfacestyle:).md)
- [init(accessibilityContrast:)](uikit/uitraitcollection/init(accessibilitycontrast:).md)
- [init(userInterfaceLevel:)](uikit/uitraitcollection/init(userinterfacelevel:).md)
- [init(legibilityWeight:)](uikit/uitraitcollection/init(legibilityweight:).md)
- [init(forceTouchCapability:)](uikit/uitraitcollection/init(forcetouchcapability:).md)
- [init(displayScale:)](uikit/uitraitcollection/init(displayscale:).md)
- [init(displayGamut:)](uikit/uitraitcollection/init(displaygamut:).md)
- [init(preferredContentSizeCategory:)](uikit/uitraitcollection/init(preferredcontentsizecategory:).md)
- [init(activeAppearance:)](uikit/uitraitcollection/init(activeappearance:).md)
- [init(toolbarItemPresentationSize:)](uikit/uitraitcollection/init(toolbaritempresentationsize:).md)
- [init(hdrHeadroomUsageLimit:)](uikit/uitraitcollection/init(hdrheadroomusagelimit:)-5zqph.md)