---
title: "traitCollectionByModifyingTraits:"
framework: uikit
role: symbol
role_heading: Instance Method
platforms: [iOS 17.0+, iPadOS 17.0+, Mac Catalyst 17.0+, tvOS 17.0+, visionOS 1.0+]
path: "uikit/uitraitcollection/traitcollectionbymodifyingtraits:"
---

# traitCollectionByModifyingTraits:

## Declaration

```occ
- (UITraitCollection *) traitCollectionByModifyingTraits:(UITraitMutations) mutations;
```

## See Also

### Modifying traits

- [traitCollectionWithTraits:](uikit/uitraitcollection/traitcollectionwithtraits:.md)
- [UITraitMutations](uikit/uitraitmutations.md)