---
title: "subscript(_:)"
framework: uikit
role: symbol
role_heading: Instance Subscript
path: "uikit/uiconfigurationstate-8d7pd/subscript(_:)"
---

# subscript(_:)

Accesses custom states by key.

## Declaration

```swift
subscript(key: UIConfigurationStateCustomKey) -> AnyHashable? { get set }
```

## See Also

### Managing configuration states

- [traitCollection](uikit/uiconfigurationstate-8d7pd/traitcollection.md)