---
title: UIConfigurationState
framework: uikit
role: symbol
role_heading: Protocol
path: uikit/uiconfigurationstate-8d7pd
---

# UIConfigurationState

The requirements for an object that encapsulates a view’s state.

## Declaration

```swift
protocol UIConfigurationState
```

## Overview

Overview This protocol provides a blueprint for a configuration state object, which encompasses a trait collection along with all of the common states that affect a view’s appearance. A configuration state encapsulates the inputs that configure a view for any possible state or combination of states. You use a configuration state with background and content configurations to obtain the default appearance for a specific state. Typically, you don’t create a configuration state yourself. To obtain a configuration state, override the updateConfiguration(using:) method in your view subclass and use the state parameter. Outside of this method, you can get a view’s configuration state by using its configurationState property. For more information, see UIViewConfigurationState and UICellConfigurationState.

## Topics

### Managing configuration states

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

### Creating a configuration state manually

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

## Relationships

### Conforming Types

- [UICellConfigurationState](uikit/uicellconfigurationstate-swift.struct.md)
- [UIContentUnavailableConfigurationState](uikit/uicontentunavailableconfigurationstate-swift.struct.md)
- [UIViewConfigurationState](uikit/uiviewconfigurationstate-swift.struct.md)

## See Also

### Configuration states

- [UIViewConfigurationState](uikit/uiviewconfigurationstate-swift.struct.md)
- [UICellConfigurationState](uikit/uicellconfigurationstate-swift.struct.md)
- [UIConfigurationStateCustomKey](uikit/uiconfigurationstatecustomkey.md)