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# UIBlurEffect

An object that applies a blurring effect to the content layered behind a visual effect view.

```
@MainActor class UIBlurEffect
```

## Overview

Views that you add to the [`contentView`](/documentation/UIKit/UIVisualEffectView/contentView) of a visual effect view aren’t affected by the blur effect.

## Topics

### Creating a blur effect

[`+  effectWithStyle:`](/documentation/UIKit/UIBlurEffect/init(style:))

Creates a blur effect with the designated style.

### Constants

[`Style`](/documentation/UIKit/UIBlurEffect/Style)

Blur styles available for blur effect objects.

## Relationships

### Conforms To

[`CustomDebugStringConvertible`](/documentation/Swift/CustomDebugStringConvertible)

[`CustomStringConvertible`](/documentation/Swift/CustomStringConvertible)

[`NSSecureCoding`](/documentation/Foundation/NSSecureCoding)

[`CVarArg`](/documentation/Swift/CVarArg)

[`Equatable`](/documentation/Swift/Equatable)

[`Sendable`](/documentation/Swift/Sendable)

[`Hashable`](/documentation/Swift/Hashable)

[`NSCoding`](/documentation/Foundation/NSCoding)

[`NSCopying`](/documentation/Foundation/NSCopying)

[`NSObjectProtocol`](/documentation/ObjectiveC/NSObjectProtocol)

[`SendableMetatype`](/documentation/Swift/SendableMetatype)

### Inherits From

[`UIVisualEffect`](/documentation/UIKit/UIVisualEffect)

---

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