---
title: UIBackgroundExtensionView
framework: uikit
role: symbol
role_heading: Class
path: uikit/uibackgroundextensionview
---

# UIBackgroundExtensionView

A view that extends content to fill its own bounds.

## Declaration

```swift
class UIBackgroundExtensionView
```

## Overview

Overview A background extension view can be laid out to extend outside the safe area, such as under a sidebar or an inspector. By default, the view lays out its content to stay within the safe area, and uses modifications of the content along the edges to fill the container view.

## Topics

### Instance Properties

- [automaticallyPlacesContentView](uikit/uibackgroundextensionview/automaticallyplacescontentview.md)
- [contentView](uikit/uibackgroundextensionview/contentview.md)

## Relationships

### Inherits From

- [UIView](uikit/uiview.md)

### Conforms To

- [CALayerDelegate](quartzcore/calayerdelegate.md)
- [CLBodyIdentifiable](corelocation/clbodyidentifiable.md)
- [CMBodyIdentifiable](coremotion/cmbodyidentifiable.md)
- [CVarArg](swift/cvararg.md)
- [CustomDebugStringConvertible](swift/customdebugstringconvertible.md)
- [CustomStringConvertible](swift/customstringconvertible.md)
- [Equatable](swift/equatable.md)
- [Hashable](swift/hashable.md)
- [NSCoding](foundation/nscoding.md)
- [NSObjectProtocol](objectivec/nsobjectprotocol.md)
- [NSTouchBarProvider](appkit/nstouchbarprovider.md)
- [Sendable](swift/sendable.md)
- [SendableMetatype](swift/sendablemetatype.md)
- [UIAccessibilityIdentification](uikit/uiaccessibilityidentification.md)
- [UIActivityItemsConfigurationProviding](uikit/uiactivityitemsconfigurationproviding.md)
- [UIAppearance](uikit/uiappearance.md)
- [UIAppearanceContainer](uikit/uiappearancecontainer.md)
- [UICoordinateSpace](uikit/uicoordinatespace.md)
- [UIDynamicItem](uikit/uidynamicitem.md)
- [UIFocusEnvironment](uikit/uifocusenvironment.md)
- [UIFocusItem](uikit/uifocusitem.md)
- [UIFocusItemContainer](uikit/uifocusitemcontainer.md)
- [UILargeContentViewerItem](uikit/uilargecontentvieweritem.md)
- [UIPasteConfigurationSupporting](uikit/uipasteconfigurationsupporting.md)
- [UIPopoverPresentationControllerSourceItem](uikit/uipopoverpresentationcontrollersourceitem.md)
- [UIResponderStandardEditActions](uikit/uiresponderstandardeditactions.md)
- [UITraitChangeObservable](uikit/uitraitchangeobservable-67e94.md)
- [UITraitEnvironment](uikit/uitraitenvironment.md)
- [UIUserActivityRestoring](uikit/uiuseractivityrestoring.md)

## See Also

### Interacting with adjacent views

- [UIScrollEdgeElementContainerInteraction](uikit/uiscrolledgeelementcontainerinteraction.md)