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# UIActivityIndicatorView

A view that shows that a task is in progress.

```
@MainActor class UIActivityIndicatorView
```

## Overview

You control when an activity indicator animates by calling the [`startAnimating()`](/documentation/UIKit/UIActivityIndicatorView/startAnimating()) and [`stopAnimating()`](/documentation/UIKit/UIActivityIndicatorView/stopAnimating()) methods. To automatically hide the activity indicator when animation stops, set the [`hidesWhenStopped`](/documentation/UIKit/UIActivityIndicatorView/hidesWhenStopped) property to <doc://com.apple.documentation/documentation/Swift/true>.

You can set the color of the activity indicator by using the [`color`](/documentation/UIKit/UIActivityIndicatorView/color) property.

## Topics

### Creating an activity indicator

[`-  initWithActivityIndicatorStyle:`](/documentation/UIKit/UIActivityIndicatorView/init(style:))

Creates an activity indicator.

[`-  initWithFrame:`](/documentation/UIKit/UIActivityIndicatorView/init(frame:))

Creates an activity indicator with the specified frame rectangle.

[`-  initWithCoder:`](/documentation/UIKit/UIActivityIndicatorView/init(coder:))

Creates an activity indicator from data in an unarchiver.

### Managing an activity indicator

[`-  startAnimating`](/documentation/UIKit/UIActivityIndicatorView/startAnimating())

Starts the animation of the progress indicator.

[`-  stopAnimating`](/documentation/UIKit/UIActivityIndicatorView/stopAnimating())

Stops the animation of the progress indicator.

[`animating`](/documentation/UIKit/UIActivityIndicatorView/isAnimating)

A Boolean value indicating whether the activity indicator is currently running its animation.

[`hidesWhenStopped`](/documentation/UIKit/UIActivityIndicatorView/hidesWhenStopped)

A Boolean value that controls whether the activity indicator is hidden when the animation is stopped.

### Configuring the activity indicator appearance

[`activityIndicatorViewStyle`](/documentation/UIKit/UIActivityIndicatorView/style-swift.property)

The basic appearance of the activity indicator.

[`color`](/documentation/UIKit/UIActivityIndicatorView/color)

The color of the activity indicator.

### Constants

[`Style`](/documentation/UIKit/UIActivityIndicatorView/Style-swift.enum)

The visual style of the progress indicator.

## Relationships

### Conforms To

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

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

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

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

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

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

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

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

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

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

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

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

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

[`CALayerDelegate`](/documentation/QuartzCore/CALayerDelegate)

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

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

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

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

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

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

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

[`UITraitChangeObservable-67e94`](/documentation/UIKit/UITraitChangeObservable-67e94)

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

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

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

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

[`CLBodyIdentifiable`](/documentation/CoreLocation/CLBodyIdentifiable)

[`CMBodyIdentifiable`](/documentation/CoreMotion/CMBodyIdentifiable)

[`NSTouchBarProvider`](/documentation/AppKit/NSTouchBarProvider)

### Inherits From

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

---

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