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# AVNavigationMarkersGroup

A set of markers for navigating playback of an audiovisual presentation.

```
class AVNavigationMarkersGroup
```

## Overview

The most common form of a navigation markers group is a chapter list; however, you can also provide other sets of markers to allow a user to jump to significant events in the presentation. For example, a “Goals Scored” markers group might summarize key moments in a recorded sporting event. When you associate navigation markers with an <doc://com.apple.documentation/documentation/AVFoundation/AVPlayerItem> object you present with an [`AVPlayerViewController`](/documentation/AVKit/AVPlayerViewController), the user interface provides options for navigating each group.

## Topics

### Creating a Navigation Marker Group

[`-  initWithTitle:timedNavigationMarkers:`](/documentation/AVKit/AVNavigationMarkersGroup/init(title:timedNavigationMarkers:))

Initializes a navigation markers group with the specified title and array of timed navigation markers.

[`-  initWithTitle:dateRangeNavigationMarkers:`](/documentation/AVKit/AVNavigationMarkersGroup/init(title:dateRangeNavigationMarkers:))

Initializes a navigation markers group with the specified title and array of date range navigation markers.

### Inspecting Navigation Metadata

[`title`](/documentation/AVKit/AVNavigationMarkersGroup/title)

The title of the marker group.

[`timedNavigationMarkers`](/documentation/AVKit/AVNavigationMarkersGroup/timedNavigationMarkers)

The array of timed navigation markers for which the group provides navigation.

[`dateRangeNavigationMarkers`](/documentation/AVKit/AVNavigationMarkersGroup/dateRangeNavigationMarkers)

The array of date range navigation markers for which the group provides navigation.

## Relationships

### Conforms To

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

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

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

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

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

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

### Inherits From

[`NSObject-swift.class`](/documentation/ObjectiveC/NSObject-swift.class)

---

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