---
title: AVPlaybackUserInterfaceTimelineSegmentType.primary
framework: AVKit
role: symbol
role_heading: Case
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+]
path: avkit/avplaybackuserinterfacetimelinesegmenttype/primary
---

# AVPlaybackUserInterfaceTimelineSegmentType.primary

The segment contains primary program content.

## Declaration

```swift
case primary
```