---
title: identifier
framework: AVKit
role: symbol
role_heading: Instance Property
platforms: [iOS 27.0+, iPadOS 27.0+, Mac Catalyst 27.0+]
path: avkit/avplaybackuserinterfacemediaselectionoption/identifier
---

# identifier

Unique system identifier for this media option, used for programmatic selection and persistence across sessions.

## Declaration

```swift
var identifier: String { get }
```