---
title: MPMoviePlayerFullscreenAnimationDurationUserInfoKey
framework: mediaplayer
role: symbol
role_heading: Global Variable
path: mediaplayer/mpmovieplayerfullscreenanimationdurationuserinfokey
---

# MPMoviePlayerFullscreenAnimationDurationUserInfoKey

## Declaration

```swift
let MPMoviePlayerFullscreenAnimationDurationUserInfoKey: String
```

## Discussion

Discussion The value of this key is an NSNumber containing a double value. This value represents the duration (measured in seconds) of the animation used to transition in or out of full-screen mode.

## See Also

### Constants

- [MPMoviePlayerFullscreenAnimationCurveUserInfoKey](mediaplayer/mpmovieplayerfullscreenanimationcurveuserinfokey.md)