---
title: MPMoviePlayerWillEnterFullscreenNotification
framework: mediaplayer
role: symbol
role_heading: Global Variable
path: mediaplayer/mpmovieplayerwillenterfullscreennotification
---

# MPMoviePlayerWillEnterFullscreenNotification

Posted when a movie player is about to enter full-screen mode.

## Declaration

```occ
extern NSString * const MPMoviePlayerWillEnterFullscreenNotification;
```

## Discussion

Discussion The userInfo dictionary contains keys whose values describe the transition animation used to enter full-screen mode. See Fullscreen notification keys. A movie player can enter full screen mode programmatically (see the setFullscreen(_:animated:) method) or by user interaction. The movie player whose state has changed is available as the object associated with the notification.

## See Also

### Notifications

- [MPMoviePlayerDidEnterFullscreenNotification](mediaplayer/mpmovieplayerdidenterfullscreennotification.md)
- [MPMoviePlayerDidExitFullscreenNotification](mediaplayer/mpmovieplayerdidexitfullscreennotification.md)
- [MPMoviePlayerIsAirPlayVideoActiveDidChangeNotification](mediaplayer/mpmovieplayerisairplayvideoactivedidchangenotification.md)
- [MPMoviePlayerLoadStateDidChangeNotification](mediaplayer/mpmovieplayerloadstatedidchangenotification.md)
- [MPMoviePlayerNowPlayingMovieDidChangeNotification](mediaplayer/mpmovieplayernowplayingmoviedidchangenotification.md)
- [MPMoviePlayerPlaybackDidFinishNotification](mediaplayer/mpmovieplayerplaybackdidfinishnotification.md)
- [MPMoviePlayerPlaybackStateDidChangeNotification](mediaplayer/mpmovieplayerplaybackstatedidchangenotification.md)
- [MPMoviePlayerReadyForDisplayDidChangeNotification](mediaplayer/mpmovieplayerreadyfordisplaydidchangenotification.md)
- [MPMoviePlayerScalingModeDidChangeNotification](mediaplayer/mpmovieplayerscalingmodedidchangenotification.md)
- [MPMoviePlayerThumbnailImageRequestDidFinishNotification](mediaplayer/mpmovieplayerthumbnailimagerequestdidfinishnotification.md)
- [MPMoviePlayerTimedMetadataUpdatedNotification](mediaplayer/mpmovieplayertimedmetadataupdatednotification.md)
- [MPMoviePlayerWillExitFullscreenNotification](mediaplayer/mpmovieplayerwillexitfullscreennotification.md)
- [MPMovieDurationAvailableNotification](mediaplayer/mpmoviedurationavailablenotification.md)
- [MPMovieMediaTypesAvailableNotification](mediaplayer/mpmoviemediatypesavailablenotification.md)
- [MPMovieNaturalSizeAvailableNotification](mediaplayer/mpmovienaturalsizeavailablenotification.md)