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# MPMoviePlayerIsAirPlayVideoActiveDidChangeNotification

Posted when a movie player has started or ended playing a movie via AirPlay. There is no `userInfo` dictionary.

```
extern NSString * const MPMoviePlayerIsAirPlayVideoActiveDidChangeNotification;
```

## Discussion

To find out whether AirPlay playback started or stopped, query the [`isAirPlayVideoActive`](/documentation/MediaPlayer/MPMoviePlayerController/isAirPlayVideoActive) property. The movie player whose state has changed is available as the object associated with the notification.

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