Type Property


Posted when the playback state changes programmatically or by user action.


static let MPMusicPlayerControllerPlaybackStateDidChange: NSNotification.Name


The object associated with the notification is the music player whose playback state changed. The notification has no userInfo dictionary.

See Also

Using Music Player Notifications

func beginGeneratingPlaybackNotifications()

Starts the generation of playback notifications.

func endGeneratingPlaybackNotifications()

Ends the generation of playback notifications.

static let MPMusicPlayerControllerNowPlayingItemDidChange: NSNotification.Name

Posted when the currently playing media item has changed.

static let MPMusicPlayerControllerVolumeDidChange: NSNotification.Name

Posted when the audio playback volume for the music player has changed.