Impostare le notifiche

Il lettore può ascoltare una serie di eventi che indicano lo stato del lettore.

Supponendo che PTMediaPlayer è una proprietà del lettore client, self.player nell'esempio seguente rappresenta PTMediaPlayer dell'istanza. L'esempio seguente implementa addObservers metodo visualizzato nelle istruzioni di configurazione di PTMediaPlayer e che include la maggior parte delle notifiche:

[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerStatusChange:)
      name:PTMediaPlayerStatusNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerNotification:)
      name:PTMediaPlayerNewNotificationEntryAddedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerTimeChange:)
      name:PTMediaPlayerTimeChangeNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerItemPlayStarted:)
      name:PTMediaPlayerPlayStartedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerItemPlayCompleted:)
      name:PTMediaPlayerPlayCompletedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerItemTimelineChanged:)
      name:PTMediaPlayerTimelineChangedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerItemMediaSelectionOptionsAvailable:)
      name:PTMediaPlayerMediaSelectionOptionsAvailableNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerAdBreakStarted:)
      name:PTMediaPlayerAdBreakStartedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerAdBreakCompleted:)
      name:PTMediaPlayerAdBreakCompletedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerAdPlayStarted:)
      name:PTMediaPlayerAdStartedNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerAdPlayProgress:)
      name:PTMediaPlayerAdProgressNotification object:self.player];
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(onMediaPlayerAdPlayCompleted:)
      name:PTMediaPlayerAdCompletedNotification object:self.player];

Notifiche iOS

ThePTMediaPlayerNotifications La classe elenca le notifiche che TVSDK invia al lettore.

Gestori di esempio per le notifiche

I seguenti snippet di codice illustrano alcuni modi in cui è possibile utilizzare le notifiche.

Recupera il PTAdBreak istanza che utilizza PTMediaPlayerAdBreakKey:

 - (void) onMediaPlayerAdBreakStarted:(NSNotification *) notification {
   // Fetch the PTAdBreak instance using PTMediaPlayerAdBreakKey
   PTAdBreak *adBreak = [notification.userInfo objectForKey:PTMediaPlayerAdBreakKey];
   ...
   ...
}

Imposta subtitlesOptions e audioOptions:

 - (void) onMediaPlayerItemMediaSelectionOptionsAvailable:(NSNotification \*) notification {
   //SubtitlesOptions and audioOptions are set and accessible now.
   NSArray* subtitlesOptions = self.player.currentItem.subtitlesOptions;
   NSArray* audioOp tions = self.player.currentItem.audioOptions;
   ...
   ...
}

Recupera il PTAd istanza che utilizza PTMediaPlayerAdKey:

 - (void) onMediaPlayerAdPlayStarted:(NSNotification \*)  notification {
   // Fetch the PTAdinstance using PTMediaPlayerAdKey
   PTAd *ad = [notification.userInfo objectForKey:PTMediaPlayerAdKey];
   ...
   ...
}