ios - Should I remove notification for NSUbiquitousKeyValueStoreDidChangeExternallyNotification -

i using tutorial started:
http://www.raywenderlich.com/63269/how-to-save-your-game-data-tutorial-part-2-of-2

i have use it, implemented , test , working fine.

here found notification should removed in dealloc (at end of article)
http://subjective-objective-c.blogspot.com/2011/04/avoid-nsnotification-removeobserver.html

my question should remove notification nsubiquitouskeyvaluestoredidchangeexternallynotification? , in method ?

in general, notification, stop observing when no longer care notification. 1 case don't care more when object observing notification gets deallocated.

what second article telling removeobserver: not best choice. removes observer all notifications. includes notifications registered notifications frameworks use internally. article explains, it's better use removeobserver:name:object: explicitly unregister each notification. it's not telling you should unregister notifications in dealloc, it's telling you should unregister notifications using removeobserver: method in dealloc. that's advice, it's ok use other remove-observer methods wherever need use them.

that means want unregister in dealloc, depends on code , on when need receive notifications.