title: Is NSNotificationCenter related to Push Notifications?
body: <p>I am trying to use NSNotificationCenter to register some notification observers in my iOS app. Is NSNotificationCenter related to Push Notifications? I think it is not, but I want to get some confirmation.</p>
  
  <p>If I use NSNotificationCenter, do I need to do any additional thing?</p>
  
  <p>In Certificates, Identifiers &amp; Profiles in Apple developer member center, every app ID has an application service that is Push Notifications. The service is configured as enabled or disabled. I think that if I use NSNotificationCenter, I don't need to set that service enabled. Am I correct?</p>