> Date: Fri, 19 Nov 2010 11:58:35 -0800 > From: Laurent Daudelin <laur...@nemesys-soft.com> > Subject: NSNotificationCenter not always working? > > Is there a way to debug why the same "postNotificationName:object:userInfo:" > would not work the second time it's called?
In a word - no. This is one of the worst aspects of NSNotificationCenter; I have complained about it many times, filed bugs, etc., and I suggest you do the same. In particular we need a way to ask the center what's registered with it, and for what. The last time I had a problem such as you describe, it turned out that my own code, far off in a different file, was unregistering me - so, the second time the notification was posted, I was no longer an observer. This was discovered essentially by simple reading all my code really carefully. In fact, by the time I figured it out, I had actually stopped using notifications in that project, because they were so hard to debug. I complained about this and did receive an interesting suggestion about breakpoints; but this is not as good as a simple ability to query the notification center would be. <http://www.cocoabuilder.com/archive/cocoa/157926-how-to-debug-notification-that-never-received.html> And of course a tiny misspelling in the name of a notification will get you too. This can be largely avoided by using a #define but people are often lazy about that. m._______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
