On Mon, Apr 5, 2010 at 3:08 AM, Jerry Krinock <je...@ieee.org> wrote: > I already use MAKVONotificationCenter in this project, but I don't see the > need for it here. In the array controller's -dealloc, > > [self removeObserver:self > forKeyPath:@"selectedObjects"] ; > > Why is that perilous? (It seems to work.)
Because if NSArrayController also self-observes on @"selectedObjects", you've removed that observation from under its feet. MAKVONotificationCenter and OFBinding solve this problem by creating separate objects, so they'll only ever register for a keypath once. --Kyle Sluder _______________________________________________ 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
