ios notifications to "dead" objects
exc-bad-access, ios, nsnotificationcenter
Solution
If you are calling `addObserver` for items in your view, you need to call `removeObserver` during dealloc. Even with ARC.
Problem
I have a number of UIViews coming into view, then going out of view and being unused. However, I believe some of them are still receiving notifications even after they are gone wich is causing problems. On the UIView "parent" container: ``` if(self._content != nil && [self._content respondsToSelector:@selector(presentMe:)]) { [self._content presentMe:NO]; } ``` On the UIView "child": ``` [[NSNotificationCenter defaultCenter] <-- EXC_BAD_ACCESS (code=1, address=0x70000008 postNotificationName:PRESENTING object:self userInfo:[NSDictionary dictionaryWithObjectsAndKeys:[NSNumber numberWithBool:prepareToEnter], PRESENTING, nil]]; ``` Everything works the first time around, but if I launch the same view a second time I get an EXC_BAD_ACCESS. Doesn't that mean something is missing? FYI this is all in ARC - xcode 4.3.2