#484: scoping issues with notification center
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Reporter: mattaimone...@… | Owner: lsansone...@…
Type: defect | Status: closed
Priority: blocker | Milestone:
Component: MacRuby | Resolution: invalid
Keywords: |
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Comment(by lsansone...@…):
It's actually documented.
http://developer.apple.com/mac/library/documentation/Cocoa/Reference/Foundation/Classes/NSNotificationCenter_Class/Reference/Reference.html
"Important: The notification center does not retain its observers,
therefore, you must ensure that you unregister observers (using
removeObserver: or removeObserver:name:object:) before they are
deallocated. (If you don't, you will generate a runtime error if the
center sends a message to a freed object.)"
MacRuby uses Objective-C in GC mode so retain will not help since it's a
no-op. You must keep a reference to the observer by yourself. Typically
this isn't such a problem in Cocoa apps since the observer is generally a
controller object (self). Maybe you should re-design your program.
--
Ticket URL: <http://www.macruby.org/trac/ticket/484#comment:3>
MacRuby <http://macruby.org/>
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