Re: Can I tell which object is retaining my window?
Re: Can I tell which object is retaining my window?
- Subject: Re: Can I tell which object is retaining my window?
- From: Drarok Ithaqua <email@hidden>
- Date: Mon, 31 Jul 2006 19:46:03 +0100
It's It's definitely not my own now. I've got my app to run
perfectly, but as soon as I add the 3rd party NSProgressIndicator in,
I get a ton of retain/releases, and my window doesn't dealloc.
A retain cycle sounds like the right term, it seems like an almost
infinite loop, but if I set the focus to another app, then back to mine,
the window is dealloced and the massive loop of retain/releases stops.
On 31 Jul 2006, at 7:32 pm, Shawn Erickson wrote:
On 7/31/06, Drarok Ithaqua <email@hidden> wrote:
It's definitely the NSProgressIndicator subclass - it uses
NSNotifications to inform the app what's going on.
It appears that the NSNotification is retaining the window?!
Again what is the issue you are hitting... seeing retain/release sent
to an object while your application runs is to be expected. It is also
expected that NSNotification will retain the object related to the
notification and release that object once all listeners of that
notification have had a chance to process the notification.
Using ObjectAlloc you should be able to work out which retain is the
one that appears to be unbalanced if you are having an issue with your
window not going away... to me it sounds like some third party code
(or your own) is retaining your window and causing a retain cycle (for
example a view in a window shouldn't retain its window).
Review... <http://developer.apple.com/documentation/Cocoa/
Conceptual/MemoryMgmt/Concepts/ObjectOwnership.html#//apple_ref/doc/
uid/20000043-1044135>
-Shawn
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