Memory management puzzle
Memory management puzzle
- Subject: Memory management puzzle
- From: DKJ <email@hidden>
- Date: Wed, 26 Nov 2008 18:49:57 -0800
I've got something this in my code, which is run several times by the
app:
UIView *subView = [[MyView alloc] initWithFrame:frame];
[theView addSubview:subView];
[subView release];
Later on this happens:
[subView removeFromSuperView];
subView = nil;
These two code snippets are in different controller methods. I'm
certain they're called the same number of times.
The docs say that subView gets a release message when
removeFromSuperview is called. But the NSLog statement I put in the
dealloc method for MyView is never called. The ObjectAlloc instrument
shows the count of MyView instances increasing by 1 each time the code
is run. And the Leaks instrument shows no leaks at all.
Just to see what would happen, I put [subView release] after the call
to removeFromSuperview. My NSLog statement was then called twice; and
of course I got an EXC_BAD_ACCESS as well.
I really want to get rid of these subView objects. Why aren't they
being deallocated? And since they're not, why am I not getting any
leaks when I set subView = nil?
dkj
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