UKit Memory Leak

[QQGuang]

Hello everyone,

I just used instrument to check memory leak for my app on device(3G, ios version is 3.1.2). I found there are several leaks displayed in instrument. The instrument output as following:

Leaked Object # Address Size Responsible Library Responsible Frame
GeneralBlock-16 2 < multiple > 32 UIKit -[UIViewAnimationState animationDidStart:]
GeneralBlock-16 2 < multiple > 32 UIKit -[UIViewAnimationState animationDidStart:]
GeneralBlock-16 0x163be0 16 UIKit -[UITransitionView _didStartTransition]
GeneralBlock-16 0x160730 16 UIKit -[UITableView(UITableViewInternal) _sectionHeaderViewWithFrame:forSectionpaque:reus eViewIfPossible:]
GeneralBlock-16 0x157060 16 UIKit -[UIScrollView(Static) _startTimer:]
GeneralBlock-16 0x148480 16 UIKit -[UIScrollView _endPanWithEvent:]
GeneralBlock-16 0x13d570 16 UIKit -[UINavigationBar pushNavigationItem:]
GeneralBlock-16 0x13c8b0 16 UIKit -[UIScrollView _updatePanWithStartDelta:event:gesture:ignoringDir ectionalScroll:]
GeneralBlock-16 0x132240 16 UIKit -[UINavigationTransitionView transition:fromView:toView:]
GeneralBlock-16 0x126ec0 16 UIKit -[UINavigationBar popNavigationItem]
GeneralBlock-16 0x11ad50 16 UIKit -[UITableViewCell _saveOpaqueViewState:]



Most of leaked objects comes from UIKit (responsible library is UIKit), I'm not sure whether I need clear them or it makes no difference. Are the leaks are serious issue? If I must fix them how to do it, because I cannot find the trace(responsible library is not my app). Thanks in advance!

[QQGuang]

Originally Posted by QQGuang

Hello everyone,

I just used instrument to check memory leak for my app on device(3G, ios version is 3.1.2). I found there are several leaks displayed in instrument. The instrument output as following:

Leaked Object # Address Size Responsible Library Responsible Frame
GeneralBlock-16 2 < multiple > 32 UIKit -[UIViewAnimationState animationDidStart:]
GeneralBlock-16 2 < multiple > 32 UIKit -[UIViewAnimationState animationDidStart:]
GeneralBlock-16 0x163be0 16 UIKit -[UITransitionView _didStartTransition]
GeneralBlock-16 0x160730 16 UIKit -[UITableView(UITableViewInternal) _sectionHeaderViewWithFrame:forSectionpaque:reus eViewIfPossible:]
GeneralBlock-16 0x157060 16 UIKit -[UIScrollView(Static) _startTimer:]
GeneralBlock-16 0x148480 16 UIKit -[UIScrollView _endPanWithEvent:]
GeneralBlock-16 0x13d570 16 UIKit -[UINavigationBar pushNavigationItem:]
GeneralBlock-16 0x13c8b0 16 UIKit -[UIScrollView _updatePanWithStartDelta:event:gesture:ignoringDir ectionalScroll:]
GeneralBlock-16 0x132240 16 UIKit -[UINavigationTransitionView transition:fromView:toView:]
GeneralBlock-16 0x126ec0 16 UIKit -[UINavigationBar popNavigationItem]
GeneralBlock-16 0x11ad50 16 UIKit -[UITableViewCell _saveOpaqueViewState:]



Most of leaked objects comes from UIKit (responsible library is UIKit), I'm not sure whether I need clear them or it makes no difference. Are the leaks are serious issue? If I must fix them how to do it, because I cannot find the trace(responsible library is not my app). Thanks in advance!

The nszombie disabled, but instrument has the same result.

[SoulRed12]

Expand the right panel and it'll tell you the stack trace for each leak. See if any of the leaks go through your code (other than the "start" and "main") and check those parts to see if there's a leak in any of them. If there isn't, it's probably not your fault and you can likely just ignore them.