Re: How To Increment CALayer Retain Count?
Re: How To Increment CALayer Retain Count?
- Subject: Re: How To Increment CALayer Retain Count?
- From: Mike Abdullah <email@hidden>
- Date: Thu, 07 Apr 2011 13:30:01 +0100
Have you run the static analyser?
Have you tested using the Zombies Instrument?
On 7 Apr 2011, at 12:15, Jeffrey Walton wrote:
> Hi All,
>
> I have a UIViewController as follows. Its just an "About Box", with a
> navigation bar and button (to cancel) and two labels.
>
> The controller was built with Interface Builder. The Navigation Bar
> and two labels are IBOutlets. According to IB, they are properly
> connected. I did not know what to connect the Navigation Items outlet
> to, so they are currently unconnected (formerly, they were connected
> to File's Owner which did not help).
>
> + File's Owner
> + First Responder
> + View
> + Navigation Bar
> + Navigation Item (Title)
> + Bar Button
> + Label 1
> + Label 2
>
> When the app starts, I tap a button and bring up the About box. Then I
> dismiss it. That is it.
>
> When the view is dismissed by tapping Cancel, NSZombie reports:
> -[UINavigationBar willMoveToSuperview:]: message sent to
> deallocated instance
>
> If I add an extra [???] retain to the navigationBar in ViewDidLoad,
> NSZombie Reports:
> -[CALayer release]: message sent to deallocated instance
>
> (1) How do I get to the CALayer and add an extra retain to stop this crash?
> (2) What am I missing WRT retain counts? Why are these retain counts
> so messed up?
>
> Jeff
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