Re: New fences restrictions in CA?
Re: New fences restrictions in CA?
- Subject: Re: New fences restrictions in CA?
- From: Kyle Sluder <email@hidden>
- Date: Thu, 15 Jun 2017 00:09:58 -0500
On Tue, Jun 13, 2017, at 12:30 PM, Tedd Sperling wrote:
> Hi:
>
> I was setting up constraints for buttons in a calculator app when I
> received the following debug report:
>
> "Make a symbolic breakpoint at UIViewAlertForUnsatisfiableConstraints to
> catch this in the debugger.
> The methods in the UIConstraintBasedLayoutDebugging category on UIView
> listed in <UIKit/UIView.h> may also be helpful.
> 2017-06-13 11:20:34.634743 RunningCalculator[11558:1515658] [App] if
> we're in the real pre-commit handler we can't actually add any new fences
> due to CA restriction”
>
> My question is — What is with "if we're in the real pre-commit handler we
> can't actually add any new fences due to CA restriction”?
>
> I finally got my restraints correct, but that comment didn't help much in
> trying to solve the problem.
Fences are an internal Core Animation thing that helps synchronize
animations. You don’t need to be concerned about them, but please file a
bug report about this unhelpful log message.
--Kyle
>
> I’m using Xcode 8.2.1, (8C1002).
>
> Cheers,
>
> tedd
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