Re: center-y constant animation won't animate
Re: center-y constant animation won't animate
- Subject: Re: center-y constant animation won't animate
- From: David Duncan <email@hidden>
- Date: Mon, 04 Aug 2014 16:15:32 -0700
> On Aug 4, 2014, at 4:10 PM, Rick Mann <email@hidden> wrote:
>
> I'm setting the constant of a center-y-in-container constraint in a [UIView animateWith…] block, but it doesn't animate; it just jumps to the offset location. Any idea what I might be doing wrong? The code is pretty straightforward…
>
> https://pastee.org/edgsf
Constraints are like recipes for layout, they don’t perform the actual layout themselves. You need to force layout on the affected view (by calling -layoutIfNeeded on it) within the animation block to generate the animation.
> I tried calling -animateWithDuration directly, and enqueueing it on the main queue (as seen here). Same result.
>
> Any help would be much appreciated.
>
>
> --
> Rick Mann
> email@hidden
>
>
>
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David Duncan
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