Re: removing all sublayers from a layer with fast enumeration
Re: removing all sublayers from a layer with fast enumeration
- Subject: Re: removing all sublayers from a layer with fast enumeration
- From: Nick Zitzmann <email@hidden>
- Date: Mon, 30 Nov 2009 12:36:51 -0700
On Nov 30, 2009, at 12:23 PM, Matt Neuburg wrote:
> To remove all sublayers from a layer, it is sufficient to set that layer's
> sublayers property to nil, so this code is completely unnecessary. But I'm
> just curious as to why it doesn't work:
>
> for (CALayer* sub in myview.layer.sublayers)
> [sub removeFromSuperlayer];
>
> This crashes as if the fast enumeration itself were somehow illegal. Why?
What happens if you try enumerating on a copy of the sublayer array? That's what I usually do in this situation...
Nick Zitzmann
<http://www.chronosnet.com/>
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