Re: CALayer -drawInContext and GCD
Re: CALayer -drawInContext and GCD
- Subject: Re: CALayer -drawInContext and GCD
- From: David Duncan <email@hidden>
- Date: Thu, 2 Sep 2010 08:52:58 -0700
On Sep 2, 2010, at 7:39 AM, Vincent Habchi wrote:
> I just wanted to know someone has already tried to successfully send a CALayer -drawInContext method to a GCD dispatch queue. I suspect this is not possible, because of main loop related issue, but this is unclear.
This can be done, but you have to ensure that your layer's drawing is threadsafe. Should be as simple as this with that precondition met:
dispatch_async(queue, ^{
[layer display];
[CATransaction flush];
}
--
David Duncan
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