Re: [iPhone] custom CALayer drawing
Re: [iPhone] custom CALayer drawing
- Subject: Re: [iPhone] custom CALayer drawing
- From: PCWiz <email@hidden>
- Date: Thu, 11 Feb 2010 17:50:53 -0700
Yep, I just tried that (sent a reply a minute ago) but the drawInContext: method still isn't being called.
Independent Cocoa Developer, Macatomy Software
http://macatomy.com
On 2010-02-11, at 5:47 PM, David Duncan wrote:
> On Feb 11, 2010, at 3:44 PM, PCWiz wrote:
>
>> I'm trying to do some custom drawing in a CALayer subclass by overriding the drawInContext: method, but it appears that its not being called. In my subclass I just have this:
>>
>> However, the drawInContext method is never called. What am I doing wrong here?
>
> Layers (unlike views) start life validated. You need to call the layer's -setNeedsDisplay method for your -drawInContext: method to be called, so you should add a [lines setNeedsDisplay] call at some point.
> --
> David Duncan
> Apple DTS Animation and Printing
>
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