Re: [iPhone] custom CALayer drawing
Re: [iPhone] custom CALayer drawing
- Subject: Re: [iPhone] custom CALayer drawing
- From: Bob Barnes <email@hidden>
- Date: Thu, 11 Feb 2010 16:39:54 -0800
Have you tried calling setNeedsDisplay on the view? You need to request that a view redraw when the data or state used for drawing a view changes.
Bob
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:
>
> - (void)drawInContext:(CGContextRef)theContext
> {
> NSLog(@"drawInContext called");
> }
>
> Then in the viewDidLoad method of my view controller I have this:
>
> CustomLayer *lines = [CustomLayer layer];
> [self.view.layer addSublayer:lines];
>
> However, the drawInContext method is never called. What am I doing wrong here?_______________________________________________
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