CALayer and Quartz Transparency

Posted by Brian on Stack Overflow See other posts from Stack Overflow or by Brian
Published on 2010-03-30T04:09:21Z Indexed on 2010/03/30 4:13 UTC
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Filed under:

uikit

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quartz

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iphone

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calayer

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core-animation

I have a CALayer subclass. I have overridden the drawInContext method. I want the majority of my layer to be transparent except a few areas. I'm using the layer as a menu and I want the icons and labels on the menu to be opaque.

Is it possible to have a CALayer's sublayers be opaque if the super CALayer is transparent?

Is it possible to draw opaque tems in the drawInContext method of a transparent CALayer? I have tried using CGContextSetAlpha, but I assume it doesn't work since the CALayer that I am drawing for is transparent.

As always, any help would be great.

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