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Re: How do I get CAScrollLayer to draw its sublayers

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Re: How do I get CAScrollLayer to draw its sublayers

Subject: Re: How do I get CAScrollLayer to draw its sublayers
From: David Duncan <email@hidden>
Date: Mon, 22 Sep 2008 10:52:54 -0700

On Sep 21, 2008, at 3:39 PM, Cesar Alaniz wrote:

I have set up a CAScrollLayer with one sublayer, in this case a CATiledLayer. The documentation say's that CATiledLayer will call drawLayer:(CALayer*)layer inContext:(CGContextRef) ref as the layer is needed to be drawn. I cannot see this method being called currently. My CAScrollLayer, the superlayer has setNeedsDisplayOnBoundsChange set to YES and a delegate set to draw the content. The delegate method drawLayer inContext for the scroll layer is being called. Do i need to do something special to make it redraw CATiledLayer's layer?

You need to call -setNeedsDisplay on the tiled layer. Doing so on the scroll layer will only affect its own contents. -- David Duncan Apple DTS Animation and Printing

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  >How do I get CAScrollLayer to draw its sublayers (From: Cesar Alaniz <email@hidden>)




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