Is Core Animation causing my subviews to call -drawRect for every single frame?

Posted by mystify on Stack Overflow See other posts from Stack Overflow or by mystify
Published on 2010-04-10T18:58:32Z Indexed on 2010/04/10 19:03 UTC
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iphone

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core-animation

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Performance

I made a nice UIView subclass which paints all its stuff in -drawRect:, because people said that's good. That view is a subview of another. This another view is beeing animated with Core Animation: It's scaled down, rotated and moved. However, I encountered this: -drawRect seems to get called trillion of times during animation, and performance sucks.

Is that normal or did I do something wrong, probably?

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