Pre-drawing a UIView

There is information that is only available after drawRect that I need to access when loading a UIView. Is there any way to do a "pre-draw" or offscreen in order to get this informat开发者_运维知识库ion earlier?

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The answer to this question is depends very much on what kind of information you want to get from the view.

Anyway: You can draw the view’s underlying layer into your own graphics context using [myView.layer renderInContext:myCtx]. That’s in the QuartzCore.framework, CALayer.h.