draw - How to know the screen is fully drawn in iOS -

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I'm pulling my hands free of the code mentioned in the link below.

Now, I can draw the curve but what I want is to display a warning once the view is completely ready with curves. Any help appreciated

So far, what have I done that I received CGPET color. But I'm not sure how once I know the colors of CGP, how can I add this situation.

I do not know, do you want to win the CRPO, but I would like to do what you want to do Want: 

  - (zero) Draw intact: (CGRact) Rect {[Super Draw Inward: Rectangle]; // are doing your drawing [self-doStuffAfterDrawing]; } - (zero) doStuffAfterDrawing {// Here you can launch your alerts}

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