I know I can't say myView.frame.origin.x = val - But why ?

Posted by Allisone on Stack Overflow See other posts from Stack Overflow or by Allisone
Published on 2010-06-06T10:20:27Z Indexed on 2010/06/06 10:22 UTC
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Filed under:

iphone

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objective-c

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uiview

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frame

I know that I can't use that

myView.frame.origin.x = 25.0;

that I have to use instead

CGRect myFrame = myView.frame;
myFrame.origin.x = 25.0;
myView.frame = myFrame;

And I'm doing it all the time (f.e. in animations), but I don't know why I must do it that way. I would like to fill that gap in my understanding. Can someone explain ?

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