Make iPad app a Universal app

Posted by Peter Hajas on Stack Overflow See other posts from Stack Overflow or by Peter Hajas
Published on 2010-06-02T05:56:37Z Indexed on 2010/06/02 6:04 UTC
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iphone

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iphone-sdk-3.0

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ipad

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iphone-sdk-3.2

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uidevice

I have an iPad app that I would like to make Universal, however this seems alarmingly difficult. I've changed things around so that I support both builds, but when building, I get lots of errors about using UIPopOvers. Here're my questions:

Why does UI_USER_INTERFACE_IDIOM() not compile or register on 3.1.3?
Can I conditionally have variables in a class definition based on UI_USER_INTERFACE_IDIOM()?
If not, should I make two different view controllers?

Thanks!

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