universal application in Iphone -

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In order to convert applications to universal applications, I have to do design changes in xib files

One way to do this:

Go to Project-> Summary (in xcode4), set "Device "From" Universal "

Your Information In the Pleist, define two different .xib, one for iPhone and one for iPad: 

    
 And join them with your App Rep. The launcher will load the correct xib at startup.  
 If you are on the iPad, you can use  
  to check it (UI_USER_INTERFACE_IDIOM () == UIUserInterfaceIdiomPad) {/ code>  < P> or iPhone

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