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Editorial Team
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Asked: 2026-05-25T23:36:15+00:00

I’ve just finished my app for iPhone and it is working fine. I now

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I’ve just finished my app for iPhone and it is working fine. I now want to make the app universal but am getting a black screen when running it on the iPad simulator. Here is what I have done so far:

  • When electing to make universal, I allowed xCode to create my “-iPad” version of my main nib; Therefore, I have MainWindow.xib for iPhone and MainWindow-iPad.xib for iPad. I have checked my plist file and have confirmed that both entries are present
  • Have double checked each UI component in the new iPad version to make sure all connections are made identically to the iPhone version. I also double check that the classes are correct
  • I have made sure that the “visible at launch” and “full screen at launch” options are selected
  • I read somewhere that removing the “-” worked for someone and have tried renaming my nib and plist entries

I am assuming that my app would then load the proper nib. Obviously I’m either wrong or have some configuration not right

On the other hand, if I need to make some change in my didFinishLoadingWithOptions to force they selection between my nibs – well I must admit I don’t know how to accomplish this either.

Thanks!

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  1. Editorial Team

    OK, after much trial and error, I have gotten this to work; Although, I’m not quite sure which exact steps solved the problem, I have a sneaking feeling it was some of the settings I had for the versioning of the app.

    I created a new test app for iPhone and then converted it to iPad. Of course this worked unlike my app. I then compared everything I could think of between the apps. I changed the supported version from 3.1 to 4.0 on the Target -> Summary tab. I then check my build settings and changed everything in there to 4.0 as well. Finally, for each .xib file I set the deployment to “Project SDK Version (iOS 4.3) and the Development to “Interface Builder 3.1” because that is what my test app was set to. To be honest, I don’t even recall altering these or do I really even know if this has an impact all I know is that I did change them as described. Did a project clean, reset the simulator and now it is working. I’m wondering if it was the 3.1 was too early for the iPad…

    Anyway thanks.

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