iPhone Duo compatibility with existing app

UI Frameworks UIKit
arnaud-sch OP
Created 13h
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This post is from the Activity iPhone Duo UIKit Q&A.

I have an app mixing UIKit and SwiftUI. Right now it’s not yet migrated to SceneDelegate. What will happen when the iPhone Duo is available ? Will the app run, or crash ?

Answered by lazyvariable in 906425022

Your app will run fine but in a boxed layout (supposing you are not planning to adopt SceneDelegate that is required by Xcode 27).

Replies  2
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mashaf OP
13h

You are not able to run your app without adopting UIScene on iPhone Duo, it will run and crash when trying to load the first UI. (unless you got a device or simulator with iOS < 27, not sure this is possible)
lazyvariable OP
12h
Accepted Answer

Your app will run fine but in a boxed layout (supposing you are not planning to adopt SceneDelegate that is required by Xcode 27).

iPhone Duo compatibility with existing app
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