How to use or replace 'UIViewControllerRepresentable' in SkipFuse.

[k-kawamata-2025]

When building SkipTools with SkipFuse in nativemode, if you're monitoring the lifecycle of a UIViewController using SwiftUI UIViewControllerRepresentable, it appears that class is not supported by SkipTools.

Therefore, it seems necessary to either use other SwiftUI classes or classes from SkipTools libraries, or use Jetpack Compose and utilize the class that replaces UIViewController, monitoring that class within ComposeContent. Is there a better approach?
Thank you in advance.

[marcprux]

Can you elaborate some more on your setup? Skip doesn't impose any restrictions on the iOS side of the app: UIKit and SwiftUI will work exactly the same way as always, since Skip doesn't intermediate those libraries at all. It is only when you are building the Android side that you may encounter limitations, including that we don't have any support for UIViewController (or most other UIKit types). In these cases, you would indeed need to monitor lifecycle differently, ideally through the SwiftUI View's methods, but possibly by dropping down into Compose and implementing it in Kotlin (see the Compose Integration docs).

You may also want to look at our WebView implementation, which demonstrates implementing a view that uses a UIViewController on the iOS side and implements it manually on the Android side.

I hope that helps. If I have misunderstood how your app or library is configured, please provide some more details and we can help find the best solution.

[k-kawamata-2025]

Thank you. There is no misunderstanding regarding your understanding or response.
I had hoped to rewrite the parts that previously used UIViewController on iOS (including lifecycle monitoring) using SwiftUI's View functionality, avoiding the use of #if !SKIP sections as much as possible and instead utilizing the bridge via Skip.
I had assumed this wasn't feasible, and I wanted to ask how to manually implement it on Android if necessary. For now, please allow me to refer to the WebView implementation example.
I still can't quite visualize how to manually implement lifecycle monitoring on Android. I may have further questions later, so if possible, I would appreciate your assistance then as well.