I have a working XIB App to run a Linux VM with graphics interface. I am trying to rewrite it in SwiftUI but fall into all sorts of problems when using a combination of a Representable of the VZVirtualMachineView, an associated Coordinator, and @StateObjects.
a) The VM display is not updated when running but is displayed if I close the window and reopen it. As the underlying VZVirtualMachineView is created/dismantled many times, there are warnings about negative scanouts that end up crashing the App b) Keyboard focus is not really working.
https://developer.apple.com/forums/thread/766014 reports that there is probably a solution making a NSViewControllerReporesentable rather than a VZVirtualMachineViewRepresentable.
I think I am fighting against proper SwiftUI lifecycle and would love to have a hint at what shall be the right organization of model and SwiftUI constructs.
I think I am fighting against proper SwiftUI lifecycle
Very likely.
there is probably a solution making a NSViewControllerReporesentable
That’s definitely the path you should explore.
rather than a VZVirtualMachineViewRepresentable.
I’m not sure what VZVirtualMachineViewRepresentable is. It has the VZ prefix, suggesting that it’s from the Virtualization framework, but it’s not actually a class in that framework.
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