How to access a SwiftUI view from its parent UIViewController?

Question

I am using a SwiftUI view from a UIViewController using UIHostingController.

This is not working:

viewController.contentView.first as? SwiftUIView

Because it's not a SwiftUI view anymore, but a UIView.

Is it possible to get back the SwiftUI view from the UIViewController?

Answer 1

Just save the reference on a view controller's variable to the SwiftUI view when you create it.

class ViewController: UIViewController {
  // Store the reference to the SwiftUI view after creating it.
  var swiftUiView: SwiftUiView?
  // ...
}