SwiftUI 视图存在 UIKit ViewController 错误

很多时候，我们需要打开一个需要在UIViewControllerSwiftUI 视图中呈现的视图。此类的突出示例UIDocumentInteractionController和不太突出的示例是 SwiftyDropbox，用于在 Safari 中打开 Dropbox 的登录屏幕进行身份验证。常见的技术是在子类中创建一个UIViewController按需的UIViewControllerRepresentable并从中呈现视图控制器。但它从来没有对我有用。

struct DropboxView: UIViewControllerRepresentable {
   typealias UIViewControllerType = UIViewController

   @Binding var isShown : Bool

   func updateUIViewController(_ uiViewController: UIViewController, context: Context)  {
    
     if isShown {
        let scopeRequest = ScopeRequest(scopeType: .user, scopes: ["files.content.write"], includeGrantedScopes: false)
  
        DropboxClientsManager.authorizeFromControllerV2(
            UIApplication.shared,
            controller: uiViewController,
            loadingStatusDelegate: nil,
            openURL: { (url: URL) -> Void in UIApplication.shared.open(url, options: [:], completionHandler: nil) },
            scopeRequest: scopeRequest)
       }
    }

   func makeUIViewController(context _: Self.Context) -> UIViewController {
       return UIViewController()
   }
}

当我使用修饰符从 SwiftUI 视图调用此类视图时，例如：

    .fullScreenCover(isPresented: $showDropboxLoginView) {
        DropboxView(isShown: $showDropboxLoginView)
    }

我收到两个错误：

Cannot use Scene methods for URL, NSUserActivity, and other External Events without using SwiftUI Lifecycle. Without SwiftUI Lifecycle, advertising and handling External Events wastes resources, and will have unpredictable results.

和

Attempt to present <SwiftyDropbox.MobileSafariViewController: 0x107919600> on <UIViewController: 0x105a2f130> (from <UIViewController: 0x105a2f130>) whose view is not in the window hierarchy.

我想知道如何从 SwiftUI 视图中呈现此类视图控制器？