从 SwiftUI 推送到 UIKit 后的导航栏项目 [英] Navigation Bar Items after push from SwiftUI to UIKit

问题描述

我有一个 SwiftUI NavigationView，我在其中推送到符合 UIViewController 的 UIViewControllerRepresentable.导航视图自然会添加后退按钮.但是，我在推到视图控制器中设置的所有导航栏按钮也不见了.

I have a SwiftUI NavigationView in which I push to a to UIViewControllerRepresentable conforming UIViewController. The navigation view naturally adds its back button. However, all navigation bar buttons that I set in the pushed-to view controller are also gone.

用于添加项目的代码并不新鲜，如果我从一个好的 UIKit 视图控制器推送，它就可以正常工作:

The code for adding the item is nothing new and works just fine if I push from a good ol' UIKit View Controller:

navigationItem.rightBarButtonItem = UIBarButtonItem(image: searchImage, style: .plain, target: self, action: #selector(filterItemTapped(button:)))

我的理论是他们没有在 NavigationView 和 UIViewController 的导航项之间建立桥接，但也许有人知道一种解决方法.

My theory is that they haven't wired up bridging between NavigationView and UIViewController's navigation items, but maybe somebody knows a workaround.

推荐答案

在你的 UIViewControllerRepresentable 中，用 UINavigationController 包裹你的 UIViewController.

In your UIViewControllerRepresentable, wrap your UIViewController with a UINavigationController.

struct CustomUIViewControllerRepresentation: UIViewControllerRepresentable {
    typealias UIViewControllerType = UINavigationController

    func makeUIViewController(context: Context) -> UINavigationController {
        let viewController = CustomUIViewController()
        let navigationController = UINavigationController(rootViewController: viewController)
        return navigationController
    }

    func updateUIViewController(_ uiViewController: UINavigationController, context: Context) {

    }
}

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