Question 67638 in IOS Swift Question posted in
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How Pop back to specific ViewController(UIKit) from SwiftUI view – Ios swift

I have three controllers and one swiftUI view, below is the flow

A Controller(RootController) -> B controller – > C controller -> SwiftUI view

I am doing some operation on the SwiftUI view based on the operation need to decide to whether pop back to C controller or B. Currently I am able pop back to C Controller and root controller, not sure how to jump to specific (in my case B controller)controller in SwiftUI

.navigationBarItems(leading:Button(action: {
            self.presentationMode.wrappedValue.dismiss()
        })

I mean to say instead of this line self.presentationMode.wrappedValue.dismiss() is there any method to pass view controller to pop back

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2

Answers


  1. 0

    You can make an extension for UINavigationController

    extension UINavigationController {
  func popToViewController(ofClass: AnyClass, animated: Bool = true) {
    if let vc = viewControllers.last(where: { $0.isKind(of: ofClass) }) {
      popToViewController(vc, animated: animated)
    }
  }
}

    and use it like this

     func goBack() {
        navigationController?.popToViewController(ofClass:  UIHostingController<SomeSwinftUIView>.self) // if this is a swuftUI view
}

    or

     func goBack() {
    navigationController?.popToViewController(ofClass: SomeViewController.self)
    
    }
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  2. 0

    @OhStack just import UIKit (Personally i’m using a router/coordinator for navigation, and there I include UIKit)

    import UIKit
import SwiftUI

struct SwiftUIViewCoordinator {
     let navController: UINavigationController?
     
     func startView(navController: UINavigationController) {
           self.navController = navController
           let swiftUIView = SwifUIViewView(router: self)
           let hostingView = UIHostingController(rootView: swiftUIView)
           navigationController?.pushViewController(hostingView, animated: true)
     }

     func goBackToSomeView() {
        navigationController?.popToViewController(ofClass:  
        UIHostingController<SomeSwinftUIView>.self) 
      }
}
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