How to pop to root view via navigation stack in iOS 16 - swiftui

Question

As we know Apple have introduced NavigationStack in SwiftUI available from iOS16.*
Let say I have created ViewA, ViewB, ViewC, ViewD
And now I have navigated like ViewA->ViewB->ViewC->ViewD
Now I am looking to pop to root view i.e on ViewA from ViewD
Any help would be appreciated.

Answer 1

This worked for me but I can't find the url so I will just share the code. You can also try it out...
Create a file and add the following;
import Foundation
struct NavigationUtil {
static func popToRootView() {
DispatchQueue.main.asyncAfter(deadline: .now()) {
findNavigationController(viewController:
UIApplication.shared.windows.filter { $0.isKeyWindow
}.first?.rootViewController)?
.popToRootViewController(animated: true)
}
}
static func findNavigationController(viewController: UIViewController?)
-> UINavigationController? {
guard let viewController = viewController else {
return nil
}
if let navigationController = viewController as? UINavigationController
{
return navigationController
}
for childViewController in viewController.children {
return findNavigationController(viewController:
childViewController)
}
return nil
}
}
Then call this from anywhere in your code;
NavigationUtil.popToRootView()

Answer 2

if you are using swift ui (with iOS 16 or greater), I would suggest to use
// fill path with your navigation items as soon as you want to add a new path
#State var path: [Item] = []
// once done, you can manipulate this array of path as you need
// for example, if you want to popToRootController, you will do the following
var body: some View {
NavigationStack(path: $path) {
List(Items) { item in
// creates a navigation link
NavigationLink(item.name, value: item)
}
}
// this represents the destination for each link in the list
.navigationDestination(for: Item.self) { item in
VStack {
// Some View
// Add some action or event to empty path
// this is just an example
Button("PopToRoot") {
// what is similar to popToRootViewController
// in iOS 16 or above you just do
path = []
}
}
}
}
// NOTE:
path = [] // this is exactly similar to popToRootViewController