popToRoot.swift

//

import SwiftUI

extension Notification.Name {
  static let popEverything = Notification.Name("pop_everything")
}

struct MoreTabView: View {
  @State var triggerNext: Bool = false
  @State var allowNavigationLinks: Bool = true

  var body: some View {
    VStack {
      NavigationLink(
        destination: View2(),
        isActive: $triggerNext) {
          Text("tap1")
      }.isDetailLink(false)
    }.onReceive(NotificationCenter.default.publisher(for: .popEverything)) { _ in
      self.triggerNext = false
    }
  }
}

struct View2: View {
  @State var showingNext: Bool = false

  var body: some View {
    VStack {
      NavigationLink(destination: View3(), isActive: $showingNext) {
        Text("tap2")
      }
    }
  }
}

struct View3: View {
  var body: some View {
    VStack {
      Button(action: {
        NotificationCenter.default.post(name: .popEverything, object: nil)
      }) {
        Text("last tap")
      }
    }
  }
}