SwiftUI Navigation Link Issue Solution: Navigation Bar overlapped

isDetailLink.swift

import SwiftUI

struct ContentView: View {
  
  var body: some View {
    NavigationView {
      VStack {
        NavigationLink(destination: ChildView()) { Text("Child View") }
        .isDetailLink(false)
        /*
        If you don't add .isDetailLink(false) above,
        the title of the navigation bar in the child view with ".navigationBarBackButtonHidden(true)" will be overlapped
        on the navigation bar of the parent view,
        especially when you decide not to pop the child view and then make it back on the top.
        */

        Text("Parent View")
        
        
      } //: V
      
    } //: N
  }
  
}

struct ChildView: View {
  
  var body: some View {
    Text("Child View")
    .navigationBarBackButtonHidden(true)
  }
  
}

/*
If you don't add the extension below,
the back(pop) gesture in the child view of a parent view will never work,
when you make the back button hidden.
*/
extension UINavigationController: UIGestureRecognizerDelegate {
    override open func viewDidLoad() {
        super.viewDidLoad()
        interactivePopGestureRecognizer?.delegate = self
    }

    public func gestureRecognizerShouldBegin(_ gestureRecognizer: UIGestureRecognizer) -> Bool {
        return viewControllers.count > 1
    }
}