README.md

.navigationBarHidden(true) will not work with this code.

iOS 14.5

two conditions in ChildView

1. @Environment(.presentationMode) (line 20)
2. .navigationBarItems() (line 28 ... 32)

then .navigationBarHidden(true) (line 43 in GrandChildView) will not work

ContentView.swift

import SwiftUI

struct ContentView: View {
  var body: some View {
    NavigationView{
      
      VStack{
        Text("Hello, Home!")
          .padding()
        NavigationLink(destination: ChildView()) { Text("go to child view") }
      }.navigationTitle("Home")
    }
    
  }
}



struct ChildView: View {
  @Environment(\.presentationMode) var presentationMode : Binding<PresentationMode>

  var body: some View {
    VStack{
      Text("Hello, Child!")
        .padding()
      NavigationLink(destination: GrandChildView()) { Text("go to grand child view") }
    }.navigationTitle("Child")
    .navigationBarItems(trailing: Button(action:{
      print("more")
    }, label: {
      Image(systemName: "ellipsis.circle")
    }))
  }
}

struct GrandChildView: View{
  var body: some View {
    VStack{
      Text("Hello, Grandchild!")
        .padding()
      
    }.navigationTitle("Grandchild")
    .navigationBarHidden(true)
  }
}