SwiftUI NavigationView navigationBarTitle LayoutConstraints issue

NavigationBarTitle is deprecated from iOS 14.3 https://developer.apple.com/documentation/swiftui/view/navigationbartitle(_:displaymode:)-8buvp

You can use NavigationTitle and .navigationViewStyle(StackNavigationViewStyle())

import SwiftUI

struct HomeView: View {
    var body: some View {
        NavigationView {
            Text("Text")
                .navigationBarTitle("Hey there", displayMode: .inline)
        }
        .navigationViewStyle(StackNavigationViewStyle())
    }
}

NavigationBarTitle is deprecated from iOS 14.3. However if you still wish to use it, try to add .navigationViewStyle(StackNavigationViewStyle()) on the navigationView that will fix the warning.

       struct ContentView: View {
        var body: some View {
            NavigationView {
                VStack {
                    Text("Hello, world!")
                        .padding()
                    Spacer()
                }
                .navigationBarTitle("Hey there", displayMode: .inline)
            }
            .navigationViewStyle(StackNavigationViewStyle())
        }
    }

The new way:

.navigationBarTitleDisplayMode(.inline)
.toolbar(content: {
     ToolbarItem(placement: .principal, content: {
     Text("Title")
  })})    

It had nothing to do with NavigationBarTitle. .navigationTitle is not deprecated. Seems the whole issue is mainly with the new Xcode 12.4 update, even for simple code:

var body: some View {
    NavigationView{
        Text("Hopefully will work this time")
            .navigationTitle("Error with constains")
    }
}

adding .navigationViewStyle(StackNavigationViewStyle()) fixes problem

var body: some View {
    NavigationView{
        Text("Yes it does!")
            .navigationTitle("Wow it works")
    }
    .navigationViewStyle(StackNavigationViewStyle())
}

Xcode 13.0 Beta 1

This is still causing a contraint error unless you add the StackNavigationViewStyle modifier.

However, the documentation for StackNavigationViewStyle states:

Do not use this type directly. Instead, use stack.

var body: some View {
    NavigationView {
        Text("Text")
            .navigationTitle("Title")
    }
    .navigationViewStyle(.stack)
}