How to create Navigation in SwiftUI ?

iOS 16 onwards

User NavigationStack for top Header(NavView) & use NavigationLink for jump to next view –

struct NavigationViewExample: View {
    var body: some View {
        NavigationStack {
            VStack {
                NavigationLink {
                    Text("Click Here")
                } label: {
                    Text("Detail View")
                }
            }
            .navigationTitle("Navigation iOS 16")
        }
    }
}

Additionally you can use .navigationBarTitleDisplayMode(.inline) for lesser height NavigationBar

Use Of .navigationDestination

To jump with specific value use navigationDestination let me explain you in simple way by giving Genuine example –
Create a Hashable model in Swift – where  hash(into is used for Hashable conformance & static func == (lhs is for Equatable protocol & countryName is property

class CountryModel: Hashable, Equatable {
    
    static func == (lhs: CountryModel, rhs: CountryModel) -> Bool {
        lhs.countryName == rhs.countryName
    }
    
    func hash(into hasher: inout Hasher) {
        hasher.combine(countryName)
    }
    
    var countryName: String = ""
    
    init(title: String) {
        self.countryName = title
    }
}

Now we can use navigationDestination with CountryModel which is Hashable –

struct NavigationViewExample: View {
    let countryList: [CountryModel]
    var body: some View {
        
        NavigationStack {
            VStack(spacing: 30) {
                
               NavigationLink {
                    DetailView()
                } label: {
                    Text("A Simple Navigation")
                }
                
                NavigationLink(value: CountryModel.init(title: "India")) {
                    Text("Jump To India")
                }
                
                NavigationLink(value: CountryModel.init(title: "USA")) {
                    Text("Jump To USA")
                }
                
            }
            .navigationDestination(for: CountryModel.self, destination: { currentStuff in
                Text("Successfully entered in -> " + currentStuff.countryName)
            })
            
            .navigationTitle("Navigation Demo")
        }
    }
}

struct DetailView :View {
    
    var body: some View {
        Text("This is Detail View")
    }
}

Any suggestion ? comments are welcomed 👇🏽👇🏽👇🏽