Environment values example.

ContentView.swift

//
//  ContentView.swift
//  EnvironmentExample
//
//  Created by VAndrJ on 4/18/25.
//

import SwiftUI

enum Destination {
    case openURL
    case environment
}

struct ContentView: View {
    var body: some View {
        NavigationStack {
            List {
                NavigationLink("openURL example", value: Destination.openURL)
                NavigationLink("EnvironmentValues example", value: Destination.environment)
            }
            .navigationDestination(for: Destination.self) { destination in
                switch destination {
                case .openURL: OpenURLExampleView()
                case .environment: EnvironmentExampleView()
                }
            }
        }
    }
}

struct OpenURLExampleView: View {
    @Environment(\.openURL) private var openURL

    var body: some View {
        let _ = Self._printChanges()
        VStack {
            Button("Open URL") {
                openURL(.example)
            }
            SomeView()
        }
    }
}

struct EnvironmentExampleView: View {
    @Environment(\.self) private var environment

    var body: some View {
        let _ = Self._printChanges()
        VStack {
            Button("Open URL") {
                environment.openURL(.example)
            }
            SomeView()
        }
    }
}

struct SomeView: View {
    init() {
        print(#function, Self.self, UUID())
    }

    var body: some View {
        Text("SomeView")
    }
}

extension URL {
    static let example = URL(string: "https://tinyurl.com/mpkrupzs")!
}