Safely access environment objects in SwiftUI #swiftui

OptionalEnvironmentExample.swift

import SwiftUI

// MARK: - Safe environment access example
struct LibraryView: View {
    // Retrieves a non-optional environment value; throws if not set
    @Environment(Library.self) private var library

    var body: some View {
        // Your view content here
        Text("Library loaded: \(library.name)")
    }
}

// MARK: - Safe optional variant
struct SafeLibraryView: View {
    // Retrieves an optional environment value; returns nil if missing
    @Environment(Library.self) private var library: Library?

    var body: some View {
        if let library {
            Text("Library: \(library.name)")
        } else {
            Text("Library unavailable")
                .foregroundStyle(.secondary)
        }
    }
}

// Example model
struct Library {
    let name: String
}