# init(id:for:content:defaultValue:) Creates the immersive space associated with an identifier for a specified type of presented data, and a default value, if the data is not set. ``` nonisolated init(id: String, for type: Data.Type = Data.self, @ImmersiveSpaceContentBuilder content: @escaping (Binding) -> Content, defaultValue: @escaping () -> Data) ``` ## Parameters `id` A string that uniquely identifies the immersive space. Ensure that identifiers are unique among the immersive spaces in your app. `type` The type of presented data this immersive space accepts. `content` An immersive space content builder that defines the content for each instance of the immersive space. The closure receives a binding to the value that you pass to the [`openImmersiveSpace`](/documentation/SwiftUI/EnvironmentValues/openImmersiveSpace) action when you call that action to open an immersive space. The system automatically persists and restores the value of this binding during state restoration. `defaultValue` A closure that returns a value that SwiftUI presents when it doesn’t receive one from you, like when you call the [`openImmersiveSpace`](/documentation/SwiftUI/EnvironmentValues/openImmersiveSpace) action without providing a value. ## Discussion The space uses the specified content builder to form the content. Your app invokes this initializer when it presents a value of the specified `type` using the [`openImmersiveSpace`](/documentation/SwiftUI/EnvironmentValues/openImmersiveSpace) action. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)