<!--
{
  "availability" : [
    "iOS: -",
    "iPadOS: -",
    "macOS: 26.0.0 -",
    "visionOS: 1.0.0 -"
  ],
  "documentType" : "symbol",
  "framework" : "SwiftUI",
  "identifier" : "/documentation/SwiftUI/OpenImmersiveSpaceAction/callAsFunction(id:)",
  "metadataVersion" : "0.1.0",
  "role" : "Instance Method",
  "symbol" : {
    "kind" : "Instance Method",
    "modules" : [
      "SwiftUI"
    ],
    "preciseIdentifier" : "s:7SwiftUI24OpenImmersiveSpaceActionV14callAsFunction2idAC6ResultOSS_tYaF"
  },
  "title" : "callAsFunction(id:)"
}
-->

# callAsFunction(id:)

Presents an immersive space for the scene with the specified identifier.

```
@discardableResult @MainActor func callAsFunction(id: String) async -> OpenImmersiveSpaceAction.Result
```

## Parameters

`id`

The identifier of the immersive space to present.

## Discussion

Don’t call this method directly. SwiftUI calls it when you call the
[`openImmersiveSpace`](/documentation/SwiftUI/EnvironmentValues/openImmersiveSpace) action with a string
identifier:

```
await openImmersiveSpace(id: "planet")
```

For information about how Swift uses the `callAsFunction()` method to
simplify call site syntax, see
[Methods with Special Names](https://docs.swift.org/swift-book/documentation/the-swift-programming-language/declarations/#Methods-with-Special-Names)
in *The Swift Programming Language*.

---

Copyright &copy; 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)