---
title: "buildBlock(_:_:_:_:)"
framework: extensionkit
role: symbol
role_heading: Type Method
path: "extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:)"
---

# buildBlock(_:_:_:_:)

Builds an extension scene by combining four scenes.

## Declaration

```swift
@MainActor @preconcurrency static func buildBlock<C0, C1, C2, C3>(_ c0: C0, _ c1: C1, _ c2: C2, _ c3: C3) -> some AppExtensionScene where C0 : AppExtensionScene, C1 : AppExtensionScene, C2 : AppExtensionScene, C3 : AppExtensionScene

```

## See Also

### Building the scene’s content

- [buildBlock(_:)](extensionkit/appextensionscenebuilder/buildblock(_:).md)
- [buildBlock(_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:).md)
- [buildBlock(_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:).md)
- [buildBlock(_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:).md)
- [buildBlock(_:_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:_:).md)
- [buildBlock(_:_:_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:_:_:).md)
- [buildBlock(_:_:_:_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:_:_:_:).md)
- [buildBlock(_:_:_:_:_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:_:_:_:_:).md)
- [buildBlock(_:_:_:_:_:_:_:_:_:_:)](extensionkit/appextensionscenebuilder/buildblock(_:_:_:_:_:_:_:_:_:_:).md)