# AppExtensionSceneConfiguration An object you use to configure an app extension that provides a custom UI. ``` @MainActor @preconcurrency struct AppExtensionSceneConfiguration ``` ## Overview Use this type to provide the configuration details for an type when the corresponding app extension provides a custom UI. ## Topics ### Creating the configuration [`init(@autoclosure () -> Content)`](/documentation/ExtensionKit/AppExtensionSceneConfiguration/init(_:)) Creates a scene configuration from a closure. [`init(@autoclosure () -> Content, configuration: Configuration?)`](/documentation/ExtensionKit/AppExtensionSceneConfiguration/init(_:configuration:)) Creates a scene configuration object from a closure and extension configuration. ### Accepting a connection to the host app [`func accept(connection: NSXPCConnection) -> Bool`](/documentation/ExtensionKit/AppExtensionSceneConfiguration/accept(connection:)) A closure the framework calls when a host tries to connect to this extension. ## Relationships ### Conforms To [`SendableMetatype`](/documentation/Swift/SendableMetatype) [`Sendable`](/documentation/Swift/Sendable) [`AppExtensionConfiguration`](/documentation/ExtensionFoundation/AppExtensionConfiguration) --- 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)