# init(_:item:subject:message:preview:) Creates an instance, with a custom label, that presents the share interface. ``` @export(implementation) nonisolated init(_ titleResource: LocalizedStringResource, item: I, subject: Text? = nil, message: Text? = nil, preview: SharePreview) where Data == CollectionOfOne, I : Transferable ``` ## Parameters `titleResource` A resource for the title of the share action. `item` The item to share. `subject` A title for the item to show when sharing to activities that support a subject field. `message` A description of the item to show when sharing to activities that support a message field. Activities may support attributed text or HTML strings. `preview` A representation of the item to render in a preview. --- 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)