# init(_:widget:relevanceEntries:) Creates a preview of a relevance-driven widget. ``` @MainActor init(_ name: String? = nil, widget: @escaping () -> some Widget, @PreviewRelevanceEntryBuilder relevanceEntries: @escaping @MainActor () async -> [Entry]) where Entry : RelevanceEntry ``` ## Discussion The `#Preview` macro expands into a declaration that calls this initializer. To create a preview that appears in the canvas, you must use the macro, not instantiate a Preview directly. --- 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)