snapshot(contentType:)

Declaration

@MainActor func snapshot(contentType: UTType) async throws -> sending Self.Writer.Snapshot

Parameters

• contentType:

  The format requested (one of Writablecontenttypes).

Discussion

SwiftUI calls this on the main actor when a save is needed. Keep this method lightweight — return a value that represents what to save, and perform actual serialization in write(snapshot:to:previous:progress:).

See Also

Writing a document

• writableContentTypes
• WritableDocument.WriteConfiguration
• Writer
• writer(configuration:)