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Developer Tools Support / PreviewMacroBodyBuilder

Contents

Declaration
Overview
Topics

PreviewMacroBodyBuilder

Builder for preview body content within a #Preview macro.

Declaration

@resultBuilder struct PreviewMacroBodyBuilder<Content>

Overview

warning:

Using this builder outside of a #Preview macro will produce a fatal error.

Topics

Type Methods

buildBlock(_:)

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Developer Tools SupportStructure

iOS 17.0+iPadOS 17.0+Mac Catalyst 17.0+macOS 14.0+tvOS 17.0+visionOS 1.0+watchOS 10.0+

Declaration
Overview
Topics

Built on 2026-05-07