_RealityKit_SwiftUI · IOS API REFERENCE

RealityViewLayoutOption

struct · iOS 26.0+ · SDK 27.1

struct RealityViewLayoutOption

Options that specify the frame sizing and content alignment option for `RealityView`. Pass in a `RealityViewLayoutOption` when using the <doc://com.apple.documentation/documentation/swiftui/view/realityviewlayoutbehavior(_:)> modifier: ```swift struct ModelWrapperView: View { let modelName: String var body: some View { RealityView { content in let model = try? await Entity(named: modelName) if let model { content.add(model) } } .realityViewLayoutBehavior(.fixedSize) } } ```

Members (3)

get · iOS 26.0+

centered

TypeScript

static get centered(): RealityViewLayoutOption

Swift declaration

static let centered: RealityViewLayoutOption

The option that centers the visual content within a flexible frame.

get · iOS 26.0+

flexible

TypeScript

static get flexible(): RealityViewLayoutOption

Swift declaration

static let flexible: RealityViewLayoutOption

The option that applies the default layout behavior of `RealityView`, where the content is not centered and the frame is flexible (takes up as much space as the SwiftUI layout provides).

get · iOS 26.0+

fixedSize

TypeScript

static get fixedSize(): RealityViewLayoutOption

Swift declaration

static let fixedSize: RealityViewLayoutOption

The option that fixes the size of the frame to equal the size of the visual content and centers the content within the new frame size.

Skipped declarations

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