init(make:update:placeholder:)

Declaration

nonisolated init<P>(make: @escaping @MainActor @Sendable (inout RealityViewCameraContent) async -> Void, update: (@MainActor (inout RealityViewCameraContent) -> Void)? = nil, @ViewBuilder placeholder: () -> P) where Content == RealityViewCameraContent.Body<P>, P : View

Parameters

• make:

  An asynchronous closure that configures the initial content of the new RealityView. This closure is asynchronous to keep your app’s UI responsive while you load content to populate this view.

• update:

  An optional closure that updates the RealityView instance’s content as the view’s state changes.

• placeholder:

  A temporary view that the Realityview displays until your closure for the make parameter completes. For example, you can display a loading indicator with a Progressview instance as a placeholder.

Discussion

For example, your app can asynchronously load an Entity from a .reality or .usdz file, and display a ProgressView while the system loads the file:

RealityView { content in
    if let newEntity = try? await Entity(named: "model_file_name") {
        content.add(newEntity)
    }
} placeholder: {
    ProgressView()
}