---
title: "init(make:update:)"
framework: realitykit
role: symbol
role_heading: Initializer
path: "realitykit/realityview/init(make:update:)"
---

# init(make:update:)

Creates a reality view for iOS and macOS, with an optional update closure.

## Declaration

```swift
nonisolated init(make: @escaping @MainActor @Sendable (inout RealityViewCameraContent) async -> Void, update: (@MainActor (inout RealityViewCameraContent) -> Void)? = nil) where Content == RealityViewCameraContent.Body<RealityViewDefaultPlaceholder>
```

## 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.

## Discussion

Discussion Use the update closure to modify entities in the scene based on a Boolean state property, like in the following example: RealityView { content in     content.add(boxEntity) } update: { content in     boxEntity.scale = isEnlarged ? .one * 2 : .one }