visionOS: An Introduction

Dec 16 2025 · Swift 6, visionOS 26, Xcode 26

Lesson 03: Building an Immersive View

Demo Part 1

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Start with the app in the Starter folder, or carry on with the build from lesson 2.

NavigationSplitView {
  Text("Immersive Tab")
    .font(.largeTitle)
    .foregroundColor(.orange)
} detail: {
    Button("Open ImmersiveSpace") {
      //
    }
}
.tabItem {
  Image(systemName: "globe")
  Text("Immersive")
}

RealityView { content in
  if let scene = try? await Entity(named: "ImmersiveScene", in: realityKitContentBundle) {
    content.add(scene)
  }
}

ImmersiveSpace(id: "ImmersiveScene") {
  ImmersiveView()
}

@State private var currentStyle: ImmersionStyle = .full

.immersionStyle(selection: $currentStyle, in: .full)

Button("Open ImmersiveSpace") {

}.foregroundColor(.blue)
Button("Close ImmersiveSpace") {

}.foregroundColor(.red)

@Environment(\.openImmersiveSpace) var openImmersiveScene
@Environment(\.dismissImmersiveSpace) var dismissImmersiveScene

Task {
  let result =  await openImmersiveScene(id: "ImmersiveScene")
  if case .error = result {
    print("An error occurred")
  }
}

Task {
  await dismissImmersiveScene()
  print("Dismissing Complete")
}

.offset(y: -2000)
.offset(z: -1500)

@State private var isShowingImmersive = false

.opacity(isShowingImmersive ? 0 : 1)

Button("Close ImmersiveSpace") {
  Task {
    await dismissImmersiveScene()
    print("Dismissing Complete")
    isShowingImmersive = false
  }
}.foregroundColor(.red)
  .opacity(isShowingImmersive ? 1 : 0)

Button("Open ImmersiveSpace") {
    Task {
      let result =  await openImmersiveScene(id: "ImmersiveScene")
      if case .error = result {
        print("An error occurred")
      }
      isShowingImmersive = true
    }
}.foregroundColor(.blue)

update: { content in
  if let scene = content.entities.first {
    scene.availableAnimations.forEach { animation in
      scene.playAnimation(animation.repeat(), transitionDuration: 3, startsPaused: false)
    }
  }
}
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