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类我的自定义UI视图控制器：UI视图控制器{让指导覆盖= AR指导覆盖视图（）

override func viewDidLoad() {
    let arView = ARView(frame: .zero)
    let session = arView.session
    // this is a view that display standardized onbording instructions to direct users towards specific goal.
    let coachingOverly = ARCoachingOverlayView()
    // this is an intger bit mask that determines how the reciever resized itself.
    coachingOverly.autoresizingMask = [.flexibleWidth,.flexibleHeight]
    coachingOverly.goal = .anyPlane
    coachingOverly.session = session
    arView.addSubview(coachingOverly)
    // Load the "Opject" scene from the "dumu" Reality File
    let anchor = try! Dumu.loadScene()
    
    // Add the Opject anchor to the scene
    arView.scene.anchors.append(anchor)
    
    self.view.addSubview(arView)
}

override func viewWillAppear(_ animated: Bool) {
    coachingOverly.setActive(true, animated: true)
}

}