所以,我正在尝试以编程方式创建一个SceneView
class ViewController: UIViewController, ARSCNViewDelegate { var sceneView: ARSCNView = ARSCNView() let configuration = ARWorldTrackingConfiguration() override func viewDidLoad() { super.viewDidLoad() self.sceneView.debugOptions = [ARSCNDebugOptions.showFeaturePoints, ARSCNDebugOptions.showWorldOrigin] self.configuration.planeDetection = .horizontal self.sceneView.session.run(configuration) self.sceneView.delegate = self self.sceneView.autoenablesDefaultLighting = true //add autolayout contstraints self.sceneView.translatesAutoresizingMaskIntoConstraints = false self.sceneView.topAnchor.constraint(equalTo: self.view.topAnchor).isActive = true self.sceneView.leftAnchor.constraint(equalTo: self.view.leftAnchor).isActive = true self.sceneView.rightAnchor.constraint(equalTo: self.view.rightAnchor).isActive = true self.sceneView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor).isActive = true } func renderer(_ renderer: SCNSceneRenderer, didAdd node: SCNNode, for anchor: ARAnchor) { guard anchor is ARPlaneAnchor else {return} } }
但我收到此错误消息:
由于未捕获的异常“ NSGenericException”而终止应用程序,原因:“无法激活具有锚点的约束,并且它们没有共同的祖先。约束或其锚点是否引用了不同视图层次结构中的项目?那是非法的。
这是部分发生的\\add autolayout contstraints。如何为该元素添加约束?
\\add autolayout contstraints
dan是正确的,您需要先添加sceneView为子视图,然后才能锚定它。尝试这样的事情:
sceneView
view.addSubview(sceneView) sceneView.anchor(top: self.view.topAnchor, left: self.view.leftAnchor, bottom: self.view.bottomAnchor, right: self.view.rightAnchor, paddingTop: 0, paddingLeft: 0, paddingBottom: 0, paddingRight: 0, width: 0, height: 0)