RealityKit

Question

我试图在 VC 中打开 ARView 和 Experience.rcproject 文件，但问题是我的屏幕黑屏。为什么？

import RealityKit
import UIKit
import ARKit

class ArVC: UIViewController, ARSCNViewDelegate {
    
    lazy var sceneView: ARSCNView = {
        let sceneView = ARSCNView()
        sceneView.delegate = self
        return sceneView
    }()
    
    var arView: ARView = {
        let arView = ARView()
        let boxAnchor = try! Experience.loadBox()
        arView.scene.anchors.append(boxAnchor)
        return arView
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = .clear
    }
    
    func createView() {
        self.view.addSubview(sceneView)
        self.view.addSubview(self.sceneView)
        self.sceneView.snp.makeConstraints { make in
            make.centerY.centerX.equalToSuperview()
        }
        
        view.subviews.forEach {
            [=10=].translatesAutoresizingMaskIntoConstraints = false
        }
        
        self.sceneView.addSubview(self.arView)
        self.arView.snp.makeConstraints { make in
            make.centerX.centerY.equalToSuperview()
        }
    }
}

还有哪些其他选项可以以编程方式设置 ARView？谢谢。

Answer 1

这段测试代码可以解决问题。如果您从头开始构建 AR 项目（通过选择简单的 iOS 应用程序模板，而不是 ARKit 模板），请确保您在 [=19] 中添加了 Privacy - Camera Usage Description 和 Required device capabilities (Item 0 = ARKit) =]info.plist 文件.

import RealityKit
import UIKit

class ViewController: UIViewController {
    
    var arView: ARView = {
        let arView = ARView(frame: .zero)
        let boxAnchor = try! Experience.loadBox()
        arView.scene.anchors.append(boxAnchor)
        return arView
    }()

    override func viewDidLoad() {
        super.viewDidLoad()
        self.view.backgroundColor = .red
        
        self.view.addSubview(self.arView)
            
        NSLayoutConstraint.activate([
            arView.topAnchor.constraint(equalTo: self.view.topAnchor),
            arView.leadingAnchor.constraint(equalTo: self.view.leadingAnchor),
            arView.bottomAnchor.constraint(equalTo: self.view.bottomAnchor),
            arView.trailingAnchor.constraint(equalTo: self.view.trailingAnchor)
        ])
        self.view.subviews.forEach {
            [=10=].translatesAutoresizingMaskIntoConstraints = false
        }
    }
}

我还注意到你添加了两次 sceneView。

RealityKit – 无法加载 ARView（未找到）

RealityKit – Cannot load ARView (found nil)

swift

arkit