ARView 黑屏

Question

我正在尝试以编程方式实例化 ARView。这是我的视图控制器代码

import Foundation
import UIKit
import RealityKit

class ARViewController: UIViewController {
  
  var arView: ARView = {
    let arview = ARView()
    arview.cameraMode = .ar
    arview.automaticallyConfigureSession = true
    arview.translatesAutoresizingMaskIntoConstraints = false
    return arview
  }()
  
  override func viewDidLoad() {
    super.viewDidLoad()
    setupUI()
    setupUIConstraints()
  }
  
  func setupUI() {
    view.addSubview(arView)
    
    // Load the "Cupcake" scene from the "Experience" Reality File
    let boxAnchor = try! Experience.loadBox()
    
    // Add the box anchor to the scene
    arView.scene.anchors.append(boxAnchor)
  }
  
  func setupUIConstraints() {
    view.centerXAnchor.constraint(equalTo: view.centerXAnchor).isActive = true
    view.centerYAnchor.constraint(equalTo: view.centerYAnchor).isActive = true
    view.widthAnchor.constraint(equalTo: view.widthAnchor).isActive = true
    view.heightAnchor.constraint(equalTo: view.heightAnchor).isActive = true
  }
}

应用程序会适当地向我询问相机权限，但即使在接受后，“视图”也只是黑屏。我在 iPhone XS 上，并将 arkit 导入到我的 info.plist 中。任何帮助将不胜感激。

Answer 1

在setupUIConstraints 中，您将 ARViewController.view 的约束设置为它自己的约束，而不是 ARView。

换成 ARView 就好了！