pressesBegan 未在 Playground Book 中调用

Question

我需要响应在物理键盘上按下的键，但方法 pressesBegan 没有在任何 class 上调用。我试过将它放入我的 SKScene 和我的 ViewController，但它就是没有被识别

UPDATE 这是代码，我用 fatalError() 替换了逻辑，这样当 pressesBegan 被调用时这本书就会崩溃。因为它没有崩溃，所以 pressesBegan 没有被调用

其余代码与响应者无关

import Foundation
import SpriteKit
import SceneKit
import UIKit

public class GameScene: SKScene {
    
  // ... some code
    
    public override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
        fatalError()
    }
    
    /// Some more code...
}


class GameViewController: UIViewController {
    
    override func loadView(){
        self.view = sceneView
    }

    let sceneView = SKView(frame: CGRect(x:0 , y:0, width: 1920, height: 1080))
    override func viewDidLoad() {
        if let scene = GameScene(fileNamed: "GameScene") {
            // Set the scale mode to scale to fit the window
            scene.scaleMode = .aspectFill
            
            // Present the scene
            sceneView.presentScene(scene)
        }
    }
    
    public override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
        fatalError()
    }
}

let viewController = GameViewController()
viewController.view.becomeFirstResponder()

PlaygroundPage.current.liveView = viewController
PlaygroundPage.current.needsIndefiniteExecution = true

Answer 1

解决方法是将 override var canBecomeFirstResponder { true } 添加到 UIViewController，在呈现控制器后调用 myViewController.becomeFirstResponder() 并在我不处理压力机时调用 super.pressesBegan

pressesBegan 未在 Playground Book 中调用

pressesBegan not called in Playground Book

sprite-kit

swift

swift-playground

mac-catalyst