问题描述
我想知道是否有办法跟踪用户在 swift playgrounds 中输入的内容并将其显示在实时 Playground 中?我似乎无法在网上找到有关此的任何信息。任何帮助都会很棒:)
解决方法
要处理按下的键,您应该重写 keyDown
的 keyUp
或 SKScene
方法,例如:
class MyScene: SKScene {
public override func keyDown(with event: NSEvent) {
super.keyDown(with: event)
handleKeyEvent(event: event,down: true)
}
public override func keyUp(with event: NSEvent) {
super.keyUp(with: event)
handleKeyEvent(event: event,down: false)
}
func handleKeyEvent(event: NSEvent,down: Bool) {
if let key = event.characters?.first {
print("Key: '\(key)' - \(down ? "Down" : "Up")")
}
}
}
let view = SKView(frame: CGRect(x: 0,y: 0,width: 1024,height: 768))
let scene = MyScene(size: CGSize(width: 1024,height: 768))
scene.scaleMode = SKSceneScaleMode.aspectFit
view.presentScene(scene)
PlaygroundPage.current.liveView = view
PlaygroundPage.current.needsIndefiniteExecution = true