如何在 Mac Catalyst 中检测按键

如何解决如何在 Mac Catalyst 中检测按键

出于某种原因，我无法让印刷机开始在 Mac Catalyst 中工作。我的代码是：

override func pressesBegan(_ presses: Set<UIPress>,with event: UIPressesEvent?) {
    // Run backward or forward when the user presses a left or right arrow key.
    
    var didHandleEvent = false
    for press in presses {
        guard let key = press.key else { continue }
        if key.charactersIgnoringModifiers == UIKeyCommand.inputLeftArrow {
            self.moveLeft()
            didHandleEvent = true
        }
        if key.charactersIgnoringModifiers == UIKeyCommand.inputRightArrow {
            self.moveRight()
            didHandleEvent = true
        }
        if key.charactersIgnoringModifiers == UIKeyCommand.inputUpArrow {
            self.moveUp()
            didHandleEvent = true
        }
        if key.charactersIgnoringModifiers == UIKeyCommand.inputDownArrow {
            self.moveDown()
            didHandleEvent = true
        }
    }
    
    if didHandleEvent == false {
        // Didn't handle this key press,so pass the event to the next responder.
        super.pressesBegan(presses,with: event)
    }
}

当我按下一个键时，我在调试控制台中得到的是“[AXRuntimeCommon] UnkNown client: Dungeon Depths”和系统无效键提示音。

我错过了什么吗？