如何在对UIView进行子类化时检测箭头键？

class CustomView: UIView {
    override func hitTest(_ point: CGPoint, with event: UIEvent?) -> UIView? {
        let arrowKeys = [UIKeyCommand.inputUpArrow, UIKeyCommand.inputDownArrow, UIKeyCommand.inputLeftArrow, UIKeyCommand.inputRightArrow]
        
        if let keyCommands = event?.keyCommands {
            for keyCommand in keyCommands {
                if arrowKeys.contains(keyCommand.input) {
                    // 处理箭头键的逻辑
                    // ...
                    return self
                }
            }
        }
        
        return super.hitTest(point, with: event)
    }
}