如何检测tvOS remote上按下的音量按钮

import UIKit

class MyViewController: UIViewController {
    
    override func pressesBegan(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
        super.pressesBegan(presses, with: event)
        for press in presses {
            if press.type == .volume {
                // 音量键被按下
                handleVolumeButtonPress()
            }
        }
    }
    
    override func pressesChanged(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
        super.pressesChanged(presses, with: event)
        for press in presses {
            if press.type == .volume {
                // 音量键被持续按压
                handleVolumeButtonChange()
            }
        }
    }
    
    override func pressesEnded(_ presses: Set<UIPress>, with event: UIPressesEvent?) {
        super.pressesEnded(presses, with: event)
        for press in presses {
            if press.type == .volume {
                // 音量键被释放
                handleVolumeButtonRelease()
            }
        }
    }
    
    private func handleVolumeButtonPress() {
        print("音量键按下")
    }
    
    private func handleVolumeButtonChange() {
        print("音量键持续按压")
    }
    
    private func handleVolumeButtonRelease() {
        print("音量键释放")
    }
}