如何从MPNowPlayingInfoCenter访问ViewController

import MediaPlayer

let nowPlayingInfoCenter = MPNowPlayingInfoCenter.default()

if let nowPlayingInfo = nowPlayingInfoCenter.nowPlayingInfo {
    let title = nowPlayingInfo[MPMediaItemPropertyTitle] as? String
    let artist = nowPlayingInfo[MPMediaItemPropertyArtist] as? String
    let albumTitle = nowPlayingInfo[MPMediaItemPropertyAlbumTitle] as? String
    // 其他音乐信息的访问
}

var nowPlayingInfo = nowPlayingInfoCenter.nowPlayingInfo ?? [String: Any]()
nowPlayingInfo[MPMediaItemPropertyTitle] = "新的歌曲标题"
nowPlayingInfo[MPMediaItemPropertyArtist] = "新的艺术家"
nowPlayingInfo[MPMediaItemPropertyAlbumTitle] = "新的专辑标题"
// 其他音乐信息的更新
nowPlayingInfoCenter.nowPlayingInfo = nowPlayingInfo