如何将元数据添加到正在播放的音频文件Alexa中以避免默认的灰色背景和技能名称

Question

我最近得到了亚马逊回声秀。我能够成功播放视频文件。我想捕获用户何时按下（在触摸屏上）暂停/播放/上一个/下一个，以便我能够基于用户触摸的时间添加另一个视频文件。我实现了播放控制器接口，并向Alexa注册了playBackHandlers。

const playBackHandlers = 
{

    'PlaybackController.NextCommandIssued' : function() {
        //Your skill can respond to NextCommandIssued with any AudioPlayer directive.
    console.log("INSIDE NEXT");
    },
    'PlaybackController.PauseCommandIssued' : function() {
        //Your skill can respond to PauseCommandIssued with any AudioPlayer directive.
       console.log("INSIDE PAUSE");
    },
    'PlaybackController.PlayCommandIssued' : function() {
        //Your skill can respond to PlayCommandIssued with any AudioPlayer directive.
    },
    'PlaybackController.PreviousCommandIssued' : function() {
        //Your skill can respond to PreviousCommandIssued with any AudioPlayer directive.
    },
    'System.ExceptionEncountered' : function() {
        //Your skill cannot return a response to System.ExceptionEncountered.
    }
};

没有一次，使用回显显示上的触摸按钮后，我根本看不到任何日志语句。任何帮助，将不胜感激 。预先感谢！