Spotify上的当前播放列表?

时间:2013-10-04 21:24:03

标签: spotify playlist

我想知道是否有办法知道哪个播放列表当前在spotify上播放。我已阅读API并找到了一个" isLoaded" function,返回一个布尔值。我可以浏览所有播放列表并获取哪一个是加载的,但我想知道是否有办法更直接地执行此操作。

1 个答案:

答案 0 :(得分:2)

您可以使用以下命令找出播放器播放内容的uri

require([
  '$api/models',
], function(models) {
  'use strict';

  // find out initial status of the player
  models.player.load(['context']).done(function(player) {
    // player.context.uri will contain the uri of the context
  });

  // subscribe to changes
  models.player.addEventListener('change', function(m) {
    // m.data.context.uri will contain the uri of the context
  });
});

您可以使用uri来获取属性,例如name。在以下示例中,如果当前曲目的上下文是播放列表,我们将检索播放列表的名称:

require([
  '$api/models',
], function(models) {
  'use strict';

  /**
   * Returns whether the uri belongs to a playlist.
   * @param {string} uri The Spotify URI.
   * @return {boolean} True if the uri belongs to a playlist, false otherwise.
   */
  function isPlaylist(uri) {
    return models.fromURI(uri) instanceof models.Playlist;
  }

  /**
   * Returns the name of the playlist.
   * @param {string} playlistUri The Spotify URI of the playlist.
   * @param {function(string)} callback The callback function.
   */
  function getPlaylistName(playlistUri, callback) {
    models.Playlist.fromURI(models.player.context.uri)
      .load('name')
      .done(function(playlist){
        callback(playlist.name);
    });
  }

  // find out initial status of the player
  models.player.load(['context']).done(function(player) {
    var uri = player.context.uri;
    if (isPlaylist(uri)) {
      getPlaylistName(player.context.uri, function(name) {
        // do something with 'name'
      });
    }
  });

  // subscribe to changes
  models.player.addEventListener('change', function(m) {
    var uri = m.data.context.uri;
    if (isPlaylist(uri)) {
      getPlaylistName(m.data.context.uri, function(name) {
        // do something with 'name'
      });
    }
  });
});