Recently, esp-adf is used to play network songs. Users need to switch songs of another url address when the current song is not playing. The examples given by the official are not given to the relevant examples.

最近用esp-adf进行网络歌曲的播放，用户需要在当前歌曲没有播放时，切换另一个url地址的歌曲。官方给出的例子总并没有给去相关的例子。