onHide: function () {
    //后台播放音乐
    const backgroundAudioManager = wx.getBackgroundAudioManager()
    backgroundAudioManager.title = '此时此刻'
    backgroundAudioManager.epname = '此时此刻'
    backgroundAudioManager.singer = '许巍'


    backgroundAudioManager.coverImgUrl = 'http://y.gtimg.cn/music/photo_new/T002R300x300M000003rsKF44GyaSk.jpg?max_age=2592000'
    // 设置了 src 之后就会自动播放，若此处不设置src默认将为空字符串，当设置了src可以播放音乐
    backgroundAudioManager.src = 'http://ws.stream.qqmusic.qq.com/M500001VfvsJ21xFqb.mp3?guid=ffffffff82def4af4b12b3cd9337d5e7&uin=346897220&vkey=6292F51E1E384E061FF02C31F716658E5C81F5594D561F2E88B854E81CAAB7806D5E4F103E55D33C16F3FAC506D1AB172DE8600B37E43FAD&fromtag=46'
  } ,

  {

"sitemapLocation": "sitemap.json",

  "requiredBackgroundModes": [ "audio"]

}

错误原因：

VM1010:2 thirdScriptError

APP-SERVICE-SDK:Can not set wx.backgroundAudio.title, background audio is preempted.;at App lifeCycleMethod onHide function

Error: APP-SERVICE-SDK:Can not set wx.backgroundAudio.title, background audio is preempted.