https://developers.weixin.qq.com/miniprogram/dev/api/media/audio/InnerAudioContext.play.html

本问题针对ios 安卓系统没问题

InnerAudioContext.play() 在 wx.scanCode 在失败回调中可以正常播放

但在成功回调中 无法播放 也监听不到错误

onShow () {
  this.innerAudioContext = wx.createInnerAudioContext()
  this.innerAudioContext.src = "http://downsc.chinaz.net/Files/DownLoad/sound1/201707/8986.mp3"
  this.innerAudioContext.onPlay(() => {
    console.log('开始播放')
  })
  this.innerAudioContext.onError((res) => {
    console.log(res.errMsg)
    console.log(res.errCode)
  })
  this.scanCode()
},
scanCode () {
  wx.scanCode({
    scanType: ['barCode'],
    success: res=> {
      console.log('scancode succ',this.innerAudioContext)
      this.innerAudioContext.play()
    },
    fail:res=> {
      console.log('scancode fail',this.innerAudioContext)
      this.innerAudioContext.play()
    }
  })
}