const bgMusic = wx.getBackgroundAudioManager() //創建背景音樂
Page({
 
 data: {
  id: '',//請求數據參數id
  musicMsg: {},//接收數據對象
 },
 
 onLoad: function (options) {
  var that = this
  that.setData({
   id: options.id,
  })
  that.getPicInfo() //請求服務器
 }, 
 // 開始播放
 listenerButtonPlay: function (src) {
  var that = this
  console.log(src)
  bgMusic.src = src;
  bgMusic.onTimeUpdate(() => { //監聽音頻播放進度
   console.log(bgMusic.currentTime)
  })
  bgMusic.onEnded(() => { //監聽音樂自然播放結束
   console.log("音樂播放結束");
   that.listenerButtonPlay(that.data.musicMsg.mp3)
  })
  bgMusic.play(); //播放音樂
 },
 getPicInfo() {
  var that = this
  wx.request({
   url: 'https://xxxxx.xxxxx.com/1.json?id=' + that.data.id,
   header: {
    'content-type': 'application/json'
   },
   method: 'GET',
   success: function (res) {
    that.listenerButtonPlay(res.data.data.mp3) //成功回調執行播放音樂
    that.setData({
     musicMsg: res.data.data, //賦值對象
    })
 
   }
  })
 },
 
 onUnload() {
  var that = this
  that.listenerButtonStop()//頁面卸載時停止播放
  console.log("離開")
 },
 
 //暫停
 audioPause: function () {
  var that = this
  bgMusic.pause(); //暫停播放音樂
  console.log('暫停')
 },
 audioPlay: function () {
  var that = this
  bgMusic.play(); //停止播放
  console.log('繼續播放')
 },
 //停止播放
 listenerButtonStop: function () {
  bgMusic.stop()
 },
})