真的脑子疼，小程序的音频组件居然没有进度控制的功能，网上的方法又很少，逻辑通了就好写了。
1.所有音频播放、停止按钮使用状态切换控制
2.当点击某个音频播放时，首先将所有音频的状态置为停止状态，然后将当前音频置为播放状态
3.滚动条插件配合音频控件一起使用
4.播放状态时滚动条的长度随音频进度变化而变化，时间也要显示
5.拖动滚动条时，音频的当前时间随滚动条变化而变化
6.

1.wxml

<text class="left_text">{{item.currentProcess}}</text>                <slider class="slider_middle" bindchange="changeSlide" bindtouchstart="start" bindtouchend="end" max="{{item.totalProcessNum}}" min="0" value="{{item.currentProcessNum}}" disabled="{{item.canSlider}}"  block-size    ="18" data-index="{{index}}"></slider>                <text class="right_text">{{item.totalProcess}}</text>                <image class="audio_btn" wx:if="{{!item.showAudio}}" src="../assets/play.png" data-src="{{item.src}}" bindtap="playAudio" data-index = "{{index}}"></image>                <image class="audio_btn" wx:else src="../assets/pause.png" bindtap="pauseAudio" data-index = "{{index}}"></image>

2.js

  videoControl(e) {//控制视频播放，需求更改后暂时无用    let src = e.currentTarget.dataset.src    let img = e.currentTarget.dataset.post    let data = this.data.cc    let that = this    if (this.data.innerAudioContext2){      that.data.innerAudioContext2.stop()    }    if (this.data.innerAudioContext) {      that.data.innerAudioContext.stop()      that.setUser(that.data.oldid, false)    }    for(var i = 0;i<data.length;i++){     if (data[i].type == '2'){        data[i].play = true      }    }    this.setData({      cc:data    })    if(this.data.type){      wx.navigateTo({        url: '/pages/record/record?cid=' + this.data.cid + '&src=' + src + '&img=' + img + '&type="share"'      })    }else{      wx.navigateTo({        url: '/pages/record/record?cid=' + this.data.cid + '&src=' + src + '&img=' + img      })    }  },  audioControl(e) {//控制课程音频播放，需求更改后暂时无用    let index = e.currentTarget.dataset.index    let that = this    let data = this.data.cc    if (this.data.innerAudioContext) {      that.data.innerAudioContext.stop()      that.setUser(that.data.oldid, false)    }      for (var i = 0; i < data.length; i++) {        if (data[i].type == '2' && i != index) {          data[i].play = true        } else if (data[i].type == '2') {          data[i].play = false        } if (data[i].type == '3') {          data[i].play = true        }       }    if (!that.data.innerAudioContext2) {//第一次点击音频      that.data.innerAudioContext2 = wx.createInnerAudioContext();      that.data.innerAudioContext2.src = e.currentTarget.dataset.srcs      that.data.innerAudioContext2.play()      that.data.innerAudioContext2.onPlay(()=>{      })      that.data.innerAudioContext2.onStop(() => {      })      that.setData({//记录当前点击项和上次点击项        newid2: e.currentTarget.dataset.index,        oldid2: that.data.newid2 ? that.data.newid2 : index      })       } else {//非第一次点击      let old = that.data.newid2      that.setData({        newid2: index,        oldid2: old      })      if (that.data.oldid2 != index ) {        that.data.innerAudioContext2.stop()        that.data.innerAudioContext2.src = e.currentTarget.dataset.srcs        that.data.innerAudioContext2.play()      }else{        if (that.data.innerAudioContext2.paused){          that.data.innerAudioContext2.stop()          that.data.innerAudioContext2.src = e.currentTarget.dataset.srcs          that.data.innerAudioContext2.play()        }else{          that.data.innerAudioContext2.stop()           for (var i = 0; i < data.length; i++) {            data[i].play = true          }        }      }    }    this.setData({      cc: data    })  },  playAudio(e){//带滚动条多个音频处理问题    let that = this    let arr = that.data.cc    let index = e.currentTarget.dataset.index    if (that.data.audio) {//将所有的音频停止      that.data.audio.pause()    }    for(let i=0;i<arr.length;i++){//将所有的音频置为停止状态      that.setAudioType(i,false,true)    }    that.setAudioType(index,true,false)//将当前音频置为播放状态    that.data.audio = wx.getBackgroundAudioManager();//初始化音频并播放    that.data.audio.src = e.currentTarget.dataset.src    that.data.audio.title = '泰格英语'    that.data.audio.epname = '泰格英语'    that.data.audio.autoplay = true    that.data.audio.play();    //音频开始播放的时间    if (arr[index].currentProcessNum != 0){      that.data.audio.startTime = arr[index].currentProcessNum    }    //音频自然播放结束    that.data.audio.onEnded(function name(params) {      that.setCurrent(index, "00:00", 0)      that.setAudioType(index,false,false)    })    //音频进度播放更新    that.data.audio.onTimeUpdate(function () {      //设置总时长      if(arr[index].totalProcess == '00:00' || arr[index].totalProcessNum == '00:00'){        that.setTotal(index,that.time_to_sec(that.data.audio.duration), that.data.audio.duration)      }      //没有触动滑动事件更新进度      if(!arr[index].isMove){        that.setCurrent(index,that.time_to_sec(that.data.audio.currentTime), that.data.audio.currentTime)      }    })  },  //开始滑动触发  start : function (e) {    let arr = this.data.cc    let index = e.currentTarget.dataset.index    this.move(index,true)  },  //触发滑动条  changeSlide : function (e) {    let that = this    let arr = that.data.cc    let index = e.currentTarget.dataset.index    const position = e.detail.value    let seek = arr[index].seek    seek = position    if (seek != -1) {      wx.seekBackgroundAudio({        position: Math.floor(position),      })      seek = -1    }    that.setCurrent(index,that.time_to_sec(position), position)    that.seek(index,seek)  },  //结束滑动触发  end : function (e) {    let arr = this.data.cc    let index = e.currentTarget.dataset.index    this.move(index, false)  },  //停止播放音频  pauseAudio:function (e) {    let that = this    let index = e.currentTarget.dataset.index    that.data.audio.pause()    that.setAudioType(index,false,true)  },  //设置音频图片状态以及滚动条可播放状态函数  setAudioType: function (index, tag, tagSlide, ) {    let that = this    let arrs = that.data.cc    arrs[index].showAudio = tag    arrs[index].canSlider = tagSlide    that.setData({      cc:arrs    })  },  //设置音频当前播放时间以及滚动条当前位置函数  setCurrent: function (index,currentProcess, currentProcessNum) {    let that = this    let arrs = that.data.cc    arrs[index].currentProcess = currentProcess    arrs[index].currentProcessNum = currentProcessNum    that.setData({      cc: arrs    })  },  //设置音频总播放时间以及滚动条总位置函数  setTotal: function (index,totalProcess, totalProcessNum) {    let that = this    let arrs = that.data.cc    arrs[index].totalProcess = totalProcess    arrs[index].totalProcessNum = totalProcessNum    that.setData({      cc: arrs    })  },  //设置滚动条是否滚动状态函数  move:function (index,isMove) {    let that = this    let arrs = that.data.cc    arrs[index].isMove = isMove    that.setData({      cc: arrs    })  },  //设置音频时间点函数  seek: function (index, seek) {    let that = this    let arrs = that.data.cc    arrs[index].seek = seek    that.setData({      cc: arrs    })  },