详解uni-app（vue）基于InnerAudioContext封装一个基本的音频组件

<view>  <image></image>  <text>无音源</text>  <text>{{ fmtSecond(currentTime) }}/{{ fmtSecond(duration) }}</text></view>复制代码

props: {  audioSrc: {    type: String,    default: ''  },},复制代码

import { formatSecondToHHmmss, afterAudioPlay, beforeAudioRecordOrPlay } from '../../lib/Utils'const iconPaused = '../../static/images/icon_paused.png'const iconPlaying = '../../static/images/icon_playing.png'const iconStop = '../../static/images/icon_stop.png'const iconLoading = '../../static/images/icon_loading.gif'// ...data() {  return {    audioCtx: null, // 音频上下文    duration: 0, // 音频总时长    currentTime: 0, // 音频当前播放的时长    audioImg: iconLoading, // 默认状态为加载中  }},watch: {  audioSrc: {    handler(newSrc, oldSrc) {      console.log('watch', newSrc, oldSrc)      this.audioImg = iconLoading      this.currentTime = 0      this.duration = 0      if (this.audioCtx === undefined) {        this.audioCtx = uni.createInnerAudioContext()        this.onTimeUpdate = this.audioCtx.onTimeUpdate        this.bindAuidoCallback(this.audioCtx)      } else {        this.audioCtx.src = newSrc      }      if (this.audioCtx.play) {        this.audioCtx.stop()        getApp().globalData.audioPlaying = false      }    }  }},mounted() {  this.audioCtx = uni.createInnerAudioContext()  this.audioCtx.src = this.audioSrc  this.audioCtx.startTime = 0  this.bindAuidoCallback(this.audioCtx)},methods: {  bindAuidoCallback(ctx) {    ctx.onTimeUpdate((e) =&gt; {      this.onTimeUpdate(e)    })    ctx.onCanplay((e) =&gt; {      this.onCanplay(e)    })    ctx.onWaiting((e) =&gt; {      this.onWaiting(e)    })    ctx.onPlay((e) =&gt; {      this.onPlay(e)    })    ctx.onPause((e) =&gt; {      this.onPause(e)    })    ctx.onEnded((e) =&gt; {      this.onEnded(e)    })    ctx.onError((e) =&gt; {      this.onError(e)    })  },  tips(){    uni.showToast({      title: '无效音源,请先录音',      icon: 'none'    })  },  playOrStopAudio() {    if (this.audioCtx === null) {      this.audioCtx = uni.createInnerAudioContext()      this.audioCtx.src = this.audioSrc      this.bindAuidoCallback(this.audioCtx)    }    if (this.audioCtx.paused) {      if (beforeAudioRecordOrPlay('play')) {        this.audioCtx.play()        this.audioImg = iconPlaying      }    } else {      this.audioCtx.pause()      afterAudioPlay()      this.audioImg = iconPaused    }  },  onTimeUpdate(e) {    console.log('onTimeUpdate', this.audioCtx.duration, this.audioCtx.currentTime)    if (this.audioCtx.currentTime &gt; 0 &amp;&amp; this.audioCtx.currentTime  0 &amp;&amp; this.audioCtx.duration <h3 data-id="heading-4">同样的scss文件</h3><pre class="brush:php;toolbar:false;"><style>.custom-audio {  border-radius: 8vw;  border: #CCC 1px solid;  background: #F3F6FC;  color: #333;  display: flex;  flex-flow: row nowrap;  align-items: center;  justify-content: space-between;  padding: 2vw;  font-size: 14px;  .audio-btn {    width: 10vw;    height: 10vw;    white-space: nowrap;    display: flex;    align-items: center;    justify-content: center;  }}</style>复制代码