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JavaScript implements audio control progress bar effect code

零下一度Original: 2017-04-18 11:04:012817browse

This article mainly introduces the sample code of js to implement the audio control progress bar function. Has very good reference value. Let’s take a look at it with the editor below

Rendering:

##The code is as follows:

<!doctype html>
<html>
<head>
<meta name="author" content="dony">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="pragma" content="no-cache">
<meta name="renderer" content="webkit">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, user-scalable=no">
<title>音频控制进度条</title>
<style type="text/css">

body,p{padding: 0;margin: 0;}
.m-main{width:560px; height: 100%; margin: 3% auto; background-color:#30a5ff;}
.m-main video{display: none; }
.m-main .player {
  width: 100%;
  height: 150px;
  position: relative;
  bottom: 0px;
}
.m-main .player>a{display: inline-block; width: 20%; margin: 0 auto; padding: 5%; color: #FFF; text-align: center;}
.m-main .play-box {
  width: 100%;
  margin: 0 auto;
}

.m-main .play-box .left {
  width: 100%;
  float: left;
}

.m-main .play-box .left p.timeline { width: 70%;height: 10px; background-color: rgba(216, 216, 216, 0.5); border-radius: 5px; margin:30px auto 0; position: relative; z-index: 2; }
.m-main .play-box .left p.timeline span {position: relative; width: 0px; height: 10px; background-color: #FFF; border-radius: 5px; display: block; -webkit-transition: width ease-out 0.3s;-o-transition: width ease-out 0.3s;transition: width ease-out 0.3s;}
.m-main .play-box .left p.timeline span:after{content: ""; position: absolute; top: -4px; right:-0.6rem;width: 1.2rem; height:1.2rem; border-radius: 50%;background-color: #FFF;}
.m-main .play-box .left p.info { height: 26px; line-height: 26px; font-size: 14px; color: #000; position: relative; top: -18px; margin:0 10px; z-index: 1;color: #FFF;}
.m-main .play-box .left p.info .size { float: left; display: block;}
.m-main .play-box .left p.info .timeshow { float: right; display: block;}
</style>
</head>
<body>
<p class="m-main">
  <p class="player">
   <a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" id="js-play">播放</a>
   <a href="javascript:void(0)" rel="external nofollow" rel="external nofollow" id="js-pause">暂停</a>
    <p class="play-box">
      <p class="left">
        <p class="timeline"><span style=""></span></p>
        <p class="info">
          <span class="size">00:00</span>
          <span class="timeshow">00:00</span>
        </p>
      </p>
    </p>
  </p>
 <p class="video">
 <video controls autoplay name="media" id="js-video"><source src="http://chipsguide.snaillove.com/Public/Uploads/file_server_storage/Audio/2017/03/23/19/192_20003137.mp3" type="video/mp4"></video>
 </p>
</p>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.4/jquery.min.js"></script>
<script type="text/javascript">
  $(function(){
   AudioControl(&#39;js-video&#39;)
   function AudioControl(id){
     // 音频控制进度条
     var audio = document.getElementById(id);
     $(audio).on(&#39;loadedmetadata&#39;,function(){
    audio.pause();
    // 进度条控制
     $(document).on(&#39;touchend&#39;,&#39;.timeline&#39;,function(e){
       var x = e.originalEvent.changedTouches[0].clientX-this.offsetLeft;
       var X = x < 0 ? 0 : x ;
       var W = $(this).width();
       var place = X > W ? W : X;
       audio.currentTime = (place/W).toFixed(2)*audio.duration
       $(this).children().css({width:(place/W).toFixed(2)*100+"%"})
     });
     // 播放
    $(document).on(&#39;click&#39;,&#39;#js-play&#39;,function(){
    audio.play()
    });
    // 暂停
    $(document).on(&#39;click&#39;,&#39;#js-pause&#39;,function(){
    audio.pause()
    });
     })
     setInterval(function () {
       var currentTime = audio.currentTime;
       setTimeShow(currentTime);
     }, 1000);
     // 设置播放时间
   function setTimeShow(t) {
     t = Math.floor(t);
     var playTime = secondToMin(audio.currentTime);
     $(".size").html(playTime);
     $(&#39;.timeshow&#39;).text(secondToMin(audio.duration))
     $(&#39;.timeline&#39;).children().css({width:(t/audio.duration).toFixed(4)*100+"%"})
   }
     // 计算时间
   function secondToMin(s) {
     var MM = Math.floor(s / 60);
     var SS = s % 60;
     if (MM < 10)
       MM = "0" + MM;
     if (SS < 10)
       SS = "0" + SS;
     var min = MM + ":" + SS;
     return min.split(&#39;.&#39;)[0];
   }
   }
  })
</script>
</body>
</html>

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