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基于JavaScript实现简单的音频播放功能

2019-11-19 14:34:43
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现效果如下:

由于我这边不需要其他按钮,就没写

数据是由后台提供,在这做了个小列子

后台代码

public ActionResult MusicPlayer(int musicId=0) {   MusicPlayerModel model = new MusicPlayerModel();   switch (musicId)   {    default:     model.MusicName = "Believe-动画《海贼王》";     model.CoverImg = "/Content/Music/Believe-cover.jpg";     model.FileUrl = "/Content/Music/Believe.mp3";     model.MusicStartSecond = 0;     model.MusicEndSecond = 227;     break;    case 1:     model.MusicName = "梦回还-动画《狐妖小红娘》";     model.CoverImg = "/Content/Music/梦回还-cover.jpg";     model.FileUrl = "/Content/Music/梦回还.mp3";     model.MusicStartSecond = 0;     model.MusicEndSecond = 250;     break;   }   return View(model);  }

页面代码

@using FunctionTest.Web.Areas.Function.Models;@model MusicPlayerModel@{ ViewBag.Title = "MusicPlayer"; Layout = "~/Areas/Function/Views/Shared/_FunctionLayout.cshtml";}<link href="~/Assets/Function/MusicPlayer/musicPlayer.css" rel="external nofollow" rel="stylesheet" /><script src="~/Assets/Function/MusicPlayer/musicPlayer.js"></script><div class="img-wapper"> <img src="@Model.CoverImg" /></div><div id="player-wapper" class="player-wapper"> <div class="cover-wapper">  <img src="@Model.CoverImg" />  <div class="play">   <i></i>  </div> </div> <div class="info-wapper">  <div class="title">@Model.MusicName</div>  <audio id="audio-player" src="@Model.FileUrl" data-src="@Model.FileUrl" data-start="@Model.MusicStartSecond" data-end="@Model.MusicEndSecond" ></audio>  <div class="audio-progress">   <span id="start-time" class="start-time">00:00</span>   <div id="progress" class="progress">    <span id="player-progress-bar" class="bar">     <i></i>    </span>   </div>   <span id="end-time" class="end-time">00:00</span>  </div> </div></div>

Js

;$(function () { var $playerWapper = $("#player-wapper"),  $audioPlay = $("#audio-player"),  startSecond = $audioPlay.data("start"),//默认开始时间(秒)  endSecond = $audioPlay.data("end"),//默认结束时间(秒)  playSecond = startSecond,//已播放时间(秒)  surplusSecond = endSecond,//剩余时间(秒)  audoiTimer = null; LoadingTime(); Playing(); //通过点击进度条实现播放跳转 $(".progress").click(function (e) {  //获取当前鼠标相对进度条的X坐标  var positionX = e.pageX - $(this).offset().left;   var width = $(this).width();  //进度条的X坐标/进度条宽度获取播放占比  var progess = (positionX / width).toFixed(2);  $("#player-progress-bar").css("width", progess);  //播放占比*总时间获取已播放时间  playSecond = parseInt(progess * endSecond);  surplusSecond = endSecond - playSecond;  //播放器跳转/跟新播放时间  $audioPlay[0].currentTime = playSecond;  LoadingTime(); }) //播放按钮点击事件 $(".play").click(function () {  if ($playerWapper.hasClass("playing")) {   Pause();  }  else {   Playing();  } }) //开始/继续播放 function Playing() {  $playerWapper.addClass("playing");  $playerWapper.removeClass("pause");  $audioPlay[0].play();  audoiTimer = setInterval(function () {   playSecond++;   surplusSecond--;   LoadingTime();   if (surplusSecond <= 0) {    playSecond = startSecond;    surplusSecond = endSecond;    Pause();   }  }, 1000); //每个1秒执行一次 } //暂停播放 function Pause() {  $playerWapper.removeClass("playing");  $playerWapper.addClass("pause");  window.clearInterval(audoiTimer);  $audioPlay[0].pause(); } //加载时间和进度条 function LoadingTime() {  $("#start-time").html(secondToTime(playSecond));  $("#end-time").html(secondToTime(surplusSecond));  $("#player-progress-bar").css("width", Percentage(playSecond, endSecond)); } //计算百分比 function Percentage(second1, second2) {  return (Math.round(second1 / second2 * 10000) / 100+ "%");// 小数点后两位百分比 } //时间转换,将秒转为00:00:00格式 function secondToTime(s) {  var t;  if (s > -1) {   var hour = Math.floor(s / 3600);   var min = Math.floor(s / 60) % 60;   var sec = s % 60;   if (hour < 10) {    t = '0' + hour + ":";   } else {    t = hour + ":";   }   if (min < 10) { t += "0"; }   t += min + ":";   if (sec < 10) { t += "0"; }   t += sec;  }  return t; }})

总结

以上所述是小编给大家介绍的基于JavaScript实现简单的音频播放功能,希望对大家有所帮助,如果大家有任何疑问欢迎给我留言,小编会及时回复大家的!

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