基于JavaScript實現(xiàn)簡單的音頻播放功能

更新時間：2018年01月07日 09:12:14 作者：OnePiece丶嘿喂Go

本文給大家?guī)砹嘶趈s實現(xiàn)簡單的音頻播放功能，數(shù)據(jù)是由后臺提供的，具體實例代碼大家參考下本文

現(xiàn)效果如下：

由于我這邊不需要其他按鈕，就沒寫

數(shù)據(jù)是由后臺提供，在這做了個小列子

后臺代碼

public ActionResult MusicPlayer(int musicId=0) {
   MusicPlayerModel model = new MusicPlayerModel();
   switch (musicId)
   {
    default:
     model.MusicName = "Believe-動畫《海賊王》";
     model.CoverImg = "/Content/Music/Believe-cover.jpg";
     model.FileUrl = "/Content/Music/Believe.mp3";
     model.MusicStartSecond = 0;
     model.MusicEndSecond = 227;
     break;
    case 1:
     model.MusicName = "夢回還-動畫《狐妖小紅娘》";
     model.CoverImg = "/Content/Music/夢回還-cover.jpg";
     model.FileUrl = "/Content/Music/夢回還.mp3";
     model.MusicStartSecond = 0;
     model.MusicEndSecond = 250;
     break;
   }
   return View(model);
  }

頁面代碼

@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"),//默認開始時間（秒）
  endSecond = $audioPlay.data("end"),//默認結(jié)束時間（秒）
  playSecond = startSecond,//已播放時間（秒）
  surplusSecond = endSecond,//剩余時間（秒）
  audoiTimer = null;
 LoadingTime();
 Playing();
 //通過點擊進度條實現(xiàn)播放跳轉(zhuǎn)
 $(".progress").click(function (e) {
  //獲取當前鼠標相對進度條的X坐標
  var positionX = e.pageX - $(this).offset().left; 
  var width = $(this).width();
  //進度條的X坐標/進度條寬度獲取播放占比
  var progess = (positionX / width).toFixed(2);
  $("#player-progress-bar").css("width", progess);
  //播放占比*總時間獲取已播放時間
  playSecond = parseInt(progess * endSecond);
  surplusSecond = endSecond - playSecond;
  //播放器跳轉(zhuǎn)/跟新播放時間
  $audioPlay[0].currentTime = playSecond;
  LoadingTime();
 })
 //播放按鈕點擊事件
 $(".play").click(function () {
  if ($playerWapper.hasClass("playing")) {
   Pause();
  }
  else {
   Playing();
  }
 })
 //開始/繼續(xù)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); //每個1秒執(zhí)行一次
 }
 //暫停播放
 function Pause() {
  $playerWapper.removeClass("playing");
  $playerWapper.addClass("pause");
  window.clearInterval(audoiTimer);
  $audioPlay[0].pause();
 }
 //加載時間和進度條
 function LoadingTime() {
  $("#start-time").html(secondToTime(playSecond));
  $("#end-time").html(secondToTime(surplusSecond));
  $("#player-progress-bar").css("width", Percentage(playSecond, endSecond));
 }
 //計算百分比
 function Percentage(second1, second2) {
  return (Math.round(second1 / second2 * 10000) / 100+ "%");// 小數(shù)點后兩位百分比
 }
 //時間轉(zhuǎn)換，將秒轉(zhuǎn)為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;
 }
})

總結(jié)

以上所述是小編給大家介紹的基于JavaScript實現(xiàn)簡單的音頻播放功能，希望對大家有所幫助，如果大家有任何疑問歡迎給我留言，小編會及時回復大家的！

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