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基于JavaScript實(shí)現(xiàn)簡(jiǎn)單的音頻播放功能

 更新時(shí)間:2018年01月07日 09:12:14   作者:OnePiece丶嘿喂Go  
本文給大家?guī)?lái)了基于js實(shí)現(xiàn)簡(jiǎn)單的音頻播放功能,數(shù)據(jù)是由后臺(tái)提供的,具體實(shí)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(méi)寫(xiě)

數(shù)據(jù)是由后臺(tái)提供,在這做了個(gè)小列子

后臺(tái)代碼

public ActionResult MusicPlayer(int musicId=0) {
   MusicPlayerModel model = new MusicPlayerModel();
   switch (musicId)
   {
    default:
     model.MusicName = "Believe-動(dòng)畫(huà)《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(mèng)回還-動(dòng)畫(huà)《狐妖小紅娘》";
     model.CoverImg = "/Content/Music/夢(mèng)回還-cover.jpg";
     model.FileUrl = "/Content/Music/夢(mèng)回還.mp3";
     model.MusicStartSecond = 0;
     model.MusicEndSecond = 250;
     break;
   }
   return View(model);
  }

頁(yè)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(rèn)開(kāi)始時(shí)間(秒)
  endSecond = $audioPlay.data("end"),//默認(rèn)結(jié)束時(shí)間(秒)
  playSecond = startSecond,//已播放時(shí)間(秒)
  surplusSecond = endSecond,//剩余時(shí)間(秒)
  audoiTimer = null;
 LoadingTime();
 Playing();
 //通過(guò)點(diǎn)擊進(jìn)度條實(shí)現(xiàn)播放跳轉(zhuǎn)
 $(".progress").click(function (e) {
  //獲取當(dāng)前鼠標(biāo)相對(duì)進(jìn)度條的X坐標(biāo)
  var positionX = e.pageX - $(this).offset().left; 
  var width = $(this).width();
  //進(jìn)度條的X坐標(biāo)/進(jìn)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(shí)間獲取已播放時(shí)間
  playSecond = parseInt(progess * endSecond);
  surplusSecond = endSecond - playSecond;
  //播放器跳轉(zhuǎn)/跟新播放時(shí)間
  $audioPlay[0].currentTime = playSecond;
  LoadingTime();
 })
 //播放按鈕點(diǎn)擊事件
 $(".play").click(function () {
  if ($playerWapper.hasClass("playing")) {
   Pause();
  }
  else {
   Playing();
  }
 })
 //開(kāi)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(gè)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(shí)間和進(jìn)度條
 function LoadingTime() {
  $("#start-time").html(secondToTime(playSecond));
  $("#end-time").html(secondToTime(surplusSecond));
  $("#player-progress-bar").css("width", Percentage(playSecond, endSecond));
 }
 //計(jì)算百分比
 function Percentage(second1, second2) {
  return (Math.round(second1 / second2 * 10000) / 100+ "%");// 小數(shù)點(diǎn)后兩位百分比
 }
 //時(shí)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(shí)現(xiàn)簡(jiǎn)單的音頻播放功能,希望對(duì)大家有所幫助,如果大家有任何疑問(wèn)歡迎給我留言,小編會(huì)及時(shí)回復(fù)大家的!

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