Heim > Artikel > Web-Frontend > Grafikbeispiel für die HTML5-Audiowiedergabe
Die einfache Audiowiedergabe auf Basis von HTML5 ist recht gut und kann als Referenz verwendet werden. Der Code ist unten
<!doctype html> <html lang="en"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width,initial-scale=1 user-scalable=0"/> <link rel="shortcut icon" href="img/logo.png"> <title>html5 audio音频播放</title> <style> *{ margin: 0; padding:0;} body{-webkit-tap-highlight-color: rgba(0,0,0,0); font-family: "微软雅黑"} h1{ width: 100%; font-size: 1.5em; text-align: center; line-height: 3em; color:#47c9af; } #audio{ width: 100%;} #control{ width: 150px; height: 150px; line-height: 150px; text-align: center; border-radius: 200px; border:none; color:#fff; margin-top: -75px; margin-left:-75px; left:50%; top:50%; position: absolute; box-shadow: #888 0 0 8px;} .color_gray{ background: #e4e4e4} .hide{ display: none;} .show{ display: block;} .play{ background: #f06060;} .pause{ background:skyblue} /*进度条样式*/ .progressBar{ width: 100%; height: 10px;margin: 30px auto 30px auto; position:absolute; left: 0; bottom: 35px;} .progressBar p{ position: absolute;} .progressBar .progressBac{ width: 100%; height: 10px; left: 0; top:0; background: #e4e4e4;} .progressBar .speed{width: 100%; height: 10px; left: -100%; background: #f06060; } .progressBar .drag{ width: 30px; height: 30px; left: 0; top:-10px; background: skyblue; opacity: 0.8; border-radius: 50px; box-shadow: #fff 0 0 5px;} /*时间样式*/ #time{ width: 100%; height: 20px;position: absolute; left: 0; bottom:30px; color:#888;} .tiemDetail{ position: absolute; right:10px; top:0;} #songInfo{overflow: hidden; width: 200px; height:50px; line-height: 50px; text-align: center; color:#34495e; margin-top: -25px; margin-left:-100px; left:50%; top:70%; position: absolute;} .shareImg{ position: absolute; left: 100000px;} </style> </head> <body> <script> $(function() { getSong(); }) //获取歌曲链接并插入dom中 function getSong() { var audio = document.getElementById("audio"); audio.src = "http://frontman.qiniudn.com/songnotime.mp3"; audio.loop = true; //歌曲循环 playCotrol(); //播放控制函数 } //点击播放/暂停 function clicks() { var audio = document.getElementById("audio"); $("#control").click(function() { if ($("#control").hasClass("play")) { $("#control").addClass("pause").removeClass("play"); audio.play();//开始播放 dragMove();//并且滚动条开始滑动 $("#control").html("暂停播放"); } else { $("#control").addClass("play").removeClass("pause"); $("#control").html("点击播放"); audio.pause(); } }) } //播放时间 function timeChange(time, timePlace) {//默认获取的时间是时间戳改成我们常见的时间格式 var timePlace = document.getElementById(timePlace); //分钟 var minute = time / 60; var minutes = parseInt(minute); if (minutes < 10) { minutes = "0" + minutes; } //秒 var second = time % 60; seconds = parseInt(second); if (seconds < 10) { seconds = "0" + seconds; } var allTime = "" + minutes + "" + ":" + "" + seconds + "" timePlace.innerHTML = allTime; } //播放事件监听 function playCotrol() { audio.addEventListener("loadeddata", //歌曲一经完整的加载完毕( 也可以写成上面提到的那些事件类型) function() { $("#control").addClass("play").removeClass("color_gray"); $("#control").html("点击播放"); addListenTouch(); //歌曲加载之后才可以拖动进度条 var allTime = audio.duration; timeChange(allTime, "allTime"); setInterval(function() { var currentTime = audio.currentTime; $("#time .currentTime").html(timeChange(currentTime, "currentTime")); }, 1000); clicks(); }, false); audio.addEventListener("pause", function() { //监听暂停 $("#control").addClass("play").removeClass("pause"); $("#control").html("点击播放"); if (audio.currentTime == audio.duration) { audio.stop(); audio.currentTime = 0; } }, false); audio.addEventListener("play", function() { //监听暂停 $("#control").addClass("pause").removeClass("play"); $("#control").html("暂停播放"); dragMove(); }, false); audio.addEventListener("ended", function() { alert(0) }, false) } //进度条 这里我用的是事件实现进度拖动 如果不太熟悉touch的可以看下我之前写的一个小demo http://www.cnblogs.com/leinov/p/3701951.html var startX, x, aboveX = 0; //触摸时的坐标 //滑动的距离 //设一个全局变量记录上一次内部块滑动的位置 //1拖动监听touch事件 function addListenTouch() { document.getElementById("drag").addEventListener("touchstart", touchStart, false); document.getElementById("drag").addEventListener("touchmove", touchMove, false); document.getElementById("drag").addEventListener("touchend", touchEnd, false); var drag = document.getElementById("drag"); var speed = document.getElementById("speed"); } //touchstart,touchmove,touchend事件函数 function touchStart(e) { e.preventDefault(); var touch = e.touches[0]; startX = touch.pageX; } function touchMove(e) { //滑动 e.preventDefault(); var touch = e.touches[0]; x = touch.pageX - startX; //滑动的距离 //drag.style.webkitTransform = 'translate(' + 0+ 'px, ' + y + 'px)'; //也可以用css3的方式 drag.style.left = aboveX + x + "px"; // speed.style.left = -((window.innerWidth) - (aboveX + x)) + "px"; } function touchEnd(e) { //手指离开屏幕 e.preventDefault(); aboveX = parseInt(drag.style.left); var touch = e.touches[0]; var dragPaddingLeft = drag.style.left; var change = dragPaddingLeft.replace("px", ""); numDragpaddingLeft = parseInt(change); var currentTime = (numDragpaddingLeft / (window.innerWidth - 30)) * audio.duration;//30是拖动圆圈的长度,减掉是为了让歌曲结束的时候不会跑到window以外 audio.currentTime = currentTime; } //3拖动的滑动条前进 function dragMove() { setInterval(function() { drag.style.left = (audio.currentTime / audio.duration) * (window.innerWidth - 30) + "px"; speed.style.left = -((window.innerWidth) - (audio.currentTime / audio.duration) * (window.innerWidth - 30)) + "px"; }, 500); } </script> <h1>html5 audio 音频播放demo</h1> <!--audiostart--> <audio id="audio" src="" loop="loop" autoplay="autoplay" ></audio> <!--audio End--> <!--播放控制按钮start--> <button id="control" class="">loading</button> <!--播放控制按钮end--> <!--时间进度条块儿start--> <section class="progressBar"> <p class="progressBac"></p> <p class="speed" id="speed"></p> <p class="drag" id="drag"></p> </section> <!--时间进度条块儿end--> <!--播放时间start--> <p id="time"><p class="tiemDetail"><span class="currentTime" id="currentTime">00:00</span>/<span class="allTime" id="allTime">00:00</span></p></p> <!--播放时间end--> <!--歌曲信息start--> <p id="songInfo">没时间-Leinov<p class="shareImg"><img src="img/html5audio.jpg" alt=""></p></p> <!--歌曲信息end--> <script src="js/zepto.js"></script> </body> </html>
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