HTML5音頻（自定義mp3播放器源碼）

時間 2020-01-09

標籤 html5 html 音頻自定義 mp3 播放源碼欄目 HTML5 简体版

原文原文鏈接

audio對象javascript

src兼容.ogg .wav .mp3css

    <audio controls src='data/imooc.wav'></audio>

width autoplay loop muted靜音html

    <audio controls src='data/imooc.wav' autoplay loop width='500' height='500' muted></audio>

播放play()java

        var myAudio = new Audio();
        myAudio.src = 'data/imooc.wav';
        myAudio.play();
        btn.onclick = function(){
            myAudio.play();
        };

暫停pause()web

            pauseNode.onclick = function(){
                myAudio.pause();
            };

當前播放的時間currentTime算法

音頻總時長duration數組

            //返回音頻的總長度
            myAudio.addEventListener('canplay',function(){
                durationNode.innerHTML = myAudio.duration;
            });
            //更新當前播放的時間
            setInterval(function(){
                currentNode.innerHTML = myAudio.currentTime;
            },100);

音頻源currentSrc瀏覽器

        var myAudio = new Audio();
        myAudio.src = 'data/imooc.mp3';
        console.log(myAudio.currentSrc);

loop循環函數

        myAudio.loop = true;

音頻播放結束endedoop

        myAudio.addEventListener('ended',function(){
            console.log('音頻播放結束');
            console.log(myAudio.ended)
        });

從新加載

        loadBtn.onclick = function(){
            myAudio.load();
        };

跳轉到新的播放位置seeked / seeking

        myAudio.addEventListener('seeked',function(){
            console.log('seeked');
        });
        myAudio.addEventListener('seeking',function(){
            console.log('seeking');
            sekingNum++;
            seekingNum.innerHTML = sekingNum;
        });

playbackRate設置當前播放速度

        myAudio.playbackRate = '15';
        console.log(myAudio.playbackRate)

全屏requestFullScreen

        btnScreen.onclick = function(){
            myAudio.webkitRequestFullScreen();
        }

loop 循環

        myAudio.loop = true;

volumechange音量改變

        myAudio.addEventListener('volumechange',function(){
            console.log('音頻的聲音改變了')
        });

timeupdate音頻正在播放狀態

        myAudio.addEventListener('timeupdate',function(){
            console.log('音頻正在播放中...')
        })

自定義mp3播放器
放圖

<!doctype html> 
<html> 
<head> 
    <meta charset="utf-8"> 
    <title></title> 
    <style type="text/css">
*{margin: 0;padding: 0;list-style: none;}        
.outerNode{width: 505px;height: 406px;position: absolute;left: 50%;top: 50%;margin: -204px 0 0 -253.5px;border: 1px solid #a6a18d;border-radius:8px;box-shadow: 0 0 16px #a6a18d; }
.innerNode{width: 503px;height: 405px;border-top:1px solid #e1d1b9;border-left:1px solid #ceccbf;border-radius: 8px;overflow: hidden;border-right:1px solid #ceccbf;   }
.topNode{width: 100%;height: 198px;border-bottom: 1px solid #787463;background: url(music/pic/fmt01.jpg) center center;background-size:cover; transition:.7s;position: relative;}
.lineNode{
    width: 100%;height: 46px;border-top: 1px solid #f9f7ee;border-bottom: 1px solid #a29d8a;background: url(musicimage/linebg.jpg) repeat-x; 
}
.progressNode{width: 440px;height: 18px;float: left;margin:13px 0 0 28px;background: url(musicimage/progressbg.jpg) repeat-x;position: relative; }
.progressNode .progressleft{
    width: 7px;height: 100%;position: absolute;left: 0;
    background: url(musicimage/leftNode.jpg);
}
.progressNode .progressright{
    width: 7px;height: 100%;position: absolute;right: 0;
    background: url(musicimage/rightNode.jpg);
}
.bottomNode{
    width: 100%;height: 157px;border-top: 1px solid #a29d8a;
    background: url(musicimage/bottombg.jpg) repeat-x;position: relative;
}
.lastNode{width: 75px;height: 74px;position: absolute;background: url(musicimage/lastBg.png) no-repeat;left: 118px;top: 39px;cursor: pointer;}
.playNode{width: 95px;height: 94px;position: absolute;background: url(musicimage/playNode.png) no-repeat;left: 202px;top: 29px;cursor: pointer;}
.nextNode{width: 75px;height: 74px;background: url(musicimage/rightbg.png) no-repeat;position: absolute;left: 306px;top: 39px;cursor: pointer;}
.volumeNode{width: 37px;height: 32px;background: url(musicimage/volume.png) no-repeat; position: absolute;right: 43px;top: 58px;cursor: pointer;}
.no_volumeNode{width: 37px;height: 32px;background: url(musicimage/no_volume.png) no-repeat; position: absolute;right: 43px;top: 58px;cursor: pointer;}

.trueLine{position: absolute;left: 3px;top: 2px;height: 12px;width: 0%;
    background: url(musicimage/green_bg.png) repeat-x;border-radius: 6px; 
    border-right: 1px solid #787463;

}
.musicName{color: white;position: absolute;bottom: 2px;left: 5px;}

    </style>
</head>
<body>
    <!-- outerNode 最外層的元素 -->
    <div class='outerNode'>
        <!-- innerNode 內層元素 -->
        <div class='innerNode'>
            <!-- topNode 封面圖元素 -->
            <div class='topNode'>
                <!-- 音樂名稱 -->
                <div class='musicName'></div>
            </div>
            <!-- lineNode 進度條元素 -->
            <div class='lineNode'>
                <!-- 進度條-->
                <div class='progressNode'>
                    <div class='progressleft'></div>
                    <div class='progressright'></div>
                    <!-- 真正的進度條 -->
                    <div class='trueLine'></div>
                </div>
            </div>
            <!-- bottomNode 空間元素 -->
            <div class='bottomNode'>
                <!-- lastNode 上一曲的按鈕-->
                <div class='lastNode'></div>
                <!-- playNode 播放暫停的按鈕 -->
                <div class='playNode'></div>
                <!-- nextNode 下一曲的按鈕 -->
                <div class='nextNode'></div>
                <!-- volumeNode 靜音或非靜音的按鈕-->
                <div class='volumeNode'></div>
            </div>
        </div>
    </div>
    <script type="text/javascript">
        //播放暫停的按鈕
        //playBln 控制播放暫停的布爾值
        var playBtn = document.querySelector('.playNode'),
        playBln = true,
        //控制聲音的按鈕
        //volumeBln 控制聲音的布爾值
        volumeNode = document.querySelector('.volumeNode'),
        volumeBln = true,
        //進度條的選擇器
        trueLine = document.querySelector('.trueLine'),
        //進度條外層的元素
        progressNode = document.querySelector('.progressNode'),
        //最外層元素
        outerNode = document.querySelector('.outerNode'),
        //選擇一下封面背景
        topNode = document.querySelector('.topNode'),
        //下一首歌的按鈕
        nextNode = document.querySelector('.nextNode'),
        //上一首歌的按鈕
        lastNode = document.querySelector('.lastNode'),
        //音樂名稱
        musicName = document.querySelector('.musicName');

        //給播放器添加js
        //建立audio對象
        var myAudio = new Audio();
        //給audio對象一個 src
        //全部的數據存在數組裏面
        let allMusic = [{
            'MusicSrc':'music/mus/AcousticGuitar1.mp3',
            'MusicPic':'music/pic/fmt01.jpg',
            'MusicName':'AcousticGuitar1'
        },{
            'MusicSrc':'music/mus/AmazingGrace.mp3',
            'MusicPic':'music/pic/fmt02.png',
            'MusicName':'AmazingGrace'

        },{
            'MusicSrc':'music/mus/FeelsGood2B.mp3',
            'MusicPic':'music/pic/fmt03.jpg',
            'MusicName':'FeelsGood2B'

        },{
            'MusicSrc':'music/mus/FunBusyIntro.mp3',
            'MusicPic':'music/pic/fmt04.jpg',
            'MusicName':'FunBusyIntro'

        },{
            'MusicSrc':'music/mus/GreenDaze.mp3',
            'MusicPic':'music/pic/fmt05.jpg',
            'MusicName':'GreenDaze'

        },{
            'MusicSrc':'music/mus/Limosine.mp3',
            'MusicPic':'music/pic/fmt06.jpg',
            'MusicName':'Limosine'

        }],Index = 0;
        myAudio.src = allMusic[Index].MusicSrc;

        //給封面賦值
        topNode.style.backgroundImage = 'url('+allMusic[Index].MusicPic+')';

        //給音樂名稱
        musicName.innerHTML = allMusic[Index].MusicName;

        //谷歌瀏覽器不容許直接play
        //myAudio.play();

        //播放暫停的事件
        playBtn.onclick = function(){
            //myAudio.play();
            playBln = !playBln;
            if(playBln == false){
                myAudio.play();
            }
            else{
                myAudio.pause();
            }
        };

        //聲音的事件
        volumeNode.onclick = function(){
            volumeBln = !volumeBln;
            if(volumeBln == false){
                myAudio.volume = 0;
                this.className = 'no_volumeNode';
            }
            else{
                myAudio.volume = 1;
                this.className = 'volumeNode';
            }
        };

        //播放時 進度條的長度控制計算
        myAudio.addEventListener('timeupdate',function(){
            trueLine.style.width = myAudio.currentTime / myAudio.duration * 100 + '%';
        });

        //點擊progressNode元素 讓進度條直接到達這個位置
        progressNode.onclick = function(e){
            var ev = e || event;
            //算法 就是 算出 點擊的位置 在 外層進度條的 多少像素
            //須要一個鼠標座標點 減去 外層元素的 offsetLeft 和 最外層元素的offsetLeft 

            // 320秒 *  0.50 = 160秒
            myAudio.currentTime = myAudio.duration * ((ev.clientX - (this.offsetLeft + outerNode.offsetLeft))/this.offsetWidth);

            trueLine.style.width = ((ev.clientX - (this.offsetLeft + outerNode.offsetLeft))/this.offsetWidth) * 100 + '%';
        };

        //下一首歌的事件
        nextNode.onclick = function(){
            Index ++;
            if(Index == allMusic.length){
                Index = 0;
            }
            MusicPlayFn();
        };
        //音樂播放的函數
        function MusicPlayFn(){
            myAudio.src = allMusic[Index].MusicSrc;
            myAudio.currentTime = 0;
            trueLine.style.width = '0%';
            if(playBln == false){
                myAudio.play();
            }
            else{
                myAudio.pause();
            }

            //給封面賦值
            topNode.style.backgroundImage = 'url('+allMusic[Index].MusicPic+')';
            //給音樂名稱
            musicName.innerHTML = allMusic[Index].MusicName;
        }

        //上一首歌的點擊事件
        lastNode.onclick = function(){
            Index --;
            if(Index == -1){
                Index = allMusic.length-1;
            }
            MusicPlayFn();
        };

    </script>
</body>
</html>