我希望创建声音按钮。
在这里使用了答案:按键点击声音
并实现它,以便按钮是div,并从MySQL数据库动态创建。
有人知道如何在页面加载时预加载声音列表吗?
另外,我想应用一个CSS类的div点击时,然后当音频完成时,希望它切换回原来的CSS类。
这是我试过的。声音正常播放,但onended函数没有触发。
<script type='text/javascript'>
$(window).load(function(){
var baseUrl = "http://[URL HERE]";
var audio = [<?php echo $audiostring; ?>];
$('div.ci').click(function() {
var i = $(this).attr('id').substring(1);
mySound = new Audio(baseUrl + audio[i-1]).play();
mySound.onended = function() {
alert("The audio has ended");};
});
});
</script>
如果你使用的是HTML5音频,你可以这样做:
mySound.addEventListener("ended", function()
{
alert("The audio has ended");
});
编辑:试着改变你创建音频标签的方式,参考这里。
$('div.ci').click(function() {
var i = $(this).attr('id').substring(1);
mySound = $(document.createElement('audio'));
mySound.src = baseUrl + audio[i-1];
mySound.play();
mySound.addEventListener("ended", function()
{
alert("The audio has ended");
});
});
<audio>
和new Audio()
应该是相同的,但它看起来没有就像实际情况一样。当我需要创建音频时object中,我创建了一个元素:
ended事件是基于。currenttime属性创建的。event-media-ended
canplaythrough事件用于知道浏览器何时完成音频文件下载,我们可以播放
code complete use close
<style type="text/css">
body{background: #aaa;color:#fff;}
div
{
width: 100px;
height: 100px;
background: #dda;
}
</style>
</head>
<body>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.0/jquery.min.js"></script>
<div >
</div>
<div >
</div>
<div >
</div>
<script type="text/javascript">
$(window).load(function(){
var audioFiles = [
"http://www.soundjay.com/button/beep-01a.mp3",
"http://www.soundjay.com/button/beep-02.mp3",
"http://www.soundjay.com/button/beep-03.mp3",
"http://www.soundjay.com/button/beep-05.mp3"
];
function Preload(url) {
var audio = new Audio();
// once this file loads, it will call loadedAudio()
// the file will be kept by the browser as cache
audio.addEventListener('canplaythrough', loadedAudio, false);
audio.src = url;
}
var loaded = 0;
function loadedAudio() {
// this will be called every time an audio file is loaded
// we keep track of the loaded files vs the requested files
loaded++;
if (loaded == audioFiles.length){
// all have loaded
init();
}
}
var player = document.createElement('audio');
function playAudio(index) {
player.src = audioFiles[index];
player.play();
}
function init() {
$('div').click(function(event) {
$(this).css('background', 'blue');
playAudio(Math.floor(Math.random()*audioFiles.length));
player.addEventListener("ended", function(){
player.currentTime = 0;
$(event.target).closest('div').css('background', '#dda');
});
});
}
// We begin to upload files array
for (var i in audioFiles) {
Preload(audioFiles[i]);
}
});
</script>