我正在寻找创建声音按钮。
在这里使用了答案: Buttons click Sounds
并实现它,以便按钮是div并从MySQL DB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,我想在点击时将一个CSS类应用于div,然后当音频完成时,希望它切换回原来的CSS类。
这是我尝试过的。声音播放正确但引发的功能不会触发。
<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>
答案 0 :(得分:1)
如果您使用的是HTML5音频,则可以执行以下操作:
mySound.addEventListener("ended", function()
{
alert("The audio has ended");
});
编辑:
尝试更改您创建音频标记的方式,如引用here。
$('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");
});
});
答案 1 :(得分:1)
<audio>
和new Audio()
应该相同,但看起来不一样 在实践中就是这样。每当我需要创建音频时 JavaScript中的对象我实际上只是创建了一个元素 这样:
结束事件是基于.currentTime属性创建的。 event-media-ended
canplaythrough事件用于了解浏览器何时完成下载音频文件,我们可以播放
代码完整使用closest
<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>