动态更改源后加载音频元素 [英] Loading Audio Element After Dynamically Changing the Source

问题描述

我的页面正文中有几个音频元素。它们看起来像这样。

I have a couple of audio elements that appear in the body of my page. They look like this.

      <audio id="sound1" preload="auto">
      <source id="sound1source" src="../../Content/Audio/gau.mp3">
      //add .ogg here later
      </audio>
      <audio id="sound2" preload="auto">
      <source id="sound2source" src="../../Content/Audio/mah.mp3">
      //add .ogg here later
      </audio>

当用户将鼠标悬停在某些div上时播放音频。这是触发它的代码。

The audio plays when a user mouses over certain divs. Here's the code that triggers it.

var audio = $("#sound1")[0];
$("#ChoiceA").mouseenter(function () {
    audio.play();
});
var audio2 = $("#sound2")[0];
$("#ChoiceB").mouseenter(function () {
    audio2.play();
});

以上所有内容均可正常使用。当我尝试在进行ajax调用后动态更改源元素时，会出现问题。这是我的javascript实现的。

Everything above works fine. My problem occurs when I attempt to dynamically change the source element after making an ajax call. Here's my javascript that accomplishes that.

var src1 = "../../Content/Audio/" + data.nouns[0].Audio1 + ".mp3";
var src2 = "../../Content/Audio/" + data.nouns[1].Audio1 + ".mp3";

$("#sound1source").attr("src", src1);
$("#sound2source").attr("src", src2);

当我在触发ajax调用后检查页面以更改音频元素的源路径时，我看到源已更新。没问题。问题是新路径所指向的音频没有播放。

When I inspect the page after triggering the ajax call to change the source path for the audio elements, I see that the source is updated. No problem there. The problem is that the audio that the new paths point to does not play.

在打猎之后，我在 w3.org 当元素已插入视频或音频元素时，动态修改源元素及其属性将要改变正在播放的内容，要么直接在媒体元素上使用src属性，要么在操作源元素后调用media元素上的load（）方法。

w3.org上的评论似乎是相关的所以我试着调用$（'＃sound1'）。load（）以及$（'＃sound1source'）。load（）。也没有解决我的问题。

The comment on w3.org seems to be related so I tried calling $('#sound1').load() and also $('#sound1source').load(). Neither solved my problem.

有人能告诉我我做错了什么吗？如果我需要在动态更改src后再次加载音频元素，我该怎么做？

Can someone tell me what I've done wrong? If I need to cause the audio element to load again after dynamically changing the src, how do I do that?

------------ -UPDATE -------------

-------------UPDATE-------------

基于Swatkins建议我创建了以下函数来创建音频标签，当用户将鼠标悬停在目标div。不幸的是，这也没有解决问题。

Based on Swatkins suggestion I created the following function to create the audio tag when the user mouses over the target div. Unfortunately this has not solved the problem either.

    function attachAudio1(src) {

        $('#audio1').remove();
        var audio = $('<audio>');
        audio.attr("src", src);
        audio.attr("id", "audio1");
        audio.appendTo('body');
        attachPlayAction();
    };

    function attachPlayAction() {
        var audio = $("#audio1")[0];
        $('#ChoiceA').live('mouseenter', function () {
            audio.play();
        });


    };

推荐答案

你应该像这样调用load：

You should call load like this:

var audio = $("#sound1")[0];
$("#ChoiceA").mouseenter(function () {
   audio.load();
   audio.play();
});
var audio2 = $("#sound2")[0];
$("#ChoiceB").mouseenter(function () {
   audio.load();
   audio2.play();
});

没有像上面那样测试它，但是先测试过这个单独的函数，看起来像这样：

Have not tested doing it like above, but have testet this previously with a seperate function looking something like this:

<audio id="sound1" preload="auto" src="../../Content/Audio/gau.mp3">

function changeAudio(){
    audio = document.getElementById("sound1");
    audio.src = "../../Content/Audio/" + data.nouns[0].Audio1 + ".mp3";
    audio.load();
    audio.play();
}

$("#ChoiceA").mouseenter(function () {
    changeAudio();
});

这对我有用吗？

编辑：添加小提琴，也许这可以帮助您解决这个问题？

Adding a fiddle, maybe that will help you figure this out?

< a href =http://jsfiddle.net/Z3VrV/ =noreferrer> http://jsfiddle.net/Z3VrV/

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