AudioContext.state - Web API 接口参考 编辑

AudioContext的state属性是只读的，返回AudioContext的当前状态。

语法

var audioCtx = new AudioContext();
var myState = audioCtx.state;

返回值

DOMString，可能的值如下：

• suspended: audio context被阻塞了(用AudioContext.suspend() 方法)
• running: audio context正常运行
• closed: audio context被关闭了(用AudioContext.close()方法)

例子

下面这段代码是AudioContext states demo (直接运行)中的，其中AudioContext.onstatechange处理器会在每次当前状态发生变化时把它输出到控制台。

audioCtx.onstatechange = function() {
  console.log(audioCtx.state);
}

规范

Specification	Status	Comment
Web Audio API state	Working Draft

浏览器兼容性

We're converting our compatibility data into a machine-readable JSON format. This compatibility table still uses the old format, because we haven't yet converted the data it contains. Find out how you can help!

• Desktop
• Mobile

Feature	Chrome	Firefox (Gecko)	Internet Explorer	Opera	Safari (WebKit)
Basic support	43.0	40.0 (40.0)	未实现	?	?

Feature	Android	Firefox Mobile (Gecko)	Firefox OS	IE Mobile	Opera Mobile	Safari Mobile	Chrome for Android
Basic support	?	?	?	?	?	?	?

另见

• Using the Web Audio API