AudioContext.onstatechange - Web API 接口参考 编辑

AudioContext的onstatechange属性定义了一个事件处理器函数，触发statechange会被调用，也就是说audio context的状态发生变化时会执行。

语法

var audioCtx = new AudioContext();
audioCtx.onstatechange = function() { ... };

例子

下面这段代码是AudioContext states DEMO (直接运行)中的，其中onstatechange处理器会在每次当前state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 onstatechange	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