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• 句法
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

onstatechange 特性为 BaseAudioContext interface defines an event handler function to be called when the statechange event fires: this occurs when the audio context's state changes.

句法

baseAudioContext.onstatechange = function() { ... };
					

范例

The following snippet is taken from our AudioContext states demo ( see it running live .) The onstatechange hander is used to log the current state to the console every time it changes.

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

规范

规范	状态	注释
Web 音频 API The definition of 'onstatechange' in that specification.	工作草案

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
onstatechange	Chrome 43	Edge ≤79	Firefox 53 53 注意事项 注意事项 Originally implemented on AudioContext in Firefox 40.	IE 不支持 No	Opera Yes	Safari 9 Prefixed 9 Prefixed Prefixed Implemented with the vendor prefix: webkit	WebView Android Yes	Chrome Android Yes	Firefox Android 53 53 注意事项 注意事项 Originally implemented on AudioContext in Firefox Android 40.	Opera Android Yes	Safari iOS 9 Prefixed 9 Prefixed Prefixed Implemented with the vendor prefix: webkit	Samsung Internet Android Yes

图例

完整支持

完整支持

不支持

不支持

见实现注意事项。

见实现注意事项。

要求使用供应商前缀或不同名称。

要求使用供应商前缀或不同名称。

另请参阅

• 使用 Web 音频 API

元数据

• 最后修改： Jun 27, 2019

相关话题

1. Web 音频 API
2. BaseAudioContext
3. 特性

   1. audioWorklet
   2. currentTime
   3. destination
   4. listener
   5. sampleRate
   6. state
4. 方法

   1. createAnalyser()
   2. createBiquadFilter()
   3. createBuffer()
   4. createBufferSource()
   5. createChannelMerger()
   6. createChannelSplitter()
   7. createConstantSource()
   8. createConvolver()
   9. createDelay()
   10. createDynamicsCompressor()
   11. createGain()
   12. createIIRFilter()
   13. createOscillator()
   14. createPanner()
   15. createPeriodicWave()
   16. createScriptProcessor()
   17. createStereoPanner()
   18. createWaveShaper()
   19. decodeAudioData()
5. 继承：

   1. EventTarget
6. Related pages for Web Audio API

   1. AnalyserNode
   2. AudioBuffer
   3. AudioBufferSourceNode
   4. AudioContext
   5. AudioContextOptions
   6. AudioDestinationNode
   7. AudioListener
   8. AudioNode
   9. AudioNodeOptions
   10. AudioParam
   11. AudioProcessingEvent
   12. AudioScheduledSourceNode
   13. AudioWorklet
   14. AudioWorkletGlobalScope
   15. AudioWorkletNode
   16. AudioWorkletProcessor
   17. BiquadFilterNode
   18. ChannelMergerNode
   19. ChannelSplitterNode
   20. ConstantSourceNode
   21. ConvolverNode
   22. DelayNode
   23. DynamicsCompressorNode
   24. GainNode
   25. IIRFilterNode
   26. MediaElementAudioSourceNode
   27. MediaStreamAudioDestinationNode
   28. MediaStreamAudioSourceNode
   29. OfflineAudioCompletionEvent
   30. OfflineAudioContext
   31. OscillatorNode
   32. PannerNode
   33. PeriodicWave
   34. StereoPannerNode
   35. WaveShaperNode