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• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

Navigator.mediaDevices 只读特性返回 MediaDevices object, which provides access to connected media input devices like cameras and microphones, as well as screen sharing.

句法

var mediaDevices = navigator.mediaDevices;
					

返回值

MediaDevices singleton object. Usually, you just use this object's members directly, such as by calling navigator.mediaDevices.getUserMedia() .

规范

规范	状态	注释
媒体捕获和流 The definition of 'NavigatorUserMedia.mediaDevices' in that specification.	候选推荐	初始定义。

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
mediaDevices	Chrome 51	Edge 12	Firefox 36	IE Yes	Opera No	Safari No	WebView Android 51	Chrome Android 51	Firefox Android 36	Opera Android No	Safari iOS No	Samsung Internet Android 5.0
Secure context required	Chrome 74	Edge 79	Firefox 69	IE No	Opera No	Safari No	WebView Android 74	Chrome Android 74	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 11.0

图例

完整支持

完整支持

不支持

不支持

另请参阅

• Media Capture and Streams API : The entry point to the documentation about the entire media stream API.
• WebRTC API : Documentation about the WebRTC API, which is closely related.

元数据

• 最后修改： Jan 25, 2020

相关话题

1. Media Streams API
2. Navigator
3. 特性

   1. activeVRDisplays
   2. appCodeName
   3. appName
   4. appVersion
   5. battery
   6. buildID
   7. clipboard
   8. connection
   9. cookieEnabled
   10. credentials
   11. deviceMemory
   12. doNotTrack
   13. geolocation
   14. keyboard
   15. 语言
   16. languages
   17. locks
   18. maxTouchPoints
   19. mediaDevices
   20. mediaSession
   21. onLine
   22. oscpu
   23. permissions
   24. platform
   25. product
   26. productSub
   27. serviceWorker
   28. userAgent
   29. vendor
   30. vendorSub
   31. webdriver
   32. xr
4. 方法

   1. canShare()
   2. getBattery()
   3. getGamepads()
   4. getUserMedia()
   5. getVRDisplays()
   6. mozIsLocallyAvailable()
   7. msLaunchUri()
   8. registerContentHandler()
   9. registerProtocolHandler()
   10. requestMediaKeySystemAccess()
   11. sendBeacon()
   12. share()
   13. taintEnabled()
   14. vibrate()
5. Related pages for Media Capture and Streams

   1. AudioStreamTrack
   2. BlobEvent
   3. CanvasCaptureMediaStream
   4. ConstrainBoolean
   5. ConstrainDOMString
   6. ConstrainDouble
   7. ConstrainLong
   8. DoubleRange
   9. HTMLCanvasElement.captureStream()
   10. LongRange
   11. MediaDevices
   12. MediaStream
   13. MediaStreamTrack
   14. MediaStreamTrackEvent
   15. MediaTrackCapabilities
   16. MediaTrackConstraints
   17. MediaTrackSettings
   18. MediaTrackSupportedConstraints
   19. Navigator.mediaDevices
   20. NavigatorUserMedia
   21. NavigatorUserMediaError
   22. VideoStreamTrack
   23. navigator.mediaDevices.getUserMedia()