在此页

• 句法
• 用法注意事项
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

只读 xr property provided by the Navigator or WorkerNavigator interface returns an XR object which can be used to access the WebXR 设备 API .

句法

const xr = navigator.xr
					

值

XR object used to interface with the WebXR 设备 API in the current context. This can be used to present augmented and/or virtual reality imagery to the user.

用法注意事项

每个 Window has its own instance of Navigator , which can be accessed as Window.navigator or simply as navigator . At the same time, a new XR instance is also created and attached to the navigator instance as navigator.xr 。若 xr property exists and is non- null , you can use it to access the WebXR 设备 API .

To determine if WebXR is available, you can do something like this:

if ("xr" in Window.navigator) {
  /* WebXR can be used! */
} else {
  /* WebXR isn't available */
}
					

规范

规范	状态	注释
WebXR 设备 API The definition of 'Navigator.xr' in that specification.	工作草案	初始定义。

浏览器兼容性

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
xr	Chrome 79	Edge 79	Firefox No	IE No	Opera No	Safari No	WebView Android No	Chrome Android 79	Firefox Android No	Opera Android No	Safari iOS No	Samsung Internet Android 11.2

图例

完整支持

完整支持

不支持

不支持

实验。期望将来行为有所改变。

实验。期望将来行为有所改变。

另请参阅

• WebGL API : 2D and 3D accelerated graphics for the web
• 画布 API : Easy 2D graphics API

元数据

• 最后修改： Oct 7, 2019

相关话题

1. WebXR 设备 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 WebXR Device API

   1. Navigator.xr
   2. WebGLRenderingContext.makeXRCompatible()
   3. XR
   4. XRBoundedReferenceSpace
   5. XRFrame
   6. XRInputSource
   7. XRInputSourceArray
   8. XRInputSourceEvent
   9. XRInputSourcesChangeEvent
   10. XRPose
   11. XRReferenceSpace
   12. XRReferenceSpaceEvent
   13. XRRenderState
   14. XRRigidTransform
   15. XRSession
   16. XRSessionEvent
   17. XRSpace
   18. XRView
   19. XRViewerPose
   20. XRViewport
   21. XRWebGLLayer