devicechange

这篇翻译不完整。请帮忙从英语翻译这篇文章

每当媒体设备(例如相机,麦克风或扬声器)连接到系统或从系统中移除时,devicechange 事件就会被发送到 MediaDevices  实例。 这是一个没有附加属性的通用 Event

一般信息

规范
Media Capture and Streams
接口
Event
是否冒泡
No
是否可取消
No
对象
MediaDevices
默认动作
None

属性

Property Type Description
target只读 EventTarget 事件对象 (位于DOM树最上面的元素).
type 只读 DOMString 事件类型.
bubbles 只读 Boolean 是否冒泡
cancelable 只读 Boolean 是否可被取消

相关事件

.

样例

有关使用 devicechange 事件更新屏幕上设备列表的示例,请参阅 Example in MediaDevices.ondevicechange

Specifications

Specification Status Comment
Media Capture and Streams
devicechange
Candidate Recommendation Initial specification.

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!

Feature Chrome Firefox (Gecko) Edge Internet Explorer Opera Safari (WebKit)
Basic support 52.0 51 (51)[1] (Yes) ? ? 39 ?
Feature Android Android Webview Edge Firefox Mobile (Gecko) Firefox OS IE Mobile Opera Mobile Safari Mobile Chrome for Android
Basic support 未实现 未实现 (Yes) ? ? ? 39 ? 未实现

[1] Support for the devicechange event and for MediaDevices.ondevicechange landed in Firefox 51, but only for Mac, and disabled by default. It can be enabled by setting the preference media.ondevicechange.enabled to true. Support for this event was added for Linux and Windows—and it was enabled by default—starting in Firefox 52.

See also

文档标签和贡献者

此页面的贡献者: xiaosongxiaosong
最后编辑者: xiaosongxiaosong,