过时
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
value
property of
DeviceProximityEvent
objects provides the current distance between the device and the detected object, in centimeters.
var distance = instanceOfDeviceProximityEvent.value;
A positive number representing a distance in centimeters (cm) between the device's proximity sensor and the detected object.
| 桌面 | 移动 | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
value
非标
|
Chrome No | Edge No |
Firefox
62
Disabled
|
IE No | Opera No | Safari No | WebView Android No | Chrome Android No |
Firefox Android
62
Disabled
|
Opera Android No | Safari iOS No | Samsung Internet Android No |
完整支持
不支持
实验。期望将来行为有所改变。
非标。预期跨浏览器支持较差。
见实现注意事项。
用户必须明确启用此特征。
DeviceProximityEvent