PositionOptions

Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers .

PositionOptions dictionary describes an object containing option properties to pass as a parameter of Geolocation.getCurrentPosition() and Geolocation.watchPosition() .

特性

PositionOptions.enableHighAccuracy Secure context
Boolean that indicates the application would like to receive the best possible results. If true and if the device is able to provide a more accurate position, it will do so. Note that this can result in slower response times or increased power consumption (with a GPS chip on a mobile device for example). On the other hand, if false , the device can take the liberty to save resources by responding more quickly and/or using less power. Default: false .
PositionOptions.timeout Secure context
Is a positive long value representing the maximum length of time (in milliseconds) the device is allowed to take in order to return a position. The default value is Infinity , meaning that getCurrentPosition() won't return until the position is available.
PositionOptions.maximumAge Secure context
Is a positive long value indicating the maximum age in milliseconds of a possible cached position that is acceptable to return. If set to 0 , it means that the device cannot use a cached position and must attempt to retrieve the real current position. If set to Infinity the device must return a cached position regardless of its age. Default: 0.

规范

规范 状态 Comment
地理位置 API
The definition of 'PositionOptions' in that specification.
Recommendation 初始定义

浏览器兼容性

更新 GitHub 上的兼容性数据
Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari Android webview Chrome for Android Firefox for Android Opera for Android Safari on iOS Samsung Internet
PositionOptions Chrome 5 Edge 12 Firefox 3.5 IE 9 Opera 16
16
不支持 10 — 15
Safari 5 WebView Android Yes Chrome Android 18 Firefox Android 4 Opera Android 16
16
不支持 10.1 — 14
Safari iOS 5 Samsung Internet Android 1.0
enableHighAccuracy Chrome 5 Edge 12 Firefox 3.5 IE 9 Opera 16
16
不支持 10 — 15
Safari 5 WebView Android Yes Chrome Android 18 Firefox Android 4 Opera Android 16
16
不支持 10.1 — 14
Safari iOS Yes Samsung Internet Android 1.0
maximumAge Chrome 5 Edge 12 Firefox 3.5 IE 9 Opera 16
16
不支持 10 — 15
Safari 5 WebView Android Yes Chrome Android 18 Firefox Android 4 Opera Android 16
16
不支持 10.1 — 14
Safari iOS Yes Samsung Internet Android 1.0
Secure context required Chrome 50 Edge ≤79 Firefox 55 IE No Opera 37 Safari Yes WebView Android 51
51
Secure context is only required for applications targeting Android Nougat (7) and higher. See bug 603574 .
Chrome Android 50 Firefox Android 55 Opera Android 37 Safari iOS Yes Samsung Internet Android 5.0
timeout Chrome 5 Edge 12 Firefox 3.5 IE 9 Opera 16
16
不支持 10 — 15
Safari 5 WebView Android Yes Chrome Android 18 Firefox Android 4 Opera Android 16
16
不支持 10.1 — 14
Safari iOS Yes Samsung Internet Android 1.0

图例

完整支持
完整支持
不支持
不支持
见实现注意事项。

另请参阅