谷歌浏览器如何知道我目前的GPS位置以及如何在我的代码中使用它? [英] How Google Chrome knows my current GPS location and how to use it in my code?
本文介绍了谷歌浏览器如何知道我目前的GPS位置以及如何在我的代码中使用它?的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
这是如何工作的?有一个 API 可以使用它吗?
解决方案
实际的HTML 5地理定位功能(仅当您的浏览器支持时):
if(navigator.geolocation){
navigator.geolocation.getCurrentPosition(success ,错误);
} else {
alert(Not Supported!);
}
函数成功(位置){
console.log(position.coords.latitude);
console.log(position.coords.longitude);
函数错误(msg){
console.log(typeof msg =='string'?msg:error);
watchId = navigator.geolocation.watchPosition(function(position){
console.log(position.coords.latitude);
console.log position.coords.longitude);
});
navigator.geolocation.clearWatch(watchId);
问候,
Sascha
today i realize that some pages can locate me (im using a laptop with no gps built-in) using google chrome with a an very impresive exactitude, i know that using my IP you can locate me, but not with such presision. Now in google maps you will see a button on top of the yellow men (street view) who locates you using google chrome.
How does this work? There is an API to use that?
解决方案
It's also possible with the actual HTML 5 Geolocation functions (only if your browser supports):
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(success, error);
} else {
alert("Not Supported!");
}
function success(position) {
console.log(position.coords.latitude);
console.log(position.coords.longitude);
}
function error(msg) {
console.log(typeof msg == 'string' ? msg : "error");
}
var watchId = navigator.geolocation.watchPosition(function(position) {
console.log(position.coords.latitude);
console.log(position.coords.longitude);
});
navigator.geolocation.clearWatch(watchId);
Greetings, Sascha
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