javascript - js 地理定位但没有提示 - 可能吗？

Question

是否可以在没有浏览器提示的情况下获取用户的地理位置？

Here's the code sample from W3

<script>
   var x = document.getElementById("demo")

   function getLocation(){
     if(navigator.geolocation){
       navigator.geolocation.getCurrentPosition(showPosition);
     } else {
       x.innerHTML="Geolocation is not supported by this browser.";}
     }
     function showPosition(position){
       x.innerHTML="Latitude: " + position.coords.latitude + 
       "<br>Longitude: " + position.coords.longitude;   
     }
</script>

是否有类似 preventPrompt() 的函数？

Answer 1

不，您不能阻止提示，这是一项安全功能，因为并非每个用户都想共享其位置。

来自W3C docs :

A conforming implementation of this specification must provide a mechanism that protects the user's privacy and this mechanism should ensure that no location information is made available through this API without the user's express permission.

但您可以尝试使用类似 geoip 的服务在错误回调中。