html - Google Maps Javascript GeoLocation - 不适用于 Chrome

转载作者：太空狗更新时间：2023-10-29 13:46:31

注意:下面引用的 html 的原始来源来自 http://www.w3schools.com/html/tryit.asp?filename=tryhtml5_geolocation_map和 Google Maps Javascript V3 geolocation - cannot access initialLocation variable unless alerted

我收集了三种不同版本的地理定位示例。在 Firefox 中一切正常。在 Chrome 中都不起作用。我已将 Chrome 权限设置为允许所有网站使用我的位置，但仍然没有成功。它必须是 Chrome 设置，但不是明显的设置:设置/显示高级设置/隐私/内容设置/位置/允许所有网站跟踪我的物理位置。

在 Firefox 中，提示共享位置后，我会看到我的当前位置。

在 Chrome 中，我得到用户拒绝了地理定位请求或错误:根据 html，地理定位服务失败。

鉴于这适用于 Firefox 而不是 Chrome 我认为它必须是 Chrome 设置，但我只是不知道我能做些什么比允许所有网站跟踪我的物理位置更宽松。

这是三个 HTML5 文件:

geoGoogle.html:

<!DOCTYPE html>
<html>
 <head>
   <title>Geolocation</title>
   <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
   <meta charset="utf-8">
   <link href="https://google-developers.appspot.com/maps/documentation/javascript/examples/default.css" rel="stylesheet">
   <!--
   Include the maps javascript with sensor=true because this code is using a
   sensor (a GPS locator) to determine the user's location.
   See: https://developers.google.com/apis/maps/documentation/javascript/basics#SpecifyingSensor
   -->
   <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=true"></script>

   <script>
var map;

function initialize() {
 var mapOptions = {
   zoom: 6,
   mapTypeId: google.maps.MapTypeId.ROADMAP
 };
 map = new google.maps.Map(document.getElementById('map-canvas'),
     mapOptions);

 // Try HTML5 geolocation
 if(navigator.geolocation) {
   navigator.geolocation.getCurrentPosition(function(position) {
          initialLocation = new google.maps.LatLng(position.coords.latitude,position.coords.longitude);
          map.setCenter(initialLocation);
          var infowindow = new google.maps.InfoWindow({
            map: map,
            position: initialLocation ,
            content: 'Location found using W3C standard'
          });
          var marker = new google.maps.Marker({
            position: initialLocation, 
            map: map
          });
        }, function() {
          handleNoGeolocation(true);
        });
 } else {
   // Browser doesn't support Geolocation
   handleNoGeolocation(false);
 }
}

function handleNoGeolocation(errorFlag) {
 if (errorFlag) {
   var content = 'Error: The Geolocation service failed.';
 } else {
   var content = 'Error: Your browser doesn\'t support geolocation.';
 }

 var options = {
   map: map,
   position: new google.maps.LatLng(60, 105),
   content: content
 };

 var infowindow = new google.maps.InfoWindow(options);
 map.setCenter(options.position);
}

google.maps.event.addDomListener(window, 'load', initialize);

   </script>
 </head>
 <body>
   <div id="map-canvas"></div>
 </body>
</html>

geoGoogle2.html:

<!DOCTYPE html>
<html>
 <head>
   <title>Geolocation</title>
   <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
   <meta charset="utf-8">
   <link href="https://google-developers.appspot.com/maps/documentation/javascript/examples/default.css" rel="stylesheet">
   <!--
   Include the maps javascript with sensor=true because this code is using a
   sensor (a GPS locator) to determine the user's location.
   See: https://developers.google.com/apis/maps/documentation/javascript/basics#SpecifyingSensor
   -->
   <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=true"></script>

   <script>
var map;

function initialize() {
 var mapOptions = {
   zoom: 6,
   mapTypeId: google.maps.MapTypeId.ROADMAP
 };
 map = new google.maps.Map(document.getElementById('map-canvas'),
     mapOptions);

 // Try HTML5 geolocation
 if(navigator.geolocation) {
   navigator.geolocation.getCurrentPosition(function(position) {
     var pos = new google.maps.LatLng(position.coords.latitude,
                                      position.coords.longitude);

     var infowindow = new google.maps.InfoWindow({
       map: map,
       position: pos,
       content: 'Location found using HTML5.'
     });

     map.setCenter(pos);
   }, function() {
     handleNoGeolocation(true);
   });
 } else {
   // Browser doesn't support Geolocation
   handleNoGeolocation(false);
 }
}

function handleNoGeolocation(errorFlag) {
 if (errorFlag) {
   var content = 'Error: The Geolocation service failed.';
 } else {
   var content = 'Error: Your browser doesn\'t support geolocation.';
 }

 var options = {
   map: map,
   position: new google.maps.LatLng(60, 105),
   content: content
 };

 var infowindow = new google.maps.InfoWindow(options);
 map.setCenter(options.position);
}

google.maps.event.addDomListener(window, 'load', initialize);

   </script>
 </head>
 <body>
   <div id="map-canvas"></div>
 </body>
</html>

geoGoogle3.html:

<!DOCTYPE html>
<html>
<body>
<p id="demo">Click the button to get your position:</p>
<button onclick="getLocation()">Try It</button>
<div id="mapholder"></div>
<script>
var x=document.getElementById("demo");
function getLocation()
  {
  if (navigator.geolocation)
    {
    navigator.geolocation.getCurrentPosition(showPosition,showError);
    }
  else{x.innerHTML="Geolocation is not supported by this browser.";}
  }

function showPosition(position)
  {
  var latlon=position.coords.latitude+","+position.coords.longitude;

  var img_url="http://maps.googleapis.com/maps/api/staticmap?center="
  +latlon+"&zoom=14&size=400x300&sensor=false";
  document.getElementById("mapholder").innerHTML="<img src='"+img_url+"'>";
  }

function showError(error)
  {
  switch(error.code) 
    {
    case error.PERMISSION_DENIED:
      x.innerHTML="User denied the request for Geolocation."
      break;
    case error.POSITION_UNAVAILABLE:
      x.innerHTML="Location information is unavailable."
      break;
    case error.TIMEOUT:
      x.innerHTML="The request to get user location timed out."
      break;
    case error.UNKNOWN_ERROR:
      x.innerHTML="An unknown error occurred."
      break;
    }
  }
</script>
</body>
</html>