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[Html5]HTML5定位在百度地图API上的应用

时间:2014-07-15 15:38酷播
测试浏览器:ie11定位成功率100%,Safari定位成功率97%。其它浏览器暂时不行,HTML5获取不了地理位置信息

测试浏览器:ie11定位成功率100%,Safari定位成功率97%。其它浏览器暂时不行,HTML5获取不了地理位置信息。

  1. <!DOCTYPE html> 
  2. <html lang="en"> 
  3. <head> 
  4.     <meta charset="UTF-8"> 
  5.     <title>HTML5定位</title> 
  6.     <script type="text/javascript" src="http://lib.sinaapp.com/js/jquery/1.7.2/jquery.min.js"></script> 
  7.   <script type="text/javascript" src="http://api.map.baidu.com/api?v=2.0&ak=wqBXfIN3HkpM1AHKWujjCdsi"></script> 
  8.   <script type="text/javascript" src="http://developer.baidu.com/map/jsdemo/demo/convertor.js"></script> 
  9.     <style type="text/css"> 
  10.     *{ margin: 0px; padding: 0px;} 
  11.   body{text-align: center;  height: 100%;overflow:hidden;} 
  12.   #allmap{ width: 100%;height: 100%; position: absolute;} 
  13.     </style> 
  14. </head> 
  15. <body> 
  16.     <div id="allmap"></div> 
  17. <script type="text/javascript"> 
  18.  $(function(){ 
  19.      if(supportsGeoLocation()){ 
  20.          alert("你的浏览器支持 GeoLocation."); 
  21.      }else{ 
  22.          alert("不支持 GeoLocation.") 
  23.      } 
  24.   // 检测浏览器是否支持HTML5 
  25.                function supportsGeoLocation(){ 
  26.                   return !!navigator.geolocation; 
  27.               }   
  28.   // 单次位置请求执行的函数              
  29.                function getLocation(){ 
  30.                   navigator.geolocation.getCurrentPosition(mapIt,locationError); 
  31.                } 
  32.   //定位成功时,执行的函数 
  33.               function mapIt(position){  
  34.                 var lon = position.coords.longitude; 
  35.                    var lat = position.coords.latitude; 
  36.                    // alert("您位置的经度是:"+lon+" 纬度是:"+lat); 
  37.                 var map = new BMap.Map("allmap"); 
  38.                 var point = new BMap.Point(""+lon+"",""+lat+""); 
  39.                 map.centerAndZoom(point,19); 
  40.                 var gc = new BMap.Geocoder(); 
  41.                       translateCallback = function (point){ 
  42.                           var marker = new BMap.Marker(point); 
  43.                           map.addOverlay(marker); 
  44.                           map.setCenter(point); 
  45.                           gc.getLocation(point, function(rs){ 
  46.                                 var addComp = rs.addressComponents; 
  47.                                 if(addComp.province!==addComp.city){ 
  48.                                   var sContent = 
  49.                                   "<div><h4 style='margin:0 0 5px 0;padding:0.2em 0'>你当前的位置是:</h4>" +  
  50.                                   "<p style='margin:0;line-height:1.5;font-size:13px;text-indent:2em'>"+addComp.province + ", " + addComp.city + ", " + addComp.district + ", " + addComp.street + ", " + addComp.streetNumber+"</p>" +  
  51.                                   "</div>";} 
  52.                                 else{ 
  53.                                   var sContent = 
  54.                                   "<div><h4 style='margin:0 0 5px 0;padding:0.2em 0'>你当前的位置是:</h4>" +  
  55.                                   "<p style='margin:0;line-height:1.5;font-size:13px;text-indent:2em'>"+ addComp.city + ", " + addComp.district + ", " + addComp.street + ", " + addComp.streetNumber+"</p>" +  
  56.                                   "</div>"; 
  57.                                 } 
  58.                                 var infoWindow = new BMap.InfoWindow(sContent); 
  59.                                 map.openInfoWindow(infoWindow,point); 
  60.                           });  
  61.                       }                     
  62.                   BMap.Convertor.translate(point,0,translateCallback);  
  63.             } 
  64.   // 定位失败时,执行的函数 
  65.                function locationError(error) 
  66.               { 
  67.               switch(error.code) 
  68.                 { 
  69.                 case error.PERMISSION_DENIED: 
  70.                   alert("User denied the request for Geolocation."); 
  71.                   break; 
  72.                 case error.POSITION_UNAVAILABLE: 
  73.                    alert("Location information is unavailable."); 
  74.                   break; 
  75.                 case error.TIMEOUT: 
  76.                    alert("The request to get user location timed out."); 
  77.                   break; 
  78.                 case error.UNKNOWN_ERROR: 
  79.                    alert("An unknown error occurred."); 
  80.                   break; 
  81.                 } 
  82.               } 
  83.   // 页面加载时执行getLocation函数 
  84.   window.onload = getLocation;   
  85.         }) 
  86. </script> 
  87. </body> 
  88. </html> 

 

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