Google Maps Application Developing —— Location

 

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<script type="text/javascript">     (function () {         var map;         window.onload = function () {             // Creating a map             var mapOptions = {                 zoom: 15,                 center: new google.maps.LatLng(31.35, 3.51),                 mapTypeId: google.maps.MapTypeId.ROADMAP             };             map = new google.maps.Map(document.getElementById('map'), mapOptions);             // Checking if geo positioning is available             if (geo_position_js.init()) {                 // Creating a settings object                 var settings = {                     enableHighAccuracy: true                 };                 // Trying to determine the location of the user                 geo_position_js.getCurrentPosition(setPosition, handleError, settings);             } else {                 alert('目前设备不支持地理定位!');             }         };         function handleError(error) {             alert('Error = ' + error.message);         }         function setPosition(position) {             // Creating a LatLng from the position info             var latLng = new google.maps.LatLng(position.coords.latitude, position.coords.longitude);             // Adding a marker to the map             var marker = new google.maps.Marker({                 position: latLng,                 map: map             });             // Creating an InfoWindow             var infoWindow = new google.maps.InfoWindow({                 content: '你在这里!'             });             // Adding the InfoWindow to the map               infoWindow.open(map, marker);             // Zooming in on the map             map.setZoom(15);         }     })(); </script>