复制代码代码如下: script type="text/javascript" var map; var browserSupport = false; var attempts = 0; $(document).ready(function () { //初始化地图 InitMap(); //定位 getLocation(); //定位跟踪 watchLocation(); }); function InitMap() { /* Set all of the options for the map */ var options = { }; /* Create a new Map for the application */ map = new google.maps.Map($('#map')[0], options); } /* * If the W3C Geolocation object is available then get the current * location, otherwise report the problem */ function getLocation() { } function watchLocation() { } /* Plot the location on the map and zoom to it */ function plotLocation(position) { } /* Report any errors using this function */ function reportProblem(e) { } /script
复制代码代码如下: function InitMap() { /* Set all of the options for the map */ var options = { zoom: 4, center: new google.maps.LatLng(38.6201, -90.2003), mapTypeId: google.maps.MapTypeId.ROADMAP, mapTypeControl: true, mapTypeControlOptions: { style: google.maps.MapTypeControlStyle.HORIZONTAL_BAR, position: google.maps.ControlPosition.BOTTOM_CENTER }, panControl: true, panControlOptions: { position: google.maps.ControlPosition.TOP_RIGHT }, zoomControl: true, zoomControlOptions: { style: google.maps.ZoomControlStyle.LARGE, position: google.maps.ControlPosition.LEFT_CENTER }, scaleControl: true, scaleControlOptions: { position: google.maps.ControlPosition.BOTTOM_LEFT }, streetViewControl: true, streetViewControlOptions: { position: google.maps.ControlPosition.LEFT_TOP } }; /* Create a new Map for the application */ map = new google.maps.Map($('#map')[0], options); }
getLocation和watchLocation方法获取定位信息。
复制代码代码如下: function getLocation() { /* Check if the browser supports the W3C Geolocation API */ if (navigator.geolocation) { browserSupport = true; navigator.geolocation.getCurrentPosition(plotLocation, reportProblem, { timeout: 45000 }); } else { reportProblem(); } } function watchLocation() { /* Check if the browser supports the W3C Geolocation API */ if (navigator.geolocation) { browserSupport = true; navigator.geolocation.watchPosition(plotLocation, reportProblem, { timeout: 45000 }); } else { reportProblem(); } }
成功获取位置信息后,调用plotLocation方法把位置显示在google maps上。
复制代码代码如下: function plotLocation(position) { attempts = 0; var point = new google.maps.LatLng(position.coords.latitude, position.coords.longitude); var marker = new google.maps.Marker({ position: point }); marker.setMap(map); map.setCenter(point); map.setZoom(15); }