如何使用谷歌地图把当前位置显示出来呢?
--在html5中,为我们提供了navigator.geolocation.getCurrentPosition(f1, f2)函数,f1是定位成功调用的函数,f2是定位失败调用的函数,而且会把当前的地理位置信息作为实参传递给f1和f2函数。f1函数调用谷歌地图的API即可。
如何展示呢?
--需要一个提示信息和展示地图的一个区域。
页面上,大致是这样:
<map-geo-location height="400" width="600"></map-geo-location>
<script src="angular.js"></script>
<script src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script src=="mapGeoLocation.js"></script>
Directive部分如下:
(function(){ var mapGeoLocation = [‘$window‘, function($window){ var template = ‘<p><span id="status">正在查找地址...</span></p>‘ + ‘<br /><div id="map"></div>‘, mapContainer = null, status = null; function link(scope, elem, attrs){ //以Angular的方式获取Angular元素 status = angular.element(document.getElementById(‘status‘)); mapContainer = angular.element(document.getElementById(‘map‘)); mapContainer.attr(‘style‘, ‘height:‘ + scope.height + ‘px;width:‘ + scope.width + ‘px‘); $window.navigator.geolocation.getCurrentPosition(mapLocation, geoError); } //定位成功时调用 function mapLocation(pos){ status.html(‘found your location! Longitude: ‘ + pos.coords.longitude + ‘ Latitude: ‘ + pos.coords.latitude); var latlng = new google.maps.LatLng(pos.coords.latitude, pos.coords.longitude); var optons = { zoom:15, center: latlng, myTypeCOntrol: true, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map(mapContainer[0], options); var marker = new google.maps.Markser({ position: latlng, map: map, title: "Your location" }); } //定位失败时调用 function geoError(error){ status.html(‘failed lookup ‘ + error.message); } return { restrict: ‘EA‘, //默认 scope:{ height: ‘@‘, width:‘@‘ }, link: link, template: template } }]; angular.module(‘direcitveModule‘,[]) .direcitve(‘mapGeoLocation‘, mapGeoLocation); }());
时间: 2024-10-10 15:22:29