Google Map Api和GOOGLE Search Api整合实现代码

 

       将GOOGLE MAP API 和 GOOGLE Search API 进行整合，我用面向对象的方式写了一个类，通过传一个经纬度进去，自动通过GOOGLE LOCAL SEARCH获取附近的相关信息。比如餐厅、景点等，反过来标到地图上，并可在任意容器内显示。
下面是源码：

/* 
*Author:karry 
*Version:1.0 
*Time:2008-12-01 
*KMapSearch 类 
*把GOOGLE MAP 和LocalSearch结合。只需要传入MAP\经纬度值，就可以把该经纬度附近的相关本地搜索内容取出来，在地图上标注出来，并可以在指定容器显示搜索结果 
*/ (function() { 
var markers= new Array(); 
var KMapSearch=window.KMapSearch= function(map_, opts_) { 
this.opts = { 
container:opts_.container || "divSearchResult", 
keyWord:opts_.keyWord || "餐厅", 
latlng: opts_.latlng || new GLatLng(31, 121), 
autoClear:opts_.autoClear || true, 
icon:opts_.icon || new GIcon(G_DEFAULT_ICON) 
}; 
this.map = map_; 
this.gLocalSearch = new google.search.LocalSearch(); 
this.gLocalSearch.setCenterPoint(this.opts.latlng); 
this.gLocalSearch.setResultSetSize(GSearch.LARGE_RESULTSET); 
this.gLocalSearch.setSearchCompleteCallback(this, function() { 
if (this.gLocalSearch.results) { 
var savedResults = document.getElementById(this.opts.container); 
if (this.opts.autoClear) { 
savedResults.innerHTML = ""; 
} 
for (var i = 0; i < this.gLocalSearch.results.length; i++) { 
savedResults.appendChild(this.getResult(this.gLocalSearch.results[i])); 
} 
} 
}); 
} 
KMapSearch.prototype.getResult = function(result) { 
var container = document.createElement("div"); 
container.className = "list"; 
var myRadom =(new Date()).getTime().toString()+Math.floor(Math.random()*10000); 
container.id=myRadom; 
container.innerHTML = result.title + "<br />地址：" + result.streetAddress; 
this.createMarker(new GLatLng(result.lat, result.lng), result.html,myRadom); 
return container; 
} 
KMapSearch.prototype.createMarker = function(latLng, content) 
{ 
var marker = new GMarker(latLng, {icon:this.opts.icon,title:this.opts.title}); 
GEvent.addListener(marker, "click", function() { 
marker.openInfoWindowHtml(content); 
}); 
markers.push(marker); 
map.addOverlay(marker); 
} 
KMapSearch.prototype.clearAll = function() { 
for (var i = 0; i < markers.length; i++) { 
this.map.removeOverlay(markers[i]); 
} 
markers.length = 0; 
} 
KMapSearch.prototype.execute = function(latLng) { 
if (latLng) { 
this.gLocalSearch.setCenterPoint(latLng); 
} 
this.gLocalSearch.execute(this.opts.keyWord); 
} 
})();

使用方法：

var myIcon = new GIcon(G_DEFAULT_ICON); 
myIcon.image = "canting.png"; 
myIcon.iconSize = new GSize(16, 20); 
myIcon.iconAnchor = new GPoint(8, 20); 
myIcon.shadow = ""; 
var mapSearch = new KMapSearch(map, {container:"cantingContainer",latlng:initPt,icon:myIcon,keyWord:"餐厅"}); 
mapSearch.clearAll(); 
mapSearch.execute();

点击这里查看演示示例：经纬度查询整合本地搜索