Html Google Maps API 3 搜索框
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Google Maps API 3 search box
提问by shinjuo
I cannot figure out how to implement the search box in my google maps. I have it where the user can pick some stuff from a form and it loads the markers on the map. Now I want to add where they can type in the city and state using the google search box, like on maps.google.com. Can this be done with API v. 3?
我不知道如何在我的谷歌地图中实现搜索框。我有它，用户可以从表单中选择一些东西，并在地图上加载标记。现在我想添加他们可以使用谷歌搜索框输入城市和州的位置，比如在 maps.google.com 上。这可以通过 API v. 3 完成吗？
回答by Jiri Kriz
There is no complete "widget" in Google maps for this task. But it is easy to accomplish it. In HTML you can have a text field and a button "Search". (Instead you can handle the Enter key in the text field).
谷歌地图中没有针对此任务的完整“小部件”。但它很容易实现。在 HTML 中，您可以有一个文本字段和一个“搜索”按钮。（相反，您可以处理文本字段中的 Enter 键）。
<input type="text" id="search_address" value=""/>
<button onclick="search();">Search</button>
In Javascript you instantiate and use a Geocoder:
在 Javascript 中，您可以实例化并使用 Geocoder：
var addressField = document.getElementById('search_address');
var geocoder = new google.maps.Geocoder();
function search() {
geocoder.geocode(
{'address': addressField.value},
function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var loc = results[0].geometry.location;
// use loc.lat(), loc.lng()
}
else {
alert("Not found: " + status);
}
}
);
};
