我正在尝试在this google dev.guide之后对place_id进行反向地址解析(Google)。但是,我想在加载页面时执行地理编码功能,而不是使用“ click”事件来初始化地理编码功能。因此,我用以下代码替换了click-eventListener:
document.addEventListener("DOMContentLoaded", function() {
geocodePlaceId(geocoder, map, infowindow);
});
在地址解析功能中,我已经硬编码了place_id(通过示例):
function geocodePlaceId(geocoder, map, infowindow) {
var placeId = ChIJw2IskpfGxUcRRNxZ4A_lGWk;
geocoder.geocode({'placeId': placeId}, function(results, status) {
if (status === google.maps.GeocoderStatus.OK) {
etcetc
}
不幸的是,这行不通,即没有初始化反向地理编码。任何对此非常温和的Java程序员的建议都将受到欢迎!
最佳答案
我收到您的代码Uncaught ReferenceError: ChIJw2IskpfGxUcRRNxZ4A_lGWk is not defined
的javascript错误。 placeId是一个字符串。
这个:
var placeId = ChIJw2IskpfGxUcRRNxZ4A_lGWk;
应该:
var placeId = "ChIJw2IskpfGxUcRRNxZ4A_lGWk";
代码段:
function geocodePlaceId(geocoder, map, infowindow) {
var placeId = "ChIJw2IskpfGxUcRRNxZ4A_lGWk";
geocoder.geocode({
'placeId': placeId
}, function(results, status) {
if (status === google.maps.GeocoderStatus.OK) {
map.setZoom(11);
map.setCenter(results[0].geometry.location);
var marker = new google.maps.Marker({
position: results[0].geometry.location,
map: map
});
infowindow.setContent(results[0].formatted_address);
infowindow.open(map, marker);
} else {
window.alert('Geocoder failed due to: ' + status);
}
});
}
function initialize() {
var map = new google.maps.Map(
document.getElementById("map_canvas"), {
center: new google.maps.LatLng(37.4419, -122.1419),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var geocoder = new google.maps.Geocoder();
var infowindow = new google.maps.InfoWindow();
geocodePlaceId(geocoder, map, infowindow);
}
google.maps.event.addDomListener(window, "load", initialize);
html,
body,
#map_canvas {
height: 100%;
width: 100%;
margin: 0px;
padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js"></script>
<div id="map_canvas"></div>
关于javascript - 页面加载时如何初始化反向地址解析?,我们在Stack Overflow上找到一个类似的问题:https://stackoverflow.com/questions/36719302/