问题是当我拖动标记时，它会将结果更新到div中，但我不知道为什么它没有更新并在程序结束时显示在我的input中。
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder = new google.maps.Geocoder();
function geocodePosition(pos) {
geocoder.geocode({
latLng: pos
}, function(responses) {
if (responses && responses.length > 0) {
updateMarkerAddress(responses[0].formatted_address);
} else {
updateMarkerAddress('Cannot determine address at this location.');
}
});
}
function updateMarkerStatus(str) {
document.getElementById('markerStatus').innerHTML = str;
}
function updateMarkerPosition(latLng) {
document.getElementById('info').innerHTML = [
latLng.lat(),
latLng.lng()
].join(', ');
}
function updateMarkerAddress(str) {
document.getElementById('address').innerHTML = str;
}
function initialize() {
var latLng = new google.maps.LatLng(21.0000, 78.0000);
var map = new google.maps.Map(document.getElementById('mapCanvas'), {
zoom: 5 ,
center: latLng,
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var marker = new google.maps.Marker({
position: latLng,
title: 'Point A',
map: map,
draggable: true
});
更新当前位置信息。
updateMarkerPosition(latLng);
geocodePosition(latLng);
添加拖动事件侦听器。
google.maps.event.addListener(marker, 'dragstart', function() {
updateMarkerAddress('Dragging...');
});
google.maps.event.addListener(marker, 'drag', function() {
updateMarkerStatus('Dragging...');
updateMarkerPosition(marker.getPosition());
});
google.maps.event.addListener(marker, 'dragend', function() {
updateMarkerStatus('Drag ended');
geocodePosition(marker.getPosition());
});
}
加载处理程序以触发应用。
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<style>
#mapCanvas {
width: 800px;
height: 600px;
float: left;
}
#infoPanel {
float: left;
margin-left: 10px;
}
#infoPanel div {
margin-bottom: 5px;
}
</style>
<form method="POST" action="gsave.php">
<div id="mapCanvas"></div>
<div id="infoPanel">
<b>Marker status:</b>
<div id="markerStatus"><i>Click and drag the marker.</i></div>
<b>Current position:</b>
<div name="lat" id="info"></div>
<b>Closest matching address:</b>
<div name="address" id="address"></div>
</div>
<div id="map_canvas" style="background-color: #ffffff"></div>
<input type="text" id="info" name="lat" style="width:150px"> //i want to show in this input
<input type="text" id="address" name="address" style="width:150px">//and here also
<button type="submit" class="btn">Submit</button>
</form>
</body>
</html>
具有相同id值的多个元素是无效的 HTML。更改脚本：
function updateMarkerAddress(str) {
document.getElementById('address').innerHTML = str;
document.getElementById('address_info').innerHTML = str;
}
function updateMarkerPosition(latLng) {
var latlng_out = [ latLng.lat(), latLng.lng() ].join(', ');
document.getElementById('info').innerHTML = latlng_out;
document.getElementById('latlng_info').innerHTML = latlng_out;
}
和您的元素：
<input type="text" id="latlng_info" name="lat" style="width:150px">
<input type="text" id="address_info" name="address" style="width:150px">
共享相同id的所有其他元素也是如此。