我想使用谷歌地图API:
-在地图上搜索地址-在地图上放置标记并拖动
结合一些代码，我想出了这个(显然它不工作)。有人能帮我调试一下吗?: D
谢谢!
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
html, body, #map-canvas {
height: 100%;
margin: 50px;
padding: 0px
}
.controls {
margin-top: 16px;
border: 1px solid transparent;
border-radius: 2px 0 0 2px;
box-sizing: border-box;
-moz-box-sizing: border-box;
height: 32px;
outline: none;
box-shadow: 0 2px 6px rgba(0, 0, 0, 0.3);
}
#pac-input {
background-color: #fff;
padding: 0 11px 0 13px;
width: 400px;
font-family: Roboto;
font-size: 15px;
font-weight: 300;
text-overflow: ellipsis;
}
#pac-input:focus {
border-color: #4d90fe;
margin-left: -1px;
padding-left: 14px; /* Regular padding-left + 1. */
width: 401px;
}
.pac-container {
font-family: Roboto;
}
#type-selector {
color: #fff;
background-color: #4d90fe;
padding: 5px 11px 0px 11px;
}
#type-selector label {
font-family: Roboto;
font-size: 13px;
font-weight: 300;
}
}
</style>
<title>Places search box</title>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=places"></script>
<script>
// This example adds a search box to a map, using the Google Place Autocomplete
// feature. People can enter geographical searches. The search box will return a
// pick list containing a mix of places and predicted search terms.
function initialize() {
var markers = [];
var map = new google.maps.Map(document.getElementById('map-canvas'), {
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var defaultBounds = new google.maps.LatLngBounds(
new google.maps.LatLng(-33.8902, 151.1759),
new google.maps.LatLng(-33.8474, 151.2631));
map.fitBounds(defaultBounds);
// Create the search box and link it to the UI element.
var input = /** @type {HTMLInputElement} */(
document.getElementById('pac-input'));
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);
var searchBox = new google.maps.places.SearchBox(
/** @type {HTMLInputElement} */(input));
// [START region_getplaces]
// Listen for the event fired when the user selects an item from the
// pick list. Retrieve the matching places for that item.
google.maps.event.addListener(searchBox, 'places_changed', function() {
var places = searchBox.getPlaces();
if (places.length == 0) {
return;
}
for (var i = 0, marker; marker = markers[i]; i++) {
marker.setMap(null);
}
// For each place, get the icon, place name, and location.
markers = [];
var bounds = new google.maps.LatLngBounds();
for (var i = 0, place; place = places[i]; i++) {
var image = {
url: place.icon,
size: new google.maps.Size(71, 71),
origin: new google.maps.Point(0, 0),
anchor: new google.maps.Point(17, 34),
scaledSize: new google.maps.Size(25, 25)
};
// Create a marker for each place.
var marker = new google.maps.Marker({
map: map,
icon: image,
title: place.name,
position: place.geometry.location
});
markers.push(marker);
bounds.extend(place.geometry.location);
}
map.fitBounds(bounds);
});
// [END region_getplaces]
// Bias the SearchBox results towards places that are within the bounds of the
// current map's viewport.
google.maps.event.addListener(map, 'bounds_changed', function() {
var bounds = map.getBounds();
searchBox.setBounds(bounds);
});
}
function addMyMarker()
{ //function that will add markers on button click
var marker = new google.maps.Marker({
position:mapCenter,
map: map,
draggable:true,
animation: google.maps.Animation.DROP,
title:"This a new marker!",
icon: "http://maps.google.com/mapfiles/ms/micons/blue.png"
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
<style>
#target {
width: 345px;
}
</style>
<script type="text/javascript">
function addMyMarker()
{ //function that will add markers on button click
var marker = new google.maps.Marker({
position:mapCenter,
map: map,
draggable:true,
animation: google.maps.Animation.DROP,
title:"This a new marker!",
icon: "http://maps.google.com/mapfiles/ms/micons/blue.png"
});
}
</script>
</head>
<body>
<button id="drop" onClick="addMyMarker()">Drop Markers</button>
<input id="pac-input" class="controls" type="text" placeholder="Search Box">
<div id="map-canvas"></div>
</body>
</html>
首先，将map变量设置为全局变量，以便您可以从任何函数访问它。然后确保您定义了mapCenter(全局)，如下所示:new google.maps.LatLng(-33.8902, 151.1759)
然后确保您只有一个addMyMarker功能(只需删除第二个)。