问题描述
我一直在研究这个问题的答案，但最终只找到了通过创建不包含我的KML数据的全新地图来创建可搜索地图的方法。我有一个带有标记的地图，只是想向我拥有的地图添加自动完成搜索栏。
我尝试过的所有操作都会破坏地图（完全删除地图），并为我提供无法正常使用的搜索栏。我已将地方添加到帐单中，并且如上所述，我通过外部KML文件在地图上放置了标记。如何为已有的功能添加搜索功能？
这是我的地图代码：
<!DOCTYPE html>
<html>
<head>
<title>HCV Providers</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script
src="https://maps.googleapis.com/maps/api/js?key=&callback=initMap&libraries=&v=weekly"
defer
></script>
<style type="text/css">
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<script>
"use strict";
function initMap() {
const map = new google.maps.Map(document.getElementById("map"),{
zoom: 11,center: {
lat: 30.9843,lng: 91.9623
}
});
const ctaLayer = new google.maps.KmlLayer({
url: "https://louisianahealthhub.org/HCVProviders.kml",map: map
});
}
</script>
</head>
<body>
<div id="map"></div>
</body>
</html>
整页，但有错误：
<!DOCTYPE html>
<html>
<head>
<title>HCV Providers</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap&libraries=&v=weekly" defer></script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initAutocomplete&libraries=places&v=weekly" defer></script>
<style type="text/css">
/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,body {
height: 100%;
margin: 0;
padding: 0;
}
</style>
<script>
"use strict";
function initMap() {
const map = new google.maps.Map(document.getElementById("map"),{
zoom: 11,center: {
lat: 30.9843,lng: 91.9623
}
});
const ctaLayer = new google.maps.KmlLayer({
url: "https://louisianahealthhub.org/HCVProviders.kml",map: map
});
}
</script>
<script>
"use strict";
// 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.
// This example requires the Places library. Include the libraries=places
// parameter when you first load the API. For example:
// <script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places">
function initAutocomplete() {}); // Create the search Box and link it to the UI element.
const input = document.getElementById("pac-input");
const searchBox = new google.maps.places.SearchBox(input);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input); // Bias the SearchBox results towards current map's viewport.
map.addListener("bounds_changed",() => {
searchBox.setBounds(map.getBounds());
});
let markers = []; // Listen for the event fired when the user selects a prediction and retrieve
// more details for that place.
searchBox.addListener("places_changed",() => {
const places = searchBox.getPlaces();
if (places.length == 0) {
return;
} // Clear out the old markers.
markers.forEach(marker => {
marker.setMap(null);
});
markers = []; // For each place,get the icon,name and location.
const bounds = new google.maps.LatLngBounds();
places.forEach(place => {
if (!place.geometry) {
console.log("Returned place contains no geometry");
return;
}
const icon = {
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.
markers.push(
new google.maps.Marker({
map,icon,title: place.name,position: place.geometry.location
})
);
if (place.geometry.viewport) {
// Only geocodes have viewport.
bounds.union(place.geometry.viewport);
} else {
bounds.extend(place.geometry.location);
}
});
map.fitBounds(bounds);
});
}
</script>
</head>
<body>
<input id="pac-input" class="controls" type="text" placeholder="Search Box" />
<div id="map"></div>
</body>
</html>解决方法
在您发布的更新代码中，您具有两个“ init”功能。
该代码出现3个JavaScript错误：
-
Uncaught SyntaxError: Unexpected token ')' -
You have included the Google Maps JavaScript API multiple times on this page. This may cause unexpected errors. -
Uncaught (in promise) re {message: "initAutocomplete is not a function",
它也是Using initMap and initAutocomplete on same html page google maps
的副本最简单的解决方法是将Autocomplete构造函数添加到initMap函数现有代码中。
相关行（来自Google autocomplete example）：
var input = document.getElementById('pac-input');
var autocomplete = new google.maps.places.Autocomplete(input);
// Bind the map's bounds (viewport) property to the autocomplete object,// so that the autocomplete requests use the current map bounds for the
// bounds option in the request.
autocomplete.bindTo('bounds',map);
// Set the data fields to return when the user selects a place.
autocomplete.setFields(
['address_components','geometry','icon','name']);
var infowindow = new google.maps.InfoWindow();
var infowindowContent = document.getElementById('infowindow-content');
infowindow.setContent(infowindowContent);
var marker = new google.maps.Marker({
map: map,anchorPoint: new google.maps.Point(0,-29)
});
autocomplete.addListener('place_changed',function() {
infowindow.close();
marker.setVisible(false);
var place = autocomplete.getPlace();
if (!place.geometry) {
// User entered the name of a Place that was not suggested and
// pressed the Enter key,or the Place Details request failed.
window.alert("No details available for input: '" + place.name + "'");
return;
}
// If the place has a geometry,then present it on a map.
if (place.geometry.viewport) {
map.fitBounds(place.geometry.viewport);
} else {
map.setCenter(place.geometry.location);
map.setZoom(17); // Why 17? Because it looks good.
}
marker.setPosition(place.geometry.location);
marker.setVisible(true);
var address = '';
if (place.address_components) {
address = [
(place.address_components[0] && place.address_components[0].short_name || ''),(place.address_components[1] && place.address_components[1].short_name || ''),(place.address_components[2] && place.address_components[2].short_name || '')
].join(' ');
}
infowindowContent.children['place-icon'].src = place.icon;
infowindowContent.children['place-name'].textContent = place.name;
infowindowContent.children['place-address'].textContent = address;
infowindow.open(map,marker);
});
"use strict";
function initMap() {
const map = new google.maps.Map(document.getElementById("map"),{
zoom: 11,center: {
lat: 30.9843,lng: 91.9623
}
});
const ctaLayer = new google.maps.KmlLayer({
url: "https://louisianahealthhub.org/HCVProviders.kml",map: map
});
var input = document.getElementById('pac-input');
var autocomplete = new google.maps.places.Autocomplete(input);
// Bind the map's bounds (viewport) property to the autocomplete object,marker);
});
}/* Always set the map height explicitly to define the size of the div
* element that contains the map. */
#map {
height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html,body {
height: 100%;
margin: 0;
padding: 0;
}
#description {
font-family: Roboto;
font-size: 15px;
font-weight: 300;
}
#infowindow-content .title {
font-weight: bold;
}
#infowindow-content {
display: none;
}
#map #infowindow-content {
display: inline;
}
.pac-card {
margin: 10px 10px 0 0;
border-radius: 2px 0 0 2px;
box-sizing: border-box;
-moz-box-sizing: border-box;
outline: none;
box-shadow: 0 2px 6px rgba(0,0.3);
background-color: #fff;
font-family: Roboto;
}
#pac-container {
padding-bottom: 12px;
margin-right: 12px;
}
.pac-controls {
display: inline-block;
padding: 5px 11px;
}
#pac-input {
background-color: #fff;
font-family: Roboto;
font-size: 15px;
font-weight: 300;
margin-left: 12px;
padding: 0 11px 0 13px;
text-overflow: ellipsis;
width: 400px;
}
#pac-input:focus {
border-color: #4d90fe;
}
#title {
color: #fff;
background-color: #4d90fe;
font-size: 25px;
font-weight: 500;
padding: 6px 12px;
}<title>HCV Providers</title>
<script src="https://polyfill.io/v3/polyfill.min.js?features=default"></script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap&libraries=places" defer></script>
<div class="pac-card" id="pac-card">
<div id="pac-container">
<input id="pac-input" type="text" placeholder="Enter a location">
</div>
</div>
<div id="map"></div>
<div id="infowindow-content">
<img src="" width="16" height="16" id="place-icon">
<span id="place-name" class="title"></span><br>
<span id="place-address"></span>
</div>