Я создаю страницу для поиска различных мест на карте Google.Я начал с кода, предоставленного Google (https://developers -dot-devsite-v2-prod.appspot.com / maps / documents / javascript / examples / place-autocomplete-hotelsearch ), и я протестировалкод с JSFiddle:
<!DOCTYPE html>
<html>
<head>
<title>Place Autocomplete Hotel Search</title>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<style>
/* 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;
}
body {
padding: 0 !important;
}
table {
font-size: 12px;
}
.hotel-search {
-webkit-box-align: center;
-ms-flex-align: center;
align-items: center;
background: #fff;
display: -webkit-box;
display: -ms-flexbox;
display: flex;
left: 0;
position: absolute;
top: 0;
width: 440px;
z-index: 1;
}
#map {
margin-top: 40px;
width: 440px;
}
#listing {
position: absolute;
width: 200px;
height: 470px;
overflow: auto;
left: 442px;
top: 0px;
cursor: pointer;
overflow-x: hidden;
}
#findhotels {
font-size: 14px;
}
#locationField {
-webkit-box-flex: 1 1 190px;
-ms-flex: 1 1 190px;
flex: 1 1 190px;
margin: 0 8px;
}
#controls {
-webkit-box-flex: 1 1 140px;
-ms-flex: 1 1 140px;
flex: 1 1 140px;
}
#autocomplete {
width: 100%;
}
#country {
width: 100%;
}
.placeIcon {
width: 20px;
height: 34px;
margin: 4px;
}
.hotelIcon {
width: 24px;
height: 24px;
}
#resultsTable {
border-collapse: collapse;
width: 240px;
}
#rating {
font-size: 13px;
font-family: Arial Unicode MS;
}
.iw_table_row {
height: 18px;
}
.iw_attribute_name {
font-weight: bold;
text-align: right;
}
.iw_table_icon {
text-align: right;
}
</style>
</head>
<body>
<div class="hotel-search">
<div id="findhotels">
Find hotels in:
</div>
<div id="locationField">
<input id="autocomplete" placeholder="Enter a city" type="text" />
</div>
<div id="controls">
<select id="country">
<option value="all">All</option>
<option value="au">Australia</option>
<option value="br">Brazil</option>
<option value="ca">Canada</option>
<option value="fr">France</option>
<option value="de">Germany</option>
<option value="mx">Mexico</option>
<option value="nz">New Zealand</option>
<option value="it">Italy</option>
<option value="za">South Africa</option>
<option value="es">Spain</option>
<option value="pt">Portugal</option>
<option value="us" selected>U.S.A.</option>
<option value="uk">United Kingdom</option>
</select>
</div>
</div>
<div id="map"></div>
<div id="listing">
<table id="resultsTable">
<tbody id="results"></tbody>
</table>
</div>
<div style="display: none">
<div id="info-content">
<table>
<tr id="iw-url-row" class="iw_table_row">
<td id="iw-icon" class="iw_table_icon"></td>
<td id="iw-url"></td>
</tr>
<tr id="iw-address-row" class="iw_table_row">
<td class="iw_attribute_name">Address:</td>
<td id="iw-address"></td>
</tr>
<tr id="iw-phone-row" class="iw_table_row">
<td class="iw_attribute_name">Telephone:</td>
<td id="iw-phone"></td>
</tr>
<tr id="iw-rating-row" class="iw_table_row">
<td class="iw_attribute_name">Rating:</td>
<td id="iw-rating"></td>
</tr>
<tr id="iw-website-row" class="iw_table_row">
<td class="iw_attribute_name">Website:</td>
<td id="iw-website"></td>
</tr>
</table>
</div>
</div>
<script>
// This example uses the autocomplete feature of the Google Places API.
// It allows the user to find all hotels in a given place, within a given
// country. It then displays markers for all the hotels returned,
// with on-click details for each hotel.
// 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">
var map, places, infoWindow;
var markers = [];
var autocomplete;
var countryRestrict = {'country': 'us'};
var MARKER_PATH = 'https://developers.google.com/maps/documentation/javascript/images/marker_green';
var hostnameRegexp = new RegExp('^https?://.+?/');
var countries = {
'au': {
center: {lat: -25.3, lng: 133.8},
zoom: 4
},
'br': {
center: {lat: -14.2, lng: -51.9},
zoom: 3
},
'ca': {
center: {lat: 62, lng: -110.0},
zoom: 3
},
'fr': {
center: {lat: 46.2, lng: 2.2},
zoom: 5
},
'de': {
center: {lat: 51.2, lng: 10.4},
zoom: 5
},
'mx': {
center: {lat: 23.6, lng: -102.5},
zoom: 4
},
'nz': {
center: {lat: -40.9, lng: 174.9},
zoom: 5
},
'it': {
center: {lat: 41.9, lng: 12.6},
zoom: 5
},
'za': {
center: {lat: -30.6, lng: 22.9},
zoom: 5
},
'es': {
center: {lat: 40.5, lng: -3.7},
zoom: 5
},
'pt': {
center: {lat: 39.4, lng: -8.2},
zoom: 6
},
'us': {
center: {lat: 37.1, lng: -95.7},
zoom: 3
},
'uk': {
center: {lat: 54.8, lng: -4.6},
zoom: 5
}
};
function initMap() {
map = new google.maps.Map(document.getElementById('map'), {
zoom: countries['us'].zoom,
center: countries['us'].center,
mapTypeControl: false,
panControl: false,
zoomControl: false,
streetViewControl: false
});
infoWindow = new google.maps.InfoWindow({
content: document.getElementById('info-content')
});
// Create the autocomplete object and associate it with the UI input control.
// Restrict the search to the default country, and to place type "cities".
autocomplete = new google.maps.places.Autocomplete(
/** @type {!HTMLInputElement} */ (
document.getElementById('autocomplete')), {
types: ['(cities)'],
componentRestrictions: countryRestrict
});
places = new google.maps.places.PlacesService(map);
autocomplete.addListener('place_changed', onPlaceChanged);
// Add a DOM event listener to react when the user selects a country.
document.getElementById('country').addEventListener(
'change', setAutocompleteCountry);
}
// When the user selects a city, get the place details for the city and
// zoom the map in on the city.
function onPlaceChanged() {
var place = autocomplete.getPlace();
if (place.geometry) {
map.panTo(place.geometry.location);
map.setZoom(15);
search();
} else {
document.getElementById('autocomplete').placeholder = 'Enter a city';
}
}
// Search for hotels in the selected city, within the viewport of the map.
function search() {
var search = {
bounds: map.getBounds(),
types: ['lodging']
};
places.nearbySearch(search, function(results, status) {
if (status === google.maps.places.PlacesServiceStatus.OK) {
clearResults();
clearMarkers();
// Create a marker for each hotel found, and
// assign a letter of the alphabetic to each marker icon.
for (var i = 0; i < results.length; i++) {
var markerLetter = String.fromCharCode('A'.charCodeAt(0) + (i % 26));
var markerIcon = MARKER_PATH + markerLetter + '.png';
// Use marker animation to drop the icons incrementally on the map.
markers[i] = new google.maps.Marker({
position: results[i].geometry.location,
animation: google.maps.Animation.DROP,
icon: markerIcon
});
// If the user clicks a hotel marker, show the details of that hotel
// in an info window.
markers[i].placeResult = results[i];
google.maps.event.addListener(markers[i], 'click', showInfoWindow);
setTimeout(dropMarker(i), i * 100);
addResult(results[i], i);
}
}
});
}
function clearMarkers() {
for (var i = 0; i < markers.length; i++) {
if (markers[i]) {
markers[i].setMap(null);
}
}
markers = [];
}
// Set the country restriction based on user input.
// Also center and zoom the map on the given country.
function setAutocompleteCountry() {
var country = document.getElementById('country').value;
if (country == 'all') {
autocomplete.setComponentRestrictions({'country': []});
map.setCenter({lat: 15, lng: 0});
map.setZoom(2);
} else {
autocomplete.setComponentRestrictions({'country': country});
map.setCenter(countries[country].center);
map.setZoom(countries[country].zoom);
}
clearResults();
clearMarkers();
}
function dropMarker(i) {
return function() {
markers[i].setMap(map);
};
}
function addResult(result, i) {
var results = document.getElementById('results');
var markerLetter = String.fromCharCode('A'.charCodeAt(0) + (i % 26));
var markerIcon = MARKER_PATH + markerLetter + '.png';
var tr = document.createElement('tr');
tr.style.backgroundColor = (i % 2 === 0 ? '#F0F0F0' : '#FFFFFF');
tr.onclick = function() {
google.maps.event.trigger(markers[i], 'click');
};
var iconTd = document.createElement('td');
var nameTd = document.createElement('td');
var icon = document.createElement('img');
icon.src = markerIcon;
icon.setAttribute('class', 'placeIcon');
icon.setAttribute('className', 'placeIcon');
var name = document.createTextNode(result.name);
iconTd.appendChild(icon);
nameTd.appendChild(name);
tr.appendChild(iconTd);
tr.appendChild(nameTd);
results.appendChild(tr);
}
function clearResults() {
var results = document.getElementById('results');
while (results.childNodes[0]) {
results.removeChild(results.childNodes[0]);
}
}
// Get the place details for a hotel. Show the information in an info window,
// anchored on the marker for the hotel that the user selected.
function showInfoWindow() {
var marker = this;
places.getDetails({placeId: marker.placeResult.place_id},
function(place, status) {
if (status !== google.maps.places.PlacesServiceStatus.OK) {
return;
}
infoWindow.open(map, marker);
buildIWContent(place);
});
}
// Load the place information into the HTML elements used by the info window.
function buildIWContent(place) {
document.getElementById('iw-icon').innerHTML = '<img class="hotelIcon" ' +
'src="' + place.icon + '"/>';
document.getElementById('iw-url').innerHTML = '<b><a href="' + place.url +
'">' + place.name + '</a></b>';
document.getElementById('iw-address').textContent = place.vicinity;
if (place.formatted_phone_number) {
document.getElementById('iw-phone-row').style.display = '';
document.getElementById('iw-phone').textContent =
place.formatted_phone_number;
} else {
document.getElementById('iw-phone-row').style.display = 'none';
}
// Assign a five-star rating to the hotel, using a black star ('✭')
// to indicate the rating the hotel has earned, and a white star ('✩')
// for the rating points not achieved.
if (place.rating) {
var ratingHtml = '';
for (var i = 0; i < 5; i++) {
if (place.rating < (i + 0.5)) {
ratingHtml += '✩';
} else {
ratingHtml += '✭';
}
document.getElementById('iw-rating-row').style.display = '';
document.getElementById('iw-rating').innerHTML = ratingHtml;
}
} else {
document.getElementById('iw-rating-row').style.display = 'none';
}
// The regexp isolates the first part of the URL (domain plus subdomain)
// to give a short URL for displaying in the info window.
if (place.website) {
var fullUrl = place.website;
var website = hostnameRegexp.exec(place.website);
if (website === null) {
website = 'http://' + place.website + '/';
fullUrl = website;
}
document.getElementById('iw-website-row').style.display = '';
document.getElementById('iw-website').textContent = website;
} else {
document.getElementById('iw-website-row').style.display = 'none';
}
}
</script>
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initMap"
async defer></script>
</body>
</html>
Это, однако, позволяет мне выполнять поиск только по категории (в данном случае "жилье").
Я хотел бы искать места на более чемодна категория (в моем случае я ввел: жилье, ресторан и стадион, затем я изменил функцию «поиска» следующим образом:
function search() {
var types = ["lodging", "restaurant", "stadium"];
var FirstEsecution = true;
types.forEach(type => {
var search = {
bounds: map.getBounds(),
types: [type]
};
places.nearbySearch(search, function(results, status) {
if (status === google.maps.places.PlacesServiceStatus.OK) {
if (FirstEsecution) {
clearResults();
clearMarkers();
FirstEsecution = false;
}
// Create a marker for each hotel found, and
// assign a letter of the alphabetic to each marker icon.
for (var i = 0; i < results.length; i++) {
var markerLetter = String.fromCharCode(
"A".charCodeAt(0) + (i % 26)
);
var markerIcon = MARKER_PATH + markerLetter + ".png";
// Use marker animation to drop the icons incrementally on the map.
markers[i] = new google.maps.Marker({
position: results[i].geometry.location,
animation: google.maps.Animation.DROP,
icon: markerIcon
});
// If the user clicks a hotel marker, show the details of that hotel
// in an info window.
markers[i].placeResult = results[i];
google.maps.event.addListener(
markers[i],
"click",
showInfoWindow
);
setTimeout(dropMarker(i), i * 100);
addResult(results[i], i);
}
}
});
});
}
Теперь у меня проблема, она показывает все маркеры на карте правильно (Максимум 20 для каждой категории, и каждый маркер связан с буквой.) Пока все хорошо, за исключением того, что каждый раз, когда цикл начинается с нового «типа категории», начинайте заново, чтобы связать букву на маркере, начиная с A, а затемЯ обнаруживаю маркеры с той же буквой, а также, когда в списке результатов я нажимаю на открывшемся имени, всплывающий на неправильном маркере, потому что правильный маркер не распознается, так как естьболее одного маркера с одной и той же буквой.Есть ли у вас какие-либо предложения по решению проблемы?Спасибо.