谷歌地图在地图上预览选定的位置

Question

我想允许我的用户选择一个位置以及预览搜索的位置以选择位置。

问题我无法集成搜索框以预览搜索的位置。

我正在使用的代码

<input type="text" id="search">
<div id="map"></div>
var map = document.getElementById('map');
var lp = new locationPicker(map, {
setCurrentPosition: true,
lat: -13.9867852,
lng: 33.77027889
}, {
zoom: 15 // You can set any google map options here, zoom defaults to 15
});
// Listen to button onclick event
confirmBtn.onclick = function () {
var location = lp.getMarkerPosition();
var location = location.lat + ',' + location.lng;
console.log(location);
};
google.maps.event.addListener(lp.map, 'idle', function (event) {
var location = lp.getMarkerPosition();
var location = location.lat + ',' + location.lng;
console.log(location);
});

如何启用输入以搜索位置并将其显示在地图上

编辑，已设法对输入启用搜索，但无法将标记移动到所选位置

google.maps.event.addDomListener(window, 'load', initialize);
function initialize() {
var input = document.getElementById('search');
var autocomplete = new google.maps.places.Autocomplete(input);
autocomplete.setComponentRestrictions({'country':['mw']});
autocomplete.addListener('place_changed', function () {
var place = autocomplete.getPlace();
/*
console.log(place.geometry['location'].lat());
console.log(place.geometry['location'].lng());
console.log(place.name);
console.log(place.formatted_address);
console.log(place.vicinity);
console.log(place.url);
console.log(place.address_components);*/
if(!place.geometry) {
return;
}

console.log(place);
});
}

Answer 1

请查看此示例小提琴，其中包含搜索框和地图。当用户在自动完成输入中选择地点建议时，该示例将调用 getPlace() 方法，然后打开一个信息窗口以显示地点详细信息。

您可以创建一个信息窗口来显示一些地点详细信息：

<input id="search" type="text" placeholder="Enter a location">
<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>
<!-- Replace the value of the key parameter with your own API key. -->
<script src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&libraries=places&callback=initialize" async defer></script>
</body>

在 initialize() 函数中，声明您的infowindow和marker对象，然后在place_changed侦听器中设置标记位置和信息窗口内容，每当用户选择自动完成地址建议时都会调用该侦听器。

var map;
function initialize() {
map = new google.maps.Map(document.getElementById('map'), {
center: {lat: -13.9867852, lng: 33.77027889},
zoom: 15
});
var input = document.getElementById('search');
var autocomplete = new google.maps.places.Autocomplete(input);
// Set the data fields to return when the user selects a place.
autocomplete.setFields(
['address_components', 'geometry', 'icon', 'name']);
autocomplete.setComponentRestrictions({
'country': ['mw']
});    
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);
});
}  

您还可以从公共文档中查看此示例。

希望这有帮助！