Google地图自动填充功能 - 获取州/省的short_name
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如何从address_components对象获取short_name（例如，CA for California）？
这样可以抓住“long_name”：
var autocomplete;
var componentForm = {
locality: 'long_name',
administrative_area_level_1: 'long_name',
country: 'long_name'
};
var place = autocomplete.getPlace();
var addCity, addProvince, addCountry;
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
if(addressType == 'locality') addCity = val;
if(addressType == 'administrative_area_level_1') addProvince = val;
if(addressType == 'country') addCountry = val;
}
}
答案
更改：
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'short_name',
country: 'long_name',
postal_code: 'short_name'
};
至：
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'long_name',
country: 'long_name',
postal_code: 'short_name'
};
代码段：
// This example displays an address form, using the autocomplete feature
// of the Google Places API to help users fill in the information.
var placeSearch, autocomplete;
var componentForm = {
street_number: 'short_name',
route: 'long_name',
locality: 'long_name',
administrative_area_level_1: 'long_name',
country: 'long_name',
postal_code: 'short_name'
};
function initAutocomplete() {
// Create the autocomplete object, restricting the search to geographical
// location types.
autocomplete = new google.maps.places.Autocomplete(
/** @type {!htmlInputElement} */
(document.getElementById('autocomplete')), {
types: ['geocode']
});
// When the user selects an address from the dropdown, populate the address
// fields in the form.
autocomplete.addListener('place_changed', fillInAddress);
}
// [START region_fillform]
function fillInAddress() {
// Get the place details from the autocomplete object.
var place = autocomplete.getPlace();
for (var component in componentForm) {
document.getElementById(component).value = '';
document.getElementById(component).disabled = false;
}
// Get each component of the address from the place details
// and fill the corresponding field on the form.
for (var i = 0; i < place.address_components.length; i++) {
var addressType = place.address_components[i].types[0];
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
document.getElementById(addressType).value = val;
}
}
}
// [END region_fillform]
// [START region_geolocation]
// Bias the autocomplete object to the user's geographical location,
// as supplied by the browser's 'navigator.geolocation' object.
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = {
lat: position.coords.latitude,
lng: position.coords.longitude
};
var circle = new google.maps.Circle({
center: geolocation,
radius: position.coords.accuracy
});
autocomplete.setBounds(circle.getBounds());
});
}
}
// [END region_geolocation]
google.maps.event.addDomListener(window, 'load', initAutocomplete);#locationField,
#controls {
position: relative;
width: 480px;
}
#autocomplete {
position: absolute;
top: 0px;
left: 0px;
width: 99%;
}
.label {
text-align: right;
font-weight: bold;
width: 100px;
color: #303030;
}
#address {
border: 1px solid #000090;
background-color: #f0f0ff;
width: 480px;
padding-right: 2px;
}
#address td {
font-size: 10pt;
}
.field {
width: 99%;
}
.slimField {
width: 80px;
}
.wideField {
width: 200px;
}
#locationField {
height: 20px;
margin-bottom: 2px;
}<script src="https://maps.googleapis.com/maps/api/js?libraries=places"></script>
<div id="locationField">
<input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text"></input>
</div>
<table id="address">
<tr>
<td class="label">Street address</td>
<td class="slimField">
<input class="field" id="street_number" disabled="true"></input>
</td>
<td class="wideField" colspan="2">
<input class="field" id="route" disabled="true"></input>
</td>
</tr>
<tr>
<td class="label">City</td>
<td class="wideField" colspan="3">
<input class="field" id="locality" disabled="true"></input>
</td>
</tr>
<tr>
<td class="label">State</td>
<td class="slimField">
<input class="field" id="administrative_area_level_1" disabled="true"></input>
</td>
<td class="label">Zip code</td>
<td class="wideField">
<input class="field" id="postal_code" disabled="true"></input>
</td>
</tr>
<tr>
<td class="label">Country</td>
<td class="wideField" colspan="3">
<input class="field" id="country" disabled="true"></input>
</td>
</tr>
</table>另一答案
谢谢！我没有更改componentForm，而是添加了：
place.address_components[i].short_name;
以下是修订后的IF stmt：
if (componentForm[addressType]) {
var val = place.address_components[i][componentForm[addressType]];
var valShort = place.address_components[i].short_name;
if(addressType == 'locality') addCity = val;
if(addressType == 'administrative_area_level_1') addProvince = val;
if(addressType == 'country') addCountry = val;
if(addressType == 'administrative_area_level_1'){
addProvinceShort = valShort;
}
}
另一答案
另一种使用JS Array方法的方法，IMO比带有嵌套for语句的if循环更具可读性：
const city = address_components.find(item => item.types.includes('locality'))
const province = address_components.find(item => item.types.includes('administrative_area_level_1'))
const country = address_components.find(item => item.types.includes('country'))
const addCity = city.long_name
const addProvince = province.short_name
const addCountry = country.long_name
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