<input class="flex-item" id="autocomplete" placeholder="address, zip or city" onFocus="geolocate()" type="text"></input>
var autocomplete;
function geolocate() {
if(!autocomplete){
autocomplete = new google.maps.places.Autocomplete(
(document.getElementById(‘autocomplete‘)),{ types: [‘geocode‘] });
}
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(
position.coords.latitude, position.coords.longitude);
var circle = new google.maps.Circle({
center: geolocation,
radius: position.coords.accuracy
});
autocomplete.setBounds(circle.getBounds());
});
}
}
<body onload="initialize()">
<form class="form-address" id="address">
<!-- Search Field -->
<div class="flex-container c-1column" id="locationField">
<label>Search for your address</label>
<input class="flex-item" id="autocomplete" placeholder="address, zip or city" onFocus="geolocate()" type="text"></input>
</div>
<!-- Street Address -->
<div class="flex-container">
<label>Street address</label>
<div class="flex-item c-2column"><input id="streetNo" ></input></div>
<div class="flex-item c-2column"><input id="route" ></input></div>
</div>
<!-- City -->
<div class="flex-container">
<label>City</label>
<input class="flex-item c-1column" id="city" ></input>
</div>
<!-- State & Zip -->
<div class="flex-container">
<div class="flex-item c-2column">
<label>State</label>
<input id="state" ></input>
</div>
<div class="flex-item c-2column">
<label>Zip code</label>
<input id="zipcode" ></input>
</div>
</div>
<!-- Country -->
<div class="flex-container">
<label>Country</label>
<input class="flex-item c-1column" id="country" ></input>
</div>
</form>
</body>
var placeSearch, autocomplete;
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‘
};
var myForm = {
street_number: ‘streetNo‘,
route: ‘route‘,
locality: ‘city‘,
administrative_area_level_1: ‘state‘,
country: ‘country‘,
postal_code: ‘zipcode‘
};
function initialize() {
autocomplete = new google.maps.places.Autocomplete(
(document.getElementById(‘autocomplete‘)),{ types: [‘geocode‘] });
google.maps.event.addListener(autocomplete, ‘place_changed‘, function() {
fillInAddress();
});
}
// [START region_fillform]
function fillInAddress() {
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]];
// alert(myForm[addressType])
document.getElementById(myForm[addressType]).value = val;
}
}
}
function geolocate() {
if (navigator.geolocation) {
navigator.geolocation.getCurrentPosition(function(position) {
var geolocation = new google.maps.LatLng(
position.coords.latitude, position.coords.longitude);
var circle = new google.maps.Circle({
center: geolocation,
radius: position.coords.accuracy
});
autocomplete.setBounds(circle.getBounds());
});
}
}
原文：http://www.cnblogs.com/jayruan/p/5995071.html