Google Maps API 自动完成同一页面上的第二个地址字段

我在我的页面上使用 Google Maps API，该页面要求用户填写您的“当前地址”和“新地址”。

我可以让自动完成功能在第一个地址上工作，但它不适用于第二个地址，我做了很多研究并查看了 stackoverflow 上的类似帖子，但我找不到任何遇到同样问题的人。

这是我的代码；

<div id="locationField">
    <input id="autocomplete" placeholder="Start typing your address" onFocus="geolocate()" type="text"></input>
</div>

<div id="addressone">
    <input type="text" id="street_number" name="street_number"></input>
    <input type="text" id="route" name="street_name"></input>
    <input type="text" id="locality" name="town_city"></input>
    <input type="text" id="postal_code" name="postcode"></input>
    <input type="text" id="country" name="country"></input>
</div>

<div id="locationField2">
    <input id="autocomplete2" placeholder="Start typing your address" onFocus="geolocate()" type="text"></input>
</div>

<div id="addresstwo">
    <input type="text" id="street_number2" name="street_number2"></input>
    <input type="text" id="route2" name="street_name2"></input>
    <input type="text" id="locality2" name="town_city2"></input>
    <input type="text" id="postal_code2" name="postcode2"></input>
    <input type="text" id="country2" name="country2"></input>
</div>
<script>

    // 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: 'short_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]

</script>
<script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyC7XIOPnu4WS_fBaIDPkCBdYa3MxdIcdK4&signed_in=true&libraries=places&callback=initAutocomplete" async defer></script>
</div>

您需要处理两个自动完成输入。这是一个通用版本fillInAddress它将处理带有具有唯一扩展名的字段的多个自动完成对象（表单的第二个版本中的“2”）：

function fillInAddress(autocomplete, unique) {
    // Get the place details from the autocomplete object.
    var place = autocomplete.getPlace();

    for (var component in componentForm) {
        if(!!document.getElementById(component + unique)){
            document.getElementById(component + unique).value = '';
            document.getElementById(component + unique).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] && document.getElementById(addressType + unique)) {
            var val = place.address_components[i][componentForm[addressType]];
            document.getElementById(addressType + unique).value = val;
        }
    }
}

像这样称呼它：

// 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', function () {
    fillInAddress(autocomplete, "");
});

// Create the second autocomplete object, restricting the search to geographical
// location types.
autocomplete2 = new google.maps.places.Autocomplete(
/** @type {!HTMLInputElement} */
(document.getElementById('autocomplete2')), {
    types: ['geocode']
});
autocomplete2.addListener('place_changed', function () {
    fillInAddress(autocomplete2, "2");
});

工作代码片段：

// 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, autocomplete2;
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'
};

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', function() {
    fillInAddress(autocomplete, "");
  });

  autocomplete2 = new google.maps.places.Autocomplete(
    /** @type {!HTMLInputElement} */
    (document.getElementById('autocomplete2')), {
      types: ['geocode']
    });
  autocomplete2.addListener('place_changed', function() {
    fillInAddress(autocomplete2, "2");
  });

}

function fillInAddress(autocomplete, unique) {
  // Get the place details from the autocomplete object.
  var place = autocomplete.getPlace();

  for (var component in componentForm) {
    if (!!document.getElementById(component + unique)) {
      document.getElementById(component + unique).value = '';
      document.getElementById(component + unique).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] && document.getElementById(addressType + unique)) {
      var val = place.address_components[i][componentForm[addressType]];
      document.getElementById(addressType + unique).value = val;
    }
  }
}
google.maps.event.addDomListener(window, "load", initAutocomplete);

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());
    });
  }
}

<script src="https://maps.googleapis.com/maps/api/js?libraries=places&key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script>
<div id="locationField">
  <input id="autocomplete" placeholder="Start typing your address" onFocus="geolocate()" type="text" />
</div>
<div id="addressone">
  <input type="text" id="street_number" name="street_number" />
  <input type="text" id="route" name="street_name" />
  <input type="text" id="locality" name="town_city" />
  <input type="text" id="administrative_area_level_1" name="administrative_area_level_1" />
  <input type="text" id="postal_code" name="postcode" />
  <input type="text" id="country" name="country" />
</div>
<div id="locationField2">
  <input id="autocomplete2" placeholder="Start typing your address" onFocus="geolocate()" type="text" />
</div>
<div id="addresstwo">
  <input type="text" id="street_number2" name="street_number2" />
  <input type="text" id="route2" name="street_name2" />
  <input type="text" id="locality2" name="town_city2" />
  <input type="text" id="administrative_area_level_12" name="administrative_area_level_12" />
  <input type="text" id="postal_code2" name="postcode2" />
  <input type="text" id="country2" name="country2" />
</div>