Javascript 从文本框中的google API中选择位置后的事件_Javascript_Html_Google Maps_Google Search

Javascript 从文本框中的google API中选择位置后的事件

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Javascript 从文本框中的google API中选择位置后的事件,javascript,html,google-maps,google-search,Javascript,Html,Google Maps,Google Search,我不熟悉JavaScript和谷歌API。我想在用户在文本框中选择Google API建议的位置时执行操作。当用户在文本框中选择任何位置时，我无法执行该操作。请帮助我。我正在使用这个代码 <!DOCTYPE html> <html> <head> <title>Place Autocomplete Address Form</title> <meta name="viewport" content="initi

我不熟悉JavaScript和谷歌API。我想在用户在文本框中选择Google API建议的位置时执行操作。当用户在文本框中选择任何位置时，我无法执行该操作。请帮助我。我正在使用这个代码

<!DOCTYPE html>
<html>
  <head>
    <title>Place Autocomplete Address Form</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <style>
      html, body, #map-canvas {
        height: 100%;
        margin: 0px;
        padding: 0px
      }
    </style>
    <link type="text/css" rel="stylesheet" href="https://fonts.googleapis.com/css?family=Roboto:300,400,500">
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&libraries=places"></script>
    <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 initialize() {
        // 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.
        google.maps.event.addListener(autocomplete, 'place_changed', function() {
          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 = new google.maps.LatLng(
                position.coords.latitude, position.coords.longitude);
            autocomplete.setBounds(new google.maps.LatLngBounds(geolocation,
                geolocation));
          });
        }
      }
      // [END region_geolocation]

    </script>

    <style>
      #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;
      }
    </style>
  </head>

  <body onload="initialize()">
    <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>
  </body>
</html>

您可以使用：

google.maps.event.addListener(autocomplete, 'place_changed', function() {
    fillInAddress();
    alert("aaa"); // Here you can perform any action
});