如何将标记移动到AutoComplete API预测地址? [英] How to move marker to AutoComplete API predicted address?

问题描述

我正试图通过以下几行做到这一点:

I'm trying to do this by these lines:

 var marker = new   google.maps.Marker({
    position: geolocation,
    animation: google.maps.Animation.BOUNCE
    });
    marker.setPosition(geolocation);

在代码中已注释.它什么也没做. 可能是逻辑错误或放置在错误的位置. 我正在使用Google自动填充API.我已经修改了自动填充文档页面上的自动填充地址演示.在此处的超链接中添加了

which are commented in the code. It does nothing. May be it is wrong logic or placed at wrong position. I am using google autocomplete API. I have modified the autofill address demo on autocomplete documentation page.which is added in hyperlink here

    <script>

      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() {


        var mapCanvas = document.getElementById("map");
  var myCenter = new google.maps.LatLng(62,-110.0); 
  var mapOptions = {center: myCenter, zoom: 3};
  var map = new google.maps.Map(mapCanvas,mapOptions);
  var marker = new google.maps.Marker({
    position: myCenter,
    animation: google.maps.Animation.BOUNCE
  });
  google.maps.event.addListener(marker,'click',function() {
  map.setZoom(2*mapOptions.zoom);
  map.setCenter(marker.getPosition());
  });
marker.setMap(map);

         google.maps.event.addListener(map, "click", function (e) {

       //lat and lng is available in e object
        placeMarker(map, e.latLng); 
       // var latLng = e.latLng;
       // console.log("lat" + latLng.lat() + "long" + latLng.lng());
       });
         function placeMarker(map, location) {

    marker.setPosition(location);

  var infowindow = new google.maps.InfoWindow({
    content: 'Latitude: ' + location.lat() + '<br>Longitude: ' + location.lng()
  });
  infowindow.open(map,marker);
}





        // 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);
      }

      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]];
            console.log(val);
            document.getElementById(addressType).value = val;
          }
        }
      }

      // 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

            };
             console.log(geolocation.lat);
             // var marker = new google.maps.Marker({
             //  position: geolocation,
             //  animation: google.maps.Animation.BOUNCE
             //  });
             // marker.setPosition(geolocation);

            var circle = new google.maps.Circle({
              center: geolocation,
              radius: position.coords.accuracy
            });
            autocomplete.setBounds(circle.getBounds());
          });
        }
      }
    </script>

推荐答案

要将标记放置在自动完成结果返回的位置上，请将其添加到fillInAddress函数中(该函数在选择位置"时运行)并通过调用autocomplete.getPlace();)

To place a marker on the position returned by the Autocomplete result, add it in the fillInAddress function (which is runs on the selection of a "place" and gets the result by calling autocomplete.getPlace();)

function fillInAddress() {
  // Get the place details from the autocomplete object.
  var place = autocomplete.getPlace();
  if (marker && marker.setMap) 
    marker.setMap(null);
  marker = new google.maps.Marker({
    position: place.geometry.location,
    animation: google.maps.Animation.BOUNCE,
    map: map
  });
  marker.setPosition(place.geometry.location);
  map.setCenter(place.geometry.location);
  if (place.geometry.viewport) 
    map.fitBounds(place.geometry.viewport);

  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]];
      console.log(val);
      document.getElementById(addressType).value = val;
    }
  }
}

上面的代码假定marker和map在全局(或至少是封闭的)范围内.

The above code assumes that marker and map are in the global (or at least an enclosing) scope.

概念证明小提琴

代码段:

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 map;
var marker;

function initAutocomplete() {
  var mapCanvas = document.getElementById("map");
  var myCenter = new google.maps.LatLng(62, -110.0);
  var mapOptions = {
    center: myCenter,
    zoom: 3
  };
  map = new google.maps.Map(mapCanvas, mapOptions);
  marker = new google.maps.Marker({
    position: myCenter,
    animation: google.maps.Animation.BOUNCE
  });
  google.maps.event.addListener(marker, 'click', function() {
    map.setZoom(2 * mapOptions.zoom);
    map.setCenter(marker.getPosition());
  });
  marker.setMap(map);

  google.maps.event.addListener(map, "click", function(e) {

    //lat and lng is available in e object
    placeMarker(map, e.latLng);
    // var latLng = e.latLng;
    // console.log("lat" + latLng.lat() + "long" + latLng.lng());
  });

  function placeMarker(map, location) {

    marker.setPosition(location);

    var infowindow = new google.maps.InfoWindow({
      content: 'Latitude: ' + location.lat() + '<br>Longitude: ' + location.lng()
    });
    infowindow.open(map, marker);
  }

  // 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);
}

function fillInAddress() {
  // Get the place details from the autocomplete object.
  var place = autocomplete.getPlace();
  if (marker && marker.setMap)
    marker.setMap(null);
  marker = new google.maps.Marker({
    position: place.geometry.location,
    animation: google.maps.Animation.BOUNCE,
    map: map
  });
  marker.setPosition(place.geometry.location);
  map.setCenter(place.geometry.location);
  if (place.geometry.viewport)
    map.fitBounds(place.geometry.viewport);

  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]];
      console.log(val);
      document.getElementById(addressType).value = val;
    }
  }
}

// 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
      };
      console.log(geolocation.lat);
    });
  }
}
google.maps.event.addDomListener(window, "load", initAutocomplete);

html,
body,
#map {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}

#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?key= 
AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&libraries=places"></script>
<div id="locationField">
  <input id="autocomplete" placeholder="Enter your address" onFocus="geolocate()" type="text" />
</div>

<table id="address">
  <tr>
    <td class="label">Street address</td>
    <td class="slimField">
      <input class="field" id="street_number" disabled="true" />
    </td>
    <td class="wideField" colspan="2">
      <input class="field" id="route" disabled="true" />
    </td>
  </tr>
  <tr>
    <td class="label">City</td>
    <!-- Note: Selection of address components in this example is typical.
             You may need to adjust it for the locations relevant to your app. See
             https://developers.google.com/maps/documentation/javascript/examples/places-autocomplete-addressform
        -->
    <td class="wideField" colspan="3">
      <input class="field" id="locality" disabled="true" />
    </td>
  </tr>
  <tr>
    <td class="label">State</td>
    <td class="slimField">
      <input class="field" id="administrative_area_level_1" disabled="true" />
    </td>
    <td class="label">Zip code</td>
    <td class="wideField">
      <input class="field" id="postal_code" disabled="true" />
    </td>
  </tr>
  <tr>
    <td class="label">Country</td>
    <td class="wideField" colspan="3">
      <input class="field" id="country" disabled="true" />
    </td>
  </tr>
</table>
<div id="map"></div>

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