使用自动填充功能设置自定义地点后,Google地图标记无法保持可拖动状态

问题描述 投票:1回答:1

因此,我正在尝试制作自定义Google地图,用户可以使用输入(对地点使用自动填充建议)来选择地图中的位置或拖动标记以选择位置。

当我创建没有自动完成功能的地图时,地图上的标记仍然可以拖动。但是,一旦我添加自动完成侦听器,使用自动完成功能一次,标记就不再可以拖动。

这是我正在使用的JS代码:

defaultLatLong = {lat: xxxx lng: xxxx};

var map = new google.maps.Map(document.getElementById('map'), {
  center: defaultLatLong,
  zoom: 13,
  mapTypeId: 'roadmap'
});

var input = document.getElementById('pac-input');

var autocomplete = new google.maps.places.Autocomplete(input);

autocomplete.bindTo('bounds',map);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);

var marker = new google.maps.Marker({
    map: map,
    position: defaultLatLong,
    draggable: true,
    clickable: true
});

google.maps.event.addListener(marker, 'dragend', function(marker){
    var latLng = marker.latLng;
    currentLatitude = latLng.lat();
    currentLongitude = latLng.lng();
    var latlng = {lat: currentLatitude, lng: currentLongitude};
    var geocoder = new google.maps.Geocoder;
    geocoder.geocode({'location': latlng}, function(results, status) {
          if (status === 'OK') {
            if (results[0]) {
              input.value = results[0].formatted_address;
            } else {
              window.alert('No results found');
            }
          } else {
            window.alert('Geocoder failed due to: ' + status);
          }
        });
});

autocomplete.addListener('place_changed', function() {
    var place = autocomplete.getPlace();
    if (!place.geometry) {
      return;
    }
    if (place.geometry.viewport) {
      map.fitBounds(place.geometry.viewport);
    } else {
      map.setCenter(place.geometry.location);
    }

    marker.setPlace({
      placeId: place.place_id,
      location: place.geometry.location
    });

    currentLatitude = place.geometry.location.lat();
    currentLongitude = place.geometry.location.lng();

  });

解决这个问题的任何方法?

javascript google-maps google-maps-markers google-places-api
1个回答
2
投票

看起来如果你使用标记的.setPlace()方法它是不可拖动的。

请改用.setPosition()方法。

更换:

marker.setPlace({
  placeId: place.place_id,
  location: place.geometry.location
});

有:

marker.setPosition(place.geometry.location);

proof of concept fiddle

代码段:

defaultLatLong = {
  lat: 40.7127753,
  lng: -74.0059728
};

var map = new google.maps.Map(document.getElementById('map'), {
  center: defaultLatLong,
  zoom: 13,
  mapTypeId: 'roadmap'
});

var input = document.getElementById('pac-input');

var autocomplete = new google.maps.places.Autocomplete(input);

autocomplete.bindTo('bounds', map);
map.controls[google.maps.ControlPosition.TOP_LEFT].push(input);

var marker = new google.maps.Marker({
  map: map,
  position: defaultLatLong,
  draggable: true,
  clickable: true
});

google.maps.event.addListener(marker, 'dragend', function(marker) {
  var latLng = marker.latLng;
  currentLatitude = latLng.lat();
  currentLongitude = latLng.lng();
  var latlng = {
    lat: currentLatitude,
    lng: currentLongitude
  };
  var geocoder = new google.maps.Geocoder;
  geocoder.geocode({
    'location': latlng
  }, function(results, status) {
    if (status === 'OK') {
      if (results[0]) {
        input.value = results[0].formatted_address;
      } else {
        window.alert('No results found');
      }
    } else {
      window.alert('Geocoder failed due to: ' + status);
    }
  });
});

autocomplete.addListener('place_changed', function() {
  var place = autocomplete.getPlace();
  if (!place.geometry) {
    return;
  }
  if (place.geometry.viewport) {
    map.fitBounds(place.geometry.viewport);
  } else {
    map.setCenter(place.geometry.location);
  }

  marker.setPosition(place.geometry.location);

  currentLatitude = place.geometry.location.lat();
  currentLongitude = place.geometry.location.lng();

});
html,
body,
#map {
  height: 100%;
  width: 100%;
  margin: 0px;
  padding: 0px
}
<script src="https://maps.googleapis.com/maps/api/js?libraries=geometry,places&ext=.js"></script>
<input id="pac-input" />
<div id="map"></div>
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