将标记标签添加到谷歌地图标记

时间：2018-04-30 22:32:02

标签： javascript html5 google-maps-api-3 google-maps-markers

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<!DOCTYPE html>
<html>
  <head>
    <title>Geolocation</title>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <style>
      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 100%;
      }
      /* Optional: Makes the sample page fill the window. */
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
    </style>
    <!-- Place this inside the HTML head; don't use async defer for now -->
<script src="https://www.gstatic.com/firebasejs/4.12.1/firebase.js"></script>
<script src="https://cdn.firebase.com/libs/geofire/4.1.2/geofire.min.js"></script>

  <script>
        
        var config = {
    apiKey: "AIzaSyCWZjRe2CK8Hu2VN35AgZOQ7lQZKcI-UWM",
    authDomain: "carrier-35d7c.firebaseapp.com",
    databaseURL: "https://carrier-35d7c.firebaseio.com",
    projectId: "carrier-35d7c",
    storageBucket: "carrier-35d7c.appspot.com",
    messagingSenderId: "827792028763"
  };
        if (!firebase.apps.length) {
            firebase.initializeApp(config);
        }
        
        //Create a node at firebase location to add locations as child keys
        var locationsRef = firebase.database().ref("locations");
        
        // Create a new GeoFire key under users Firebase location
        var geoFire = new GeoFire(locationsRef.push());
      </script>


  </head>
  <body>
    <div id="map"></div>
    <script>
      // Note: This example requires that you consent to location sharing when
      // prompted by your browser. If you see the error "The Geolocation service
      // failed.", it means you probably did not give permission for the browser to
      // locate you.
      var map, infoWindow;
      var lat, lng;
      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          center: {lat: -34.397, lng: 150.644},
          zoom: 18

        });
        infoWindow = new google.maps.InfoWindow;
        // Try HTML5 geolocation.
        if (navigator.geolocation) {
          navigator.geolocation.getCurrentPosition(function(position) {
            lat = position.coords.latitude;
            lng = position.coords.longitude;
            var pos = {lat: lat, lng: lng };
                _setGeoFire();
              var locationsRef = firebase.database().ref("locations");
locationsRef.on('child_added', function(snapshot) {
  var data = snapshot.val();
  var markerLabel = 'Go';

  var marker = new google.maps.Marker({
    position: {
      lat: data.User.l[0],
      lng: data.User.l[1]


    },
    map: map
    label: markerLabel
  });
  bounds.extend(marker.getPosition());
  marker.addListener('click', (function(data) {
    return function(e) {
      infowindow.setContent(this.getPosition().toUrlValue(6) + "<br>" + data.User.g);
      infowindow.open(map, this);
    }
  }(data)));
  map.fitBounds(bounds);
});
          
            infoWindow.setPosition(pos);
            infoWindow.setContent('Current Location');
            infoWindow.open(map);
            map.setCenter(pos);
          }, function() {
            handleLocationError(true, infoWindow, map.getCenter());
          });
        } else {
          // Browser doesn't support Geolocation
          handleLocationError(false, infoWindow, map.getCenter());
        }
      }
      function handleLocationError(browserHasGeolocation, infoWindow, pos) {
        infoWindow.setPosition(pos);
        infoWindow.setContent(browserHasGeolocation ?
                              'Error: The Geolocation service failed.' :
                              'Error: Your browser doesn\'t support geolocation.');
        infoWindow.open(map);
      }
      function _setGeoFire(){
    geoFire.set("User", [lat, lng]).then(()=>{
            console.log("Location added");
        }).catch(function(error) {
            console.log(error);
        });
}
    </script>
    <script 
    src="https://maps.googleapis.com/maps/api/js?key=AIzaSyD2nPlSt_nM7PSKD8So8anbUbBYICFWcCA&callback=initMap">
    </script>
  </body>
</html>
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＆＃13; 我需要帮助为谷歌地图标记添加标签。它不断出现一个错误，表示意外的标识符。https://medium.com/@barvysta/google-marker-api-lets-play-level-1-dynamic-label-on-marker-f9b94f2e3585。我使用这个网站教程来制作标记标签。我不知道教程中是否有错误或者某些内容如果有人能帮我解决这个问题会很棒enter image description here

2 个答案:

答案 0 :(得分：1)

var marker = new google.maps.Marker({
  position: {
    lat: data.User.l[0],
    lng: data.User.l[1]
  },
  map: map,
  label: markerLabel
});

你忘了在map：map，

之后放一个逗号

答案 1 :(得分：0)

第93行有一个错字：

92:     map: map   // <------------- missing comma
93      label: markerLabel  //<----- unexpected identifier

Uncaught SyntaxError: Unexpected identifier js:93

代码段

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<!DOCTYPE html>
<html>

<head>
  <title>Geolocation</title>
  <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
  <meta charset="utf-8">
  <style>
    /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
    
    #map {
      height: 100%;
    }
    /* Optional: Makes the sample page fill the window. */
    
    html,
    body {
      height: 100%;
      margin: 0;
      padding: 0;
    }
  </style>
  <!-- Place this inside the HTML head; don't use async defer for now -->
  <script src="https://www.gstatic.com/firebasejs/4.12.1/firebase.js"></script>
  <script src="https://cdn.firebase.com/libs/geofire/4.1.2/geofire.min.js"></script>

  <script>
    var config = {
      apiKey: "AIzaSyCWZjRe2CK8Hu2VN35AgZOQ7lQZKcI-UWM",
      authDomain: "carrier-35d7c.firebaseapp.com",
      databaseURL: "https://carrier-35d7c.firebaseio.com",
      projectId: "carrier-35d7c",
      storageBucket: "carrier-35d7c.appspot.com",
      messagingSenderId: "827792028763"
    };
    if (!firebase.apps.length) {
      firebase.initializeApp(config);
    }

    //Create a node at firebase location to add locations as child keys
    var locationsRef = firebase.database().ref("locations");

    // Create a new GeoFire key under users Firebase location
    var geoFire = new GeoFire(locationsRef.push());
  </script>


</head>

<body>
  <div id="map"></div>
  <script>
    // Note: This example requires that you consent to location sharing when
    // prompted by your browser. If you see the error "The Geolocation service
    // failed.", it means you probably did not give permission for the browser to
    // locate you.
    var map, infoWindow;
    var lat, lng;

    function initMap() {
      map = new google.maps.Map(document.getElementById('map'), {
        center: {
          lat: -34.397,
          lng: 150.644
        },
        zoom: 18

      });
      infoWindow = new google.maps.InfoWindow;
      // Try HTML5 geolocation.
      if (navigator.geolocation) {
        navigator.geolocation.getCurrentPosition(function(position) {
          lat = position.coords.latitude;
          lng = position.coords.longitude;
          var pos = {
            lat: lat,
            lng: lng
          };
          _setGeoFire();
          var locationsRef = firebase.database().ref("locations");
          locationsRef.on('child_added', function(snapshot) {
            var data = snapshot.val();
            var markerLabel = 'Go';

            var marker = new google.maps.Marker({
              position: {
                lat: data.User.l[0],
                lng: data.User.l[1]


              },
              map: map,
              label: markerLabel
            });
            bounds.extend(marker.getPosition());
            marker.addListener('click', (function(data) {
              return function(e) {
                infowindow.setContent(this.getPosition().toUrlValue(6) + "<br>" + data.User.g);
                infowindow.open(map, this);
              }
            }(data)));
            map.fitBounds(bounds);
          });

          infoWindow.setPosition(pos);
          infoWindow.setContent('Current Location');
          infoWindow.open(map);
          map.setCenter(pos);
        }, function() {
          handleLocationError(true, infoWindow, map.getCenter());
        });
      } else {
        // Browser doesn't support Geolocation
        handleLocationError(false, infoWindow, map.getCenter());
      }
    }

    function handleLocationError(browserHasGeolocation, infoWindow, pos) {
      infoWindow.setPosition(pos);
      infoWindow.setContent(browserHasGeolocation ?
        'Error: The Geolocation service failed.' :
        'Error: Your browser doesn\'t support geolocation.');
      infoWindow.open(map);
    }

    function _setGeoFire() {
      geoFire.set("User", [lat, lng]).then(() => {
        console.log("Location added");
      }).catch(function(error) {
        console.log(error);
      });
    }
  </script>
  <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyD2nPlSt_nM7PSKD8So8anbUbBYICFWcCA&callback=initMap">
  </script>
</body>

</html>
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