Google Map信息窗口未加载

Question

I have used google-maps Api V3 map and markers are loading perfectly but the info window is not loading, Neither it doesn't shows any error, when i place an alert in the info-window it doesn't show any alert but the data is loaded into the map Let me know where i have done the mistake, Is this the correct way of loading the map using the function which i have written for Thanks in advance

function initMap() {
            // Create the map.
            // var map;
            var infoWindow = new google.maps.InfoWindow(); 
            var map = new google.maps.Map(document.getElementById('mapView'), {
              zoom: 6,
              center: {lat: 20.5937, lng: 78.9629}, 
              mapTypeId: 'roadmap'
            });
             $.getJSON('data.php', function(data){
                 // alert(data);
                 // alert(JSON.stringify(data));
                var marker = [];
                var infoWindow = [];
                var contentString = [];
                var bounds = new google.maps.LatLngBounds();
                for(var sd in data){
                    contentString[sd] = '<div id="content">'+
                        '<div id="siteNotice">'+
                        '</div>'+
                        '<h1 id="firstHeading" class="firstHeading">'+data[sd].hqname+'</h1>'+
                        '<div id="bodyContent">'+
                            '<p><b>Division: </b>'+data[sd].division+'</p>'+
                            '<p><b>From: </b>'+data[sd].fromareaname+'</p>'+
                            '<p><b>To: </b>'+data[sd].toareaname+'</p>'+
                            '<p><b>Category: </b>'+data[sd].ta+'</p>'+
                            '<p><b>Distance: </b>'+data[sd].dist+'</p>'+
                            '<p><b>Calculated Distance: </b>'+data[sd].distance+'</p>'+
                        '</div>'+
                    '</div>';

                    infoWindow[sd] = new google.maps.InfoWindow({
                      content: contentString[sd]
                      // alert(contentString)
                    });


                    if(data[sd].type == 1){
                        marker[sd] = new google.maps.Marker({
                            icon: 'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
                            position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                            map: map,
                            infowindow: infowindow[sd]
                        });
                    }
                    if(data[sd].type == 2){
                        marker[sd] = new google.maps.Marker({
                            icon: 'http://maps.google.com/mapfiles/ms/icons/blue-dot.png',
                            position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                            map: map,
                            infowindow: infowindow[sd]
                        });
                    }
                    if(data[sd].type == 3){
                        marker[sd] = new google.maps.Marker({
                            icon: 'http://maps.google.com/mapfiles/ms/icons/red-dot.png',
                            position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                            map: map,
                            infowindow: infowindow[sd]
                        });
                    }

                   bounds.extend(marker[sd].position);
                }

                    map.fitBounds(bounds); 

            });


    }

Edited Code

function initMap() {
        // Create the map.
        <!-- // var map; -->
        //alert("map ");

        var infoWindow = new google.maps.InfoWindow(); 
        var map = new google.maps.Map(document.getElementById('mapView'), {
          zoom: 6,
          center: {lat: 20.5937, lng: 78.9629}, 
          mapTypeId: 'roadmap'
        });
         $.getJSON('data.php', function(data){
              // alert(data);
               // alert(JSON.stringify(data));
            var marker = [];
            var infowindow = [];
            var contentString = [];
            var bounds = new google.maps.LatLngBounds();
            for(var sd in data){
                // alert(sd);
                contentString[sd] = '<div id="content">'+
                    '<div id="siteNotice">'+
                    '</div>'+
                    '<h1 id="firstHeading" class="firstHeading">'+data[sd].shopname+'</h1>'+
                    '<div id="bodyContent">'+
                        '<p><b>Subarea: </b>'+data[sd].subarea+'</p>'+
                        '<p><b>Mobile: </b>'+data[sd].mobile+'</p>'+
                        '<p><b>Category: </b>'+data[sd].category+'</p>'+
                        '</div>'+
                '</div>';

                infowindow[sd] = new google.maps.InfoWindow({
                  content: contentString[sd]
                });



                if(data[sd].type == 1){
                   marker[sd] = new google.maps.Marker({
                        icon: 'http://maps.google.com/mapfiles/ms/icons/blue-dot.png',
                        position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                        map: map,
                        infowindow: infowindow[sd]
                    });
                }
                if(data[sd].type == 2){
                    marker[sd] = new google.maps.Marker({
                        icon: 'http://maps.google.com/mapfiles/ms/icons/red-dot.png',
                        position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                        map: map,
                        infowindow: infowindow[sd]
                    });
                }
                if(data[sd].type == 3){

                marker[sd] = new google.maps.Marker({
                        icon: 'http://maps.google.com/mapfiles/ms/icons/green-dot.png',
                        position: {lat : parseFloat(data[sd].center.latitude),lng : parseFloat(data[sd].center.longitude)},
                        map: map,
                        infowindow: infowindow[sd]
                    });
                }

               bounds.extend(marker[sd].position);
              google.maps.event.addListener(marker[sd], 'click', function() { infowindow[sd].open(map,marker[sd]); }); 
            }

                map.fitBounds(bounds); 

        });




}

Answer 1

Similar question: Google Maps JS API v3 - Simple Multiple Marker Example

You need function closure on sd in the marker click listener.

example from the documentation (using a named function)

Using an Immediately Invoked Function Expression (IIEF) :

google.maps.event.addListener(marker[sd], 'click', (function(sd) {
   return function() {
  infowindow[sd].open(map, marker[sd]);
}}(sd)));

proof of concept fiddle

code snippet:

 function initMap() { var infoWindow = new google.maps.InfoWindow(); var map = new google.maps.Map(document.getElementById('mapView'), { zoom: 6, center: { lat: 20.5937, lng: 78.9629 }, mapTypeId: 'roadmap' }); google.maps.event.addListener(map, "click", function(evt) { console.log(evt.latLng.toUrlValue(6)); }) // $.getJSON('data.php', function(data){ var marker = []; var infowindow = []; var contentString = []; var bounds = new google.maps.LatLngBounds(); for (var sd in data) { // alert(sd); contentString[sd] = '<div id="content">' + '<div id="siteNotice">' + '</div>' + '<h1 id="firstHeading" class="firstHeading">' + data[sd].shopname + '</h1>' + '<div id="bodyContent">' + '<p><b>Subarea: </b>' + data[sd].subarea + '</p>' + '<p><b>Mobile: </b>' + data[sd].mobile + '</p>' + '<p><b>Category: </b>' + data[sd].category + '</p>' + '</div>' + '</div>'; infowindow[sd] = new google.maps.InfoWindow({ content: contentString[sd] }); if (data[sd].type == 1) { marker[sd] = new google.maps.Marker({ icon: 'http://maps.google.com/mapfiles/ms/icons/blue-dot.png', position: { lat: parseFloat(data[sd].center.latitude), lng: parseFloat(data[sd].center.longitude) }, map: map, infowindow: infowindow[sd] }); } if (data[sd].type == 2) { marker[sd] = new google.maps.Marker({ icon: 'http://maps.google.com/mapfiles/ms/icons/red-dot.png', position: { lat: parseFloat(data[sd].center.latitude), lng: parseFloat(data[sd].center.longitude) }, map: map, infowindow: infowindow[sd] }); } if (data[sd].type == 3) { marker[sd] = new google.maps.Marker({ icon: 'http://maps.google.com/mapfiles/ms/icons/green-dot.png', position: { lat: parseFloat(data[sd].center.latitude), lng: parseFloat(data[sd].center.longitude) }, map: map, infowindow: infowindow[sd] }); } bounds.extend(marker[sd].position); google.maps.event.addListener(marker[sd], 'click', (function(sd) { return function() { infowindow[sd].open(map, marker[sd]); } }(sd))); } map.fitBounds(bounds); // }); } google.maps.event.addDomListener(window, "load", initMap); // test data var data = [{ shopname: "fred", subarea: "area 1", mobile: "yes", category: "cat 1", center: { latitude: 23.644524, longitude: 74.487305 }, type: 1 }, { shopname: "george", subarea: "area 2", mobile: "yes", category: "cat 2", center: { latitude: 21.943046, longitude: 81.936035 }, type: 2 }, { shopname: "frank", subarea: "area 3", mobile: "yes", category: "cat 3", center: { latitude: 20.179724, longitude: 77.189941 }, type: 3 } ]; 

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

 <script src="https://maps.googleapis.com/maps/api/js"></script> <div id="mapView"></div>