無法讀取未定義的屬性“ open”。 Google Maps Infowindow循環

Question

我正在使用Google Maps API生成帶有幾個標記的地圖，每個標記都有一個信息窗口。

所有必要的細節（緯度，經度）都打印在HTML中，我使用JS循環來獲取這些值，以創建標記和信息窗口。

該地圖生成正常，但是當我應該打開一個信息窗口時，當我單擊一個標記時，會顯示“ Uncaught TypeError：無法讀取未定義的屬性'open'”

HTML：

<select>
    <option class="markerobject" data-title="Headquarters" data-address="Suite 707, 2 Huntley St Alexandria NSW 2015" data-latitude="-33.911063" data-longitude="151.193590">Headquarters</option>
    <option class="markerobject" data-title="Melbourne" data-address="Westfield, Carindale Ground level, Kiosk 112 Carindale QLD 4152" data-latitude="-27.505068" data-longitude="153.101718">Melbourne</option>
    <option class="markerobject" data-title="Brisbane" data-address="Myer Centre Brisbane Shop 112 (Next to shaver shop) Brisbane QLD 4000" data-latitude="-27.466099" data-longitude="153.023588">Brisbane</option>
    <option class="markerobject" data-title="Carindale" data-address="Westfield, Carindale Ground level, Kiosk 112 Carindale QLD 4152" data-latitude="-27.505068" data-longitude="153.101718">Carindale</option>
</select>

使用Javascript：

function initialize() {

    var myLatlng = new google.maps.LatLng(-25.363882,131.044922);
    var mapOptions = {
        zoom: 4,
        center: myLatlng
    };
    var map = new google.maps.Map(document.getElementById('allstores'), mapOptions);

    var fonekingicon = document.getElementById("mappointer");
    var fonekingiconsrc = fonekingicon.getAttribute("src");

    var markerObjects = document.getElementsByClassName("markerobject");

    var markers = [];
    var infowindows = [];

    for (var i = 0; i < markerObjects.length; ++i) {

        infowindows[i] = new google.maps.InfoWindow({
              content: markerObjects[i].getAttribute("title")
          });

        markers[i] = new google.maps.Marker({
            position: new google.maps.LatLng(
                markerObjects[i].getAttribute("data-latitude")
                ,
                markerObjects[i].getAttribute("data-longitude")         
            ),
            map: map,
            icon: fonekingiconsrc
        });

        google.maps.event.addListener(markers[i], 'click', function() {
            infowindows[i].open(map,markers[i]);
        });
    } 
}

google.maps.event.addDomListener(window, 'load', initialize);

Answer 1

您的信息窗口上沒有函數關閉功能，請參見Google Maps JS API v3-簡單多個標記示例

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

您的代碼中也有錯字，markerObjects沒有屬性“ title”，應為“ data-title”

infowindows[i] = new google.maps.InfoWindow({
      content: markerObjects[i].getAttribute("data-title")
})

工作小提琴

 function initialize() { var myLatlng = new google.maps.LatLng(-25.363882, 131.044922); var mapOptions = { zoom: 4, center: myLatlng }; var map = new google.maps.Map(document.getElementById('allstores'), mapOptions); // var fonekingicon = document.getElementById("mappointer"); //var fonekingiconsrc = fonekingicon.getAttribute("src"); var markerObjects = document.getElementsByClassName("markerobject"); var markers = []; var infowindows = []; var bounds = new google.maps.LatLngBounds(); for (var i = 0; i < markerObjects.length; ++i) { infowindows[i] = new google.maps.InfoWindow({ content: markerObjects[i].getAttribute("data-title") }); markers[i] = new google.maps.Marker({ position: new google.maps.LatLng( markerObjects[i].getAttribute("data-latitude"), markerObjects[i].getAttribute("data-longitude") ), map: map // icon: fonekingiconsrc }); google.maps.event.addListener(markers[i], 'click', (function(marker, i) { return function() { infowindows[i].open(map, markers[i]); } })(markers[i], i)); bounds.extend(markers[i].getPosition()); } map.fitBounds(bounds); } google.maps.event.addDomListener(window, 'load', initialize); 

 html, body, #allstores { height: 500px; width: 500px; margin: 0px; padding: 0px } 

 <script src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk"></script> <div id="allstores" style="width:750px; height:450px; border: 2px solid #3872ac;"></div> <select> <option class="markerobject" data-title="Headquarters" data-address="Suite 707, 2 Huntley St Alexandria NSW 2015" data-latitude="-33.911063" data-longitude="151.193590">Headquarters</option> <option class="markerobject" data-title="Melbourne" data-address="Westfield, Carindale Ground level, Kiosk 112 Carindale QLD 4152" data-latitude="-27.505068" data-longitude="153.101718">Melbourne</option> <option class="markerobject" data-title="Brisbane" data-address="Myer Centre Brisbane Shop 112 (Next to shaver shop) Brisbane QLD 4000" data-latitude="-27.466099" data-longitude="153.023588">Brisbane</option> <option class="markerobject" data-title="Carindale" data-address="Westfield, Carindale Ground level, Kiosk 112 Carindale QLD 4152" data-latitude="-27.505068" data-longitude="153.101718">Carindale</option> </select>