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问谷歌地图InfoWindow内容绑定
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Stack Overflow用户

提问于 2012-01-31 16:29:18

回答 1查看 5K关注 0票数 1

我是谷歌地图的新手。我在重新绑定infowindow中的数据时遇到了问题。

当我使用信息窗口右上角的"x“按钮关闭窗口时，

然后再次打开它，infowindow中所有更新的内容将再次加载到其初始状态，而不是最新更新？我想要的是当我关闭

infowindow，infowindow必须有最新的数据。

<!DOCTYPE html >
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>PHP/MySQL & Google Maps Example</title>

<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript" src="D:\Program Files\xampp\xampp\htdocs\googletest\progressBar.js"></script>
<script type="text/javascript">

//<![CDATA[

var infoWindow=new Array();
var htmlPrevious=new Array();
var html;
var marker=new Array();

function load() {
    var map = new google.maps.Map(document.getElementById("map"), {
    center: new google.maps.LatLng(7.11425, 124.83758),
    zoom: 11,
    mapTypeId: 'roadmap'
});
  
downloadUrl("phpsqlajax_genxml.php", function(data) {
    var xml = data.responseXML;
    var markers = xml.documentElement.getElementsByTagName("marker");
    html = new Array(markers.length);
    infowindow = new Array(markers.length);
    
    for (var i = 0; i < markers.length; i++) {
        infoWindow[i] = new google.maps.InfoWindow;
        var sender = markers[i].getAttribute("sender");
        var update = markers[i].getAttribute("update_time");
        var name = markers[i].getAttribute("name");
    var humidity = markers[i].getAttribute("humidity");
    var temperature = markers[i].getAttribute("temperature");
    var rain = markers[i].getAttribute("rain");
        var wind_dir = markers[i].getAttribute("wind_dir");
    var wind_speed = markers[i].getAttribute("wind_speed");
    var image = markers[i].getAttribute("image");
        var point = new google.maps.LatLng(
          parseFloat(markers[i].getAttribute("lat")),
          parseFloat(markers[i].getAttribute("lng")));
      
          
        html[i] = "<div style='display:block;' width='600' height='300' overflow='hidden'><img style='display:block;' src='"+image+" ' width='300' height='184' /> <br/><b>" + name + "</b> <br/>Sender: " + sender + "<br/>Time: " + update + "<br/> Humidity: " + humidity + "<br/>Temperature: " + temperature + "<br/>Rain: " + rain + "<br/>Wind Direction:   " + wind_dir + "<br/>Wind Speed: " + wind_speed + "<div>";
      
     
      htmlPrevious[i]=html[i];
      
       marker[i] = new google.maps.Marker({
        map: map,
        position: point,
    title: name 
      });
    
      bindInfoWindow(marker[i], map, infoWindow[i], html[i]);
      
    }//end for loop
  });//downloadurl
  setInterval("refreshMarker()",1000);
}

function refreshMarker(){
    downloadUrl("phpsqlajax_genxml.php", function(data) {
    var xml = data.responseXML;
    var markers = xml.documentElement.getElementsByTagName("marker");
    
    for (var i = 0; i < markers.length; i++) {
      var sender = markers[i].getAttribute("sender");
      var update = markers[i].getAttribute("update_time");
      var name = markers[i].getAttribute("name");
      var humidity = markers[i].getAttribute("humidity");
      var temperature = markers[i].getAttribute("temperature");
      var rain = markers[i].getAttribute("rain");
      var wind_dir = markers[i].getAttribute("wind_dir");
      var wind_speed = markers[i].getAttribute("wind_speed");
      var image = markers[i].getAttribute("image");
      var point = new google.maps.LatLng(
          parseFloat(markers[i].getAttribute("lat")),
          parseFloat(markers[i].getAttribute("lng")));
    
       html[i] = "<div style='display:block;' width='600' height='300' overflow='hidden'><img style='display:block;' src='"+image+" ' width='300' height='184' /> <br/><b>" + name + "</b> <br/>Sender: " + sender + "<br/>Time: " + update + "<br/> Humidity: " + humidity + "<br/>Temperature: " + temperature + "<br/>Rain: " + rain + "<br/>Wind Direction:   " + wind_dir + "<br/>Wind Speed: " + wind_speed + "<div>";
       

        if (html[i]!=htmlPrevious[i]){
        htmlPrevious[i]=html[i];
        
    
        
    infoWindow[i].setContent(html[i]);
        
        google.maps.event.addListener(marker, 'click', function() {
        infoWindow[i].set("marker",null);
        infoWindow[i].close();
           bindInfoWindow(marker[i], map, infoWindow[i], html[i]);
           infoWindow[i]=infoWindow;
  });
        }
        //infoWindow.open(map, marker);
    

    }
  });
}

function bindInfoWindow(marker, map, infoWindow, html) {
  google.maps.event.addListener(marker, 'click', function() {
    infoWindow.setContent(html);
    infoWindow.open(map, marker);
    alert("imhere");
  });
}

function closeInfoWindow(marker, map, infoWindow, html) {
  google.maps.event.addListener(marker, 'closeclick', function() {
    infoWindow.close();
    alert("im here");
  });
}

function downloadUrl(url, callback) {
  var request = window.ActiveXObject ?
      new ActiveXObject('Microsoft.XMLHTTP') :
      new XMLHttpRequest;

  request.onreadystatechange = function() {
    if (request.readyState == 4) {
      request.onreadystatechange = doNothing;
      callback(request, request.status);
    }
  };

  request.open('GET', url, true);
  request.send(null);
}

function doNothing() {}

//]]>

</script>
</head>

<body onload="load()">
    <div id="map" style="width: 1330px; height: 610px"></div>
</body>

</html>

任何帮助都将不胜感激..:-)

javascript

google-maps-api-3

dom-events

回答 1

Stack Overflow用户

回答已采纳

发布于 2012-02-01 07:00:31

将您的函数更新为：

function bindInfoWindow(marker, map, infoWindow, html) {
    google.maps.event.addListener(marker, 'click', function() {
         infoWindow.setContent(html);
         infoWindow.open(map, marker);
    });
}

票数 2

页面原文内容由Stack Overflow提供。腾讯云小微IT领域专用引擎提供翻译支持

原文链接：

https://stackoverflow.com/questions/9076496

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