单击标记时在信息窗口内显示数组中的内容

Question

我有一个 api 端点，它 return 是一个地址数组和地址的一些价格信息，但它没有 return lat/lang，所以我我正在使用地理编码来显示地图上地址的标记，并在每次单击标记时显示信息窗口。现在我希望 infowindow 的内容是来自端点的数组 returned 中地址的价格。希望到目前为止还清楚。现在的问题是每次我单击标记时，信息窗口只显示每个信息窗口上数组的最后（相同）价格，而不显示与该地址相关的价格。请在下面查看我的代码（或检查 fiddlejs => https://jsfiddle.net/puLxak1k/7/）。可能是我试图在异步回调中调用同步，所以我尝试使用 $q.promise 并解析初始 api 调用并尝试在 .then 中调用 geocode.geocoder，但还没有成功。 .

    <div id="map-canvas"></div>
    function initialize() {
    var chicago = new google.maps.LatLng(41.850033, -87.6500523);
    var mapOptions = {
      zoom: 7,
      mapTypeId: google.maps.MapTypeId.ROADMAP,
      center: chicago
    }
    map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
    geocoder = new google.maps.Geocoder()
    var someArray = [{price: 10, address: 'cv64ad'}, {price: 20, address: 'cv59bp'}]
    for (var i = 0; i < someArray.length; i++) {
      var home = someArray[i]
      console.log(home.address)

      geocoder.geocode({'address': home.address}, function (results, status) {
        if (status == google.maps.GeocoderStatus.OK) {
          map.setCenter(results[0].geometry.location);
          map.setZoom(12);
          for (var i in results) {
            var marker = new google.maps.Marker({
              position: new google.maps.LatLng(results[i].geometry.location.A, results[i].geometry.location.F),
              map: map
            })
            google.maps.event.addListener(marker, 'click', someCallback(home))
            infowindow = new google.maps.InfoWindow();
            function someCallback(home) {
              return function (e) {
                if (infowindow != null) {
                  infowindow.close();
                }
                infowindow.setContent('<div class="infoheading">' + home.price + '</div>');
                infowindow.open(map, this);
              }
            }
          }
        }
      })
    }
  }

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

Answer 1

像这样： https://jsfiddle.net/jvxppeap/2/

诀窍是：创建一个包含标记对象的数组。然后，在 addListener(marker, 'click' ... 中检查点击了哪个标记；查看我的代码中的 "indexOf" 。使用该索引，您可以读取 someArray 的正确项目，并且可以在其中添加任何您想要的信息。

var markers = [];
var map;
var infowindow;
function initialize() {
  var chicago = new google.maps.LatLng(41.850033, -87.6500523);
  var mapOptions = {
    zoom: 7,
    mapTypeId: google.maps.MapTypeId.ROADMAP,
    center: chicago
  }
  map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
  geocoder = new google.maps.Geocoder();
  var someArray = [{price: 10, address: 'cv64ad'}, {price: 20, address: 'cv59bp'}];

  for (var i = 0; i < someArray.length; i++) {
    var home = someArray[i];
    console.log(home.address);

    geocoder.geocode({'address': home.address}, function (results, status) {
      if (status == google.maps.GeocoderStatus.OK) {
        map.setCenter(results[0].geometry.location);
        map.setZoom(12);
        for (var i in results) {
          var marker = new google.maps.Marker({
            position: new google.maps.LatLng(results[i].geometry.location.A, results[i].geometry.location.F),
            map: map
          });
          // push the marker on the markers array
          markers.push(marker);
          google.maps.event.addListener(marker, 'click', function (home) {
              if (infowindow != null) {
                infowindow.close();
              }
              // now, we want to know which of the markers we're talking about
              var index = markers.indexOf(this);
              infowindow.setContent('<div class="infoheading">' + someArray[index].price + '</div>');
              infowindow.open(map, this);
          });
          infowindow = new google.maps.InfoWindow();
        }
      }
    })
  }
}
google.maps.event.addDomListener(window, 'load', initialize);

单击标记时在信息窗口内显示数组中的内容

Showing content from an Array inside infowindow on marker click

javascript

google-maps

infowindow

geocode

google-geocoding-api