Question

我有google map api的示例代码来搜索位置。我可以提供输入但无法在浏览器上显示地图。我在https://developers.google.com/maps/documentation/javascript/examples/directions-panel和其他代码中尝试了各种其他代码，但所有代码都有同样的问题。我无法将问题弄清楚。我试图以javascript格式映射CSS代码。

如果此代码出现问题，请帮我解决：

<!DOCTYPE html>
<html>
  <head>
    <meta name="viewport" content="initial-scale=1.0, user-scalable=no">
    <meta charset="utf-8">
    <link href="/maps/documentation/javascript/examples/default.css"
        rel="stylesheet">
    <title>Places search box</title>
    <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false&libraries=places"></script>
    <script>
function initialize() {
  var map = new google.maps.Map(document.getElementById('map-canvas'), {
    mapTypeId: google.maps.MapTypeId.ROADMAP
  });
  var defaultBounds = new google.maps.LatLngBounds(
      new google.maps.LatLng(-33.8902, 151.1759),
      new google.maps.LatLng(-33.8474, 151.2631));
  map.fitBounds(defaultBounds);

  var input =(document.getElementById('target'));
  var searchBox = new google.maps.places.SearchBox(input);
  var markers = [];

  google.maps.event.addListener(searchBox, 'places_changed', function() {
    var places = searchBox.getPlaces();

    for (var i = 0, marker; marker = markers[i]; i++) {
      marker.setMap(null);
    }

    markers = [];
    var bounds = new google.maps.LatLngBounds();
    for (var i = 0, place; place = places[i]; i++) {
      var image = {
        url: place.icon,
        size: new google.maps.Size(71, 71),
        origin: new google.maps.Point(0, 0),
        anchor: new google.maps.Point(17, 34),
        scaledSize: new google.maps.Size(25, 25)
      };

      var marker = new google.maps.Marker({
        map: map,
        icon: image,
        title: place.name,
        position: place.geometry.location
      });

      markers.push(marker);

      bounds.extend(place.geometry.location);
    }

    map.fitBounds(bounds);
  });

  google.maps.event.addListener(map, 'bounds_changed', function() {
    var bounds = map.getBounds();
    searchBox.setBounds(bounds);
  });
}

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

    </script>
    <style>
      #target {
        width: 345px;
      }
    </style>
  </head>
  <body>
    <div id="panel">
      <input id="target" type="text" placeholder="Search Box">
    </div>
    <div id="map-canvas"></div>
  </body>
</html>

Answer 1

您可能还想在地图画布容器中添加一些样式，因为它会在页面加载时折叠;

  #map-canvas {
    margin: 0;
    padding: 0;
    height: 100%;
  }

Answer 2

创建地图对象时出现错误，只提供类型，但是省略了缩放和中心选项，两者都是必需的，你必须这样做：

var mapOptions = {
    zoom: 8,
    center: new google.maps.LatLng(-34.397, 150.644),
    mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);

Google Maps Documentation

如何在谷歌地图API v3中显示地图

2 个答案: