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啟用 Google Maps JavaScript API

為協助您開始,我們將先引導您使用「Google 開發人員控制台」來執行一些動作:

  1. 建立或選擇專案
  2. 啟用 Google Maps JavaScript API 與相關服務
  3. 建立適當的金鑰
繼續

Data Layer: Event Handling

Read the documentation or view this example full screen.

var map;
function initMap() {
  map = new google.maps.Map(document.getElementById('map'), {
    zoom: 4,
    center: {lat: -28, lng: 137}
  });

  // Load GeoJSON.
  map.data.loadGeoJson('https://storage.googleapis.com/maps-devrel/google.json');

  // Add some style.
  map.data.setStyle(function(feature) {
    return /** @type {google.maps.Data.StyleOptions} */({
      fillColor: feature.getProperty('color'),
      strokeWeight: 1
    });
  });

  // Set mouseover event for each feature.
  map.data.addListener('mouseover', function(event) {
    document.getElementById('info-box').textContent =
        event.feature.getProperty('letter');
  });
}
<div id="map"></div>
<div id="info-box">?</div>
/* Always set the map height explicitly to define the size of the div
 * element that contains the map. */
#map {
  height: 100%;
}
/* Optional: Makes the sample page fill the window. */
html, body {
  height: 100%;
  margin: 0;
  padding: 0;
}
#info-box {
  background-color: white;
  border: 1px solid black;
  bottom: 30px;
  height: 20px;
  padding: 10px;
  position: absolute;
  left: 30px;
}
 <!-- Replace the value of the key parameter with your own API key. -->
<script async defer
src="https://maps.googleapis.com/maps/api/js?key=AIzaSyCkUOdZ5y7hMm0yrcCQoCvLwzdM6M8s5qk&callback=initMap">
</script>

自己試試看

將游標放在程式碼區塊右上方,以複製程式碼或在 JSFiddle 中將它開啟。

<!DOCTYPE html>
<html>
  <head>
    <title>Data Layer: Event Handling</title>
    <meta name="viewport" content="initial-scale=1.0">
    <meta charset="utf-8">
    <style>
      /* Always set the map height explicitly to define the size of the div
       * element that contains the map. */
      #map {
        height: 100%;
      }
      /* Optional: Makes the sample page fill the window. */
      html, body {
        height: 100%;
        margin: 0;
        padding: 0;
      }
      #info-box {
        background-color: white;
        border: 1px solid black;
        bottom: 30px;
        height: 20px;
        padding: 10px;
        position: absolute;
        left: 30px;
      }
    </style>
  </head>
  <body>
    <div id="map"></div>
    <div id="info-box">?</div>
    <script>

      var map;
      function initMap() {
        map = new google.maps.Map(document.getElementById('map'), {
          zoom: 4,
          center: {lat: -28, lng: 137}
        });

        // Load GeoJSON.
        map.data.loadGeoJson('https://storage.googleapis.com/maps-devrel/google.json');

        // Add some style.
        map.data.setStyle(function(feature) {
          return /** @type {google.maps.Data.StyleOptions} */({
            fillColor: feature.getProperty('color'),
            strokeWeight: 1
          });
        });

        // Set mouseover event for each feature.
        map.data.addListener('mouseover', function(event) {
          document.getElementById('info-box').textContent =
              event.feature.getProperty('letter');
        });
      }
    </script>
    <script async defer
    src="https://maps.googleapis.com/maps/api/js?key=YOUR_API_KEY&callback=initMap">
    </script>
  </body>
</html>

傳送您對下列選項的寶貴意見...

這個網頁
Google Maps JavaScript API
Google Maps JavaScript API
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