javascript - Here Map - Javascript - 切换到夜间模式

Question

我是 HereMap 的初学者 - 我将它与 Js 和 php + html 一起使用来显示带有状态和气泡的标记。
我想要的是切换到名为 normal.night.grey 的夜间模式，但我真的不知道该怎么做。

我查看了官方支持:

https://developer.here.com/documentation/maps/topics_api/h-service-maptype.html

还有一些例子:

http://heremaps.github.io/examples/explorer.html#map-tiles__base-map-styles-and-modes

但这并不容易理解......

我实际上做了什么:

function addMarkerToGroup(group, coordinate, icon, html) {  
  var marker = new H.map.Marker(coordinate,icon);
  marker.setData(html);
  group.addObject(marker);
}

function addInfoBubble(map) {
  var group = new H.map.Group();
  map.addObject(group);
  group.addEventListener('tap', function (evt) {
    var bubble =  new H.ui.InfoBubble(evt.target.getGeometry(), {
      content: evt.target.getData()
    });
    ui.addBubble(bubble);
  }, false);  

  //
  // Here are some PHP code to generate markers from database
  //

}

// Map initialization code starts below:
var platform = new H.service.Platform({
  apikey: 'myapikey'
});
var defaultLayers = platform.createDefaultLayers();

// initialize a map - this map is centered over Europe
var map = new H.Map(document.getElementById('map'),
  defaultLayers.vector.normal.map,{
  center: new H.geo.Point(23.763987,11.753125),
  zoom: 2.95,
  pixelRatio: window.devicePixelRatio || 1
});

// add a resize listener to make sure that the map occupies the whole container
window.addEventListener('resize', () => map.getViewPort().resize());

// MapEvents enables the event system
var behavior = new H.mapevents.Behavior(new H.mapevents.MapEvents(map));

// create default UI with layers provided by the platform
var ui = H.ui.UI.createDefault(map, defaultLayers);

// Now use the map as required...
addInfoBubble(map);

Answer 1

只需将 defaultLayers.vector.normal.map 更改为 defaultLayers.normal.mapnight

var map = new H.Map(document.getElementById('map'),
  defaultLayers.normal.mapnight, {
  center: new H.geo.Point(23.763987,11.753125),
  zoom: 2.95,
  pixelRatio: window.devicePixelRatio || 1
});

Fiddle