谷歌地图API地点搜索获取搜索结果的数量

Google Maps API Places Search get number of search results

本文关键字：搜索结果 获取 搜索 API 谷歌地图      更新时间：2023-09-26

我使用Google Maps API的Places Search实现了一个示例。我想获取我正在获取的结果数。谷歌地图API新手。我该如何做到这一点？

jsFiddle

JS:

var map;
var infowindow;
function initialize() {
  var pyrmont = new google.maps.LatLng(19.107567, 72.8335);
  map = new google.maps.Map(document.getElementById('map-canvas'), {
    center: pyrmont,
    zoom: 15
  });
  var request = {
    location: pyrmont,
    radius: 500,
    types: ['hospital']
  };
  infowindow = new google.maps.InfoWindow();
  var service = new google.maps.places.PlacesService(map);
  service.nearbySearch(request, callback);
}
function callback(results, status) {
  if (status == google.maps.places.PlacesServiceStatus.OK) {
    for (var i = 0; i < results.length; i++) {
      createMarker(results[i]);
    }
  }
}
function createMarker(place) {
  var placeLoc = place.geometry.location;
  var marker = new google.maps.Marker({
    map: map,
    position: place.geometry.location
  });
  google.maps.event.addListener(marker, 'click', function() {
    infowindow.setContent(place.name);
    infowindow.open(map, this);
  });
}
google.maps.event.addDomListener(window, 'load', initialize);

将回调替换为：

function callback(results, status) {
  if (status == google.maps.places.PlacesServiceStatus.OK) {
    // Just count the number of results passed to your callback
    var numResults = results.length;
    for (var i = 0; i < results.length; i++) {
      createMarker(results[i]);
    }
  }
}
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