单击POI时，在Google地图上获取placeId

Question

I'm using Google Maps JS V3 API on my website. I'm able to use getDetails by placeId when user searches for a place. I would like to do the same when user clicks on a POI. However, I can't seem to find a way to get this placeId when user clicks on a POI instead of using the search box.

I have done research for days, and had no luck of finding anything close.

I came across this feature request, I wonder if there is really no way of getting the placeId by POI clicking: https://code.google.com/p/gmaps-api-issues/issues/detail?id=8113&q=poi&colspec=ID%20Type%20Status%20Introduced%20Fixed%20Summary%20Stars%20ApiType%20Internal

Any help is appreciated, thanks!

Answer 1

Google doesnt provide any documented API method to get place id by clicking on a POI. However, I was able to get the place id using reverse geocoding.

First, we can get coordinates of POI by a method described in this Stack-overflow answer

Second, you can use the coordinates from getPosition() method to call the geocode method to retrieve address components and place id.

Here is a working JS Fiddle

 function initialize() { var mapOptions = { zoom: 14, center: new google.maps.LatLng(38.8862447, -77.02158380000003), mapTypeId: google.maps.MapTypeId.ROADMAP }; map = new google.maps.Map(document.getElementById('map_canvas'), mapOptions); geocoder = new google.maps.Geocoder; //keep a reference to the original setPosition-function var fx = google.maps.InfoWindow.prototype.setPosition; //override the built-in setPosition-method google.maps.InfoWindow.prototype.setPosition = function() { //this property isn't documented, but as it seems //it's only defined for InfoWindows opened on POI's if (this.logAsInternal) { google.maps.event.addListenerOnce(this, 'map_changed', function() { var map = this.getMap(); //the infoWindow will be opened, usually after a click on a POI if (map) { //trigger the click google.maps.event.trigger(map, 'click', { latLng: this.getPosition() }); } }); } //call the original setPosition-method fx.apply(this, arguments); }; google.maps.event.addListener(map, 'click', function(e) { //alert('clicked @' + e.latLng.toString()) geocoder.geocode({ 'location': e.latLng }, function(results, status) { if (status === google.maps.GeocoderStatus.OK) { if (results[0]) { alert('place id: ' + results[0].place_id); } else { console.log('No results found'); } } else { console.log('Geocoder failed due to: ' + status); } }); }); } google.maps.event.addDomListener(window, 'load', initialize); 

 html, body, #map_canvas { margin: 0; height: 100%; } 

 <div id="map_canvas"></div> <script src="https://maps.googleapis.com/maps/api/js?callback=initialize" async defer></script> 

Answer 2

As of 2017-12 this is now supported. Here's the example https://developers.google.com/maps/documentation/javascript/examples/event-poi