How to detect enter and exit streetView in Google Maps API v3

问题

Is there a way to detect when a user enters and exits StreetView in Google Maps under API v3?

I want to trigger an existing 'Hide Menu' function when the user enters StreetView (as the menu isn't relevant) and then re-show the menu when they exit.

回答1:

Observe the visible_changed-event of the streetView, the visible-property will be true or false (open or closed)

      function initialize() {
        var mapOptions = {
          center: new google.maps.LatLng(52.5498783, 13.425209),
          zoom: 8
        };
        var map = new google.maps.Map(document.getElementById("map-canvas"),
            mapOptions);
        google.maps.event.addListener(map.getStreetView(),'visible_changed',function(){
           alert('streetview is ' +(this.getVisible()?'open':'closed'));
        });
      }
      google.maps.event.addDomListener(window, 'load', initialize);

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

<script src="https://maps.googleapis.com/maps/api/js?v=3&.js"></script>
<div id="map-canvas"></div>

回答2:

You have to use the visible_changed event listener and also add a doAlert() function. This would enable the street view to make an alert on entry for the street view and also while exitting the street view.

来源：https://stackoverflow.com/questions/28784610/how-to-detect-enter-and-exit-streetview-in-google-maps-api-v3