How to Control Zoom Level Based on Windows Size In Google Maps

问题

I am trying to create a responsive Google Map using Bootstrap.Here is a sample of what I did till now . What I need to do is setting a method to control the map's zoom level based on the windows size.For example as when as user re-size the map the map start zooming out and zooming in on the other way! Can you please let me know if this is possible and how I can do it?

var map;
var panorama;
jQuery(function($) {
$(document).ready(function() {
    var latlng = new google.maps.LatLng(49.241943,-122.889318);
    var myOptions = {
        zoom: 18,
        center: latlng,
        panControl: true,
        zoomControl: true,
        zoomControlOptions: {
                              style: google.maps.ZoomControlStyle.SMALL
                            },
        mapTypeControl: false,
        scaleControl: false,
        streetViewControl: false,
        overviewMapControl: true,
        mapTypeId: google.maps.MapTypeId.ROADMAP,
       };
    map = new google.maps.Map(document.getElementById("map_canvas"), myOptions);
    });
 });

回答1:

You can change the zoom level of the map with this:

var mq = window.matchMedia( "(min-width: 768px)" );
if (mq.matches) {
    map.setZoom(6);
}

来源：https://stackoverflow.com/questions/17000951/how-to-control-zoom-level-based-on-windows-size-in-google-maps