Center Google Maps (V3) on browser resize (responsive)

Some good examples on w3schools.com. I used the following and it works great.

google.maps.event.addDomListener(window, 'resize', function() {
  map.panTo(myLatlng);
});

http://www.w3schools.com/googleapi/google_maps_events.asp

Detect the browser resize event, resizes the Google Map while preserving the center point:

var map = ...; // your map initialisation code

google.maps.event.addDomListener(window, "resize", function() {
    var center = map.getCenter();
    google.maps.event.trigger(map, "resize");
    map.setCenter(center); 
});

You can use the same code in other event handlers when resizing the google map via other means (e.g. with a jQuery-UI 'resizable' control).

Source: http://hsmoore.com/blog/keep-google-map-v3-centered-when-browser-is-resized/ credit to @smftre for the link.

Note: This code was linked in @smftre's comment on the accepted answer. I think it's worth adding it as its own answer since it is really superior to the accepted answer. It eliminates the need of a global variable to track the center point and an event handler to update that variable.

You need to have an event listener for when the window resizes. This worked for me (put it in your initialize function):

google.maps.event.addDomListener(window, 'resize', function() {
    map.setCenter(center);
});