javascript - Recenter a Google map after container changed width

Question

I have a google map set with the Javascript API V3. It's displayed in a div with a dynamic width, as a content pane slides up when we click on a marker.

Everything works fine, but one thing: When the pane slides up, the width of the map is changed, and so the center is displaced to the right (the pane is on the left). It is really inconvienient especially for small resolutions, where you can't even see the center after the pane is open.

I've tried the 'resize' trigger, but it doesn't seem to work... Any ideas ?

Thanks a lot !

Answer 1

Calling resize by it self will not acheive what you need.

What you need to do is first (before a resize occurs) get the current center of the map

var currCenter = map.getCenter();

Then you need to do something like the following, after your div is resized.

google.maps.event.trigger(map, 'resize');
map.setCenter(currCenter);

Should do the trick

UPDATE 2018-05-22

With a new renderer release in version 3.32 of Maps JavaScript API the resize event is no longer a part of Map class.

The documentation states

When the map is resized, the map center is fixed

• The full-screen control now preserves center.

• There is no longer any need to trigger the resize event manually.

source: https://developers.google.com/maps/documentation/javascript/new-renderer

google.maps.event.trigger(map, "resize"); doesn't have any effect starting from version 3.32