not really sure why you'd need to set the focus on the map - unless you have some input element on it, or you need it to be able to respond to some keys / buttons without the user having to tap on the map.
 
 A few ways to set the focus are: 
 One of them may work 
 
 code 
 $('#yourGmapID').focus(); 
 /code
 
 code 
 // Set focus on the first element of the class 
 $('.yourGmapClass:first').focus(); 
 /code
 
 code 
 var mymap = Apperyio('gmap_name'); 
 mymap.focus(); 
 /code
 
 code 
 Appery("googlemap_1").focus(); 
 // OR 
 var myMap = jQuery('[name="googlemap_1"]'); 
 myMap.focus(); 
 /code