libgdx Table can't get ChangeListener for a click to fire? -

i have table added stage, , can't click listener fire it:

table table = new table(); table.setx(0); table.sety(0); table.setwidth(300); table.setheight(300); table.addlistener(new changelistener() {     @override     public void changed(changeevent event, actor actor) {         system.out.println("click");     } });  stage.addactor(table); 

i've set background 9 patch on table, , it's rendering fine. clicking has no effect. if add label or button table, set same changelistener widgets, listener fires fine.

is there special handling table needs work?

thanks

--------- update -------------------

the way work using eventlistener block interaction on table instance:

table.addlistener(new eventlistener() {     @override     public boolean handle(event event) {         return true;     } }); 

all events fire expected here.

i tried setting table touchable, still changelistener not fire:

table.settouchable(touchable.enabled); table.setlistener(....); 

so guess i'm going stick eventlistener approach.

the table in libgdx not touchable default, in constructor settouchable(touchable.childrenonly);(take @ source) called, means, actor (the `table´) won't input events, children (look @ javadoc).

so enable input events table , not children, need call settouchable(touchable.enabled).

i hope solves problem.