A button fires an onNavigate event when the left, right, up and down arrows are pressed, so listen to this event as follows:
CODE
var btn = new KONtx.control.Buttton({
events: {
onNavigate: this._handleNavEvent.bindTo(this)
}
}).appendTo( this.container );
Then in the event handler, check the event for the direction you are interested in.
CODE
function _handleNavEvent(event) {
switch (event.payload.direction) {
case 'left':
// do something
break;
case 'right':
// do something else
break;
}
}
