@Override
public void hierarchyChanged(HierarchyEvent e) {
if ((e.getChangeFlags() & HierarchyEvent.SHOWING_CHANGED) != 0) {
if (isShowing()) {
controller.addControllerListener(this);
update();
} else {
controller.removeControllerListener(this);
}
}
}
/** Adds this StateWaiter as a ControllerListener of the Controller */
private void addAsListener() {
if (!listening) {
controller.addControllerListener(this);
listening = true;
}
}
