NotificationCenter::getInstance()->addObserver(this,callfuncO_selector(HelloWorld::isSuccess),"signIn",NULL);

voidHelloWorld::isSuccess(Ref* sender){

automsg = (__String*)sender;

CCLOG("msg=%s",msg->getCString());

}

设置事件发送者：

String*str =String::create("OK");

NotificationCenter::getInstance()->postNotification("signIn",str);

注销观察者：

//注销全部

()->removeAllObservers(this);

//注销特定

()->removeObserver);