通過CCNotficationCenter傳遞數據

Question

我是Cocos2d-X的新手。

CCNotificationCenter::sharedNotificationCenter()->addObserver(
      this, 
      callfuncO_selector(test::printSomething), 
      "hello", 
      NULL); 

和回調函數是

void PingoScreen::printSomething(CCObject *pObject) { 
    CCString * myData = (CCString*)pObject; 
    CCLog("The data posted is %s",myData); 
} 

現在我想通過通知發送CCString參數，以便

CCNotificationCenter::sharedNotificationCenter()->postNotification("hello", 
       ccs(notificationData)); 

我怎樣才能做到這一點？通知定義中需要更改什麼？

Answer 1

註冊通知

CCNotificationCenter::sharedNotificationCenter()->addObserver(this, callfuncO_selector(GameScene::doSomething), "eventNotification", NULL); 

移除通知

CCNotificationCenter::sharedNotificationCenter()->removeObserver(this, "eventNotification"); 

郵政通知

CCNotificationCenter::sharedNotificationCenter()->postNotification("eventNotification", myString); 

回調方法

void GameScene::doSomething(CCObject *pObject) { 
    CCString *myString = (CCString*)pObject; 

    // XXX: Do something 
}