使用CCNotficationCenter传递数据 [英] Passing data with CCNotficationCenter

问题描述

我是Cocos2d-X的新手。

I am new to Cocos2d-X.

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

，回调函数为

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

现在我想通过通知发送CCString参数，以便

Now i want to send a CCString parameter via notification so that

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

我该如何做？我需要在通知定义中更改什么？

How can i do this ? What do i need to change in the notification definition ?

推荐答案

注册通知

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

删除通知：

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

发布通知：

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

回呼方法

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

    // XXX: Do something
}

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