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事件監聽

 

    auto listen = EventListenerTouchOneByOne::create();    listen->setSwallowTouches(true);    listen->onTouchBegan = [](Touch* touch,Event* event){        CCLog("onTouchBegan");        return true;    };    listen->onTouchMoved = [](Touch* touch,Event* event){        CCLog("onTouchMoved");    };    listen->onTouchEnded = [](Touch* touch,Event* event){        CCLog("onTouchEnded");    };        Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listen, this);

 

同一個事件監聽器可以綁定多個對象，但必須使用事件監聽器的複本，如：

Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listen, sprite);Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraphPriority(listen->clone(), ttf);

 

 Director::getInstance()->getEventDispatcher() 也可以用 _eventDispatcher 代替。