我想用cocos2d-x的最新版本开发一个简单的应用，但是不能正常运行touch功能。这是我的classes：
class GameLayer : public cocos2d::Layer{public: static cocos2d::Layer* createLayer(); void update(float dt); virtual bool init(); CREATE_FUNC(GameLayer);private: bool onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event); void onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event); void onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event);};cocos2d::Layer* GameLayer::createLayer(){ GameLayer *layer = GameLayer::create(); return layer;}bool GameLayer::init(){ if (!cocos2d::Layer::init()) { return false; } this->schedule(schedule_selector(GameLayer::update)); this->setTouchEnabled(true); return true;}void GameLayer::update(float dt){}bool GameLayer::onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event){ cocos2d::log("You touched %f, %f", touch->getLocationInView().x, touch->getLocationInView().y); return true;}void GameLayer::onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event){}void GameLayer::onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event){}当我启动setTouchEnabled命令时，会出现_running的内部标识，提醒我出现错误，因此也就不能正常实现touch事件。但我不知道为什么会出现这种情况，是我的调用顺序出现问题了吗？
解决方案
答：nomannasim
（最佳答案）
如今，cocos2d-x正在全面完善函数库（library），包括touch registration和propagation在内的很多内容都发生了变化，下面是它的工作原理：
GameLayer.h
class GameLayer : public cocos2d::Layer{public: static cocos2d::Layer* createLayer(); void update(float dt); virtual bool init(); CREATE_FUNC(GameLayer);private: virtual void onEnter(); virtual void onExit(); bool onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event); void onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event); void onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event);};GameLayer.cpp
cocos2d::Layer* GameLayer::createLayer(){ GameLayer *layer = GameLayer::create(); return layer;}bool GameLayer::init(){ if (!cocos2d::Layer::init()) { return false; } this->schedule(schedule_selector(GameLayer::update)); return true;}void GameLayer::onEnter(){ Layer::onEnter(); // Register Touch Event auto dispatcher = Director::getInstance()->getEventDispatcher(); auto listener = EventListenerTouchOneByOne::create(); listener->onTouchBegan = CC_CALLBACK_2(GameLayer::onTouchBegan, this); listener->onTouchMoved = CC_CALLBACK_2(GameLayer::onTouchMoved, this); listener->onTouchEnded = CC_CALLBACK_2(GameLayer::onTouchEnded, this); dispatcher->addEventListenerWithSceneGraphPriority(listener, this);}void GameLayer::onExit(){ // You don't need to unregister listeners here as new API // removes all linked listeners automatically in CCNode's destructor // which is the base class for all cocos2d DRAWING classes Layer::onExit();}void GameLayer::update(float dt){}bool GameLayer::onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event){ cocos2d::log("You touched %f, %f", touch->getLocationInView().x, touch->getLocationInView().y); return true;}void GameLayer::onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event){}void GameLayer::onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event){}