cocos2dx 3.x 触摸事件

Posted 2020-07-10

 单点触摸:

 bool onTouchBegan(cocos2d::Touch *pTouch, cocos2d::Event *pEvent);
 void onTouchMoved(cocos2d::Touch *pTouch, cocos2d::Event *pEvent);
 void onTouchEnded(cocos2d::Touch *pTouch, cocos2d::Event *pEvent);

 

多点触摸:

 void onTouchesBegan(const std::vector<cocos2d::Touch *>& touches, cocos2d::Event *unused_event);
 void onTouchesMoved(const std::vector<cocos2d::Touch *>& touches, cocos2d::Event *unused_event);
 void onTouchesEnded(const std::vector<cocos2d::Touch *>& touches, cocos2d::Event *unused_event);

 

触摸注册:

 EventDispatcher *dispatcher = Director::getInstance()->getEventDispatcher();
 EventListenerTouchOneByOne *listener = EventListenerTouchOneByOne::create();
 listener->onTouchBegan = CC_CALLBACK_2(MyLayer::onTouchBegan,this);
 listener->onTouchMoved = CC_CALLBACK_2(MyLayer::onTouchMoved,this);
 listener->onTouchEnded = CC_CALLBACK_2(MyLayer::onTouchEnded,this);
 dispatcher->addEventListenerWithSceneGraphpriority(listener,this);

 listen->setSwallowTouches(true);

 setSwallowTouches用于设置是否吞没事件，也就是当某个触摸事件回调的时，截断该事件，让它不能继续传递给其他人。同时2个层,上层写了之后,下面的层获取不到点击事件.