cocos2d-x 3.x 触摸事件

Posted 2020-07-23 kingBook

HelloWorldScene.h

　　 bool touchBegan(cocos2d::Touch*touch, cocos2d::Event*event);//触摸开始，返回bool类型
    void touchMoved(cocos2d::Touch*touch, cocos2d::Event*event);
    void touchEnded(cocos2d::Touch*touch, cocos2d::Event*event);
    void touchCancelled(cocos2d::Touch*touch, cocos2d::Event*event);

HelloWorldScene.cpp

　　 EventListenerTouchOneByOne*listener=EventListenerTouchOneByOne::create();
    listener->onTouchBegan=CC_CALLBACK_2(HelloWorld::touchBegan,this);//触摸开始,必须添加，不使用也要添加，否则运行不通过
    listener->onTouchMoved=CC_CALLBACK_2(HelloWorld::touchMoved,this);//触摸移动
    listener->onTouchEnded=CC_CALLBACK_2(HelloWorld::touchEnded,this);//触摸中断，一般是系统层级的消息，如来电话，触摸事件就会被打断 
    listener->onTouchCancelled=CC_CALLBACK_2(HelloWorld::touchCancelled,this);
    _eventDispatcher->addEventListenerWithSceneGraphpriority(listener,this);




bool HelloWorld::touchBegan(Touch*touch, Event*event){
    Vec2 pos=touch->getLocation();
    log("touchBegan x:%f,y:%f",pos.x,pos.y);
    return true;//返回false时，触摸移动、触摸结束不会触发
}

void HelloWorld::touchMoved(Touch*touch, Event*event){
    Vec2 pos=touch->getLocation();
    log("touchMoved x:%f,y:%f",pos.x,pos.y);
}

void HelloWorld::touchEnded(Touch*touch, Event*event){
    Vec2 pos=touch->getLocation();
    log("touchEnded x:%f,y:%f",pos.x,pos.y);
}

void HelloWorld::touchCancelled(Touch*touch, Event*event){
    Vec2 pos=touch->getLocation();
    log("touchCancelled x:%f,y:%f",pos.x,pos.y);
}