如何检测cocos2d中的触摸？

#include "cocos2d.h"

class TouchLayer : public cocos2d::Layer {
public:
    static cocos2d::Scene* createScene();
    virtual bool init();
};

bool TouchLayer::init() {
    if ( !Layer::init() ) {
        return false;
    }

    auto listener = cocos2d::EventListenerTouchOneByOne::create();
    listener->onTouchBegan = CC_CALLBACK_2(TouchLayer::onTouchBegan, this);
    listener->onTouchMoved = CC_CALLBACK_2(TouchLayer::onTouchMoved, this);
    listener->onTouchEnded = CC_CALLBACK_2(TouchLayer::onTouchEnded, this);
    _eventDispatcher->addEventListenerWithSceneGraphPriority(listener, this);

    return true;
}

bool TouchLayer::onTouchBegan(cocos2d::Touch* touch, cocos2d::Event* event) {
    // 处理触摸开始事件
    return true;
}

void TouchLayer::onTouchMoved(cocos2d::Touch* touch, cocos2d::Event* event) {
    // 处理触摸移动事件
}

void TouchLayer::onTouchEnded(cocos2d::Touch* touch, cocos2d::Event* event) {
    // 处理触摸结束事件
}

cocos2d::Scene* TouchLayer::createScene() {
    auto scene = cocos2d::Scene::create();
    auto layer = TouchLayer::create();
    scene->addChild(layer);
    return scene;
}