最后将监听器加入事件分发器中，

Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraPHPriority(startListener,start);

@H_301_29@这样就ok了，另一个退出按钮的实现也按照同样的方法。

@H_301_29@

@H_301_29@

@H_301_29@这个是一般的方法，但是缺点比较明显，就是添加了许多东西，接下来我要介绍另一种方法，我将其封装到自定义到精灵中如下：

@H_301_29@

CustomSprite.h头文件

//

// CustomSprite.h

// DontSaveMe

// Created by Mr Gan on 12/23/14.

//

#ifndef __DontSaveMe__CustomSprite__

#define __DontSaveMe__CustomSprite__

#include "cocos2d.h"

#include <string>

#include <stdio.h>

#include <functional>

USING_NS_CC;

@H_301_29@class CustomSprite : public Sprite

@H_301_29@{

public:

@H_301_29@ virtual ~CustomSprite(){}

@H_301_29@ static CustomSprite* createWithPath(const std::string &path);

@H_301_29@ std::function<bool(Touch*,Event*)> onTouchBegan;

@H_301_29@ std::function<void(Touch*,Event*)> onTouchMoved;

@H_301_29@ std::function<void(Touch*,Event*)> onTouchEnded;

@H_301_29@ std::function<void(Touch*,Event*)> onTouchCancelled;

protected:

@H_301_29@ CustomSprite():onTouchBegan(nullptr),onTouchEnded(nullptr) {}

@H_301_29@ virtual bool initWithFile(const std::string& filename) override;

};

#endif /* defined(__DontSaveMe__CustomSprite__) */

// CustomSprite.cpp

//

#include "CustomSprite.h"

@H_301_29@CustomSprite *CustomSprite::createWithPath(const std::string &path)

@H_301_29@{

@H_301_29@ auto sprite = new CustomSprite();

@H_301_29@ if(sprite && sprite->initWithFile(path))

@H_301_29@ {

@H_301_29@ sprite->autorelease();

@H_301_29@ return sprite;

@H_301_29@ }

@H_301_29@ else

@H_301_29@ {

@H_301_29@ delete sprite;

@H_301_29@ sprite = nullptr;

return nullptr;

@H_301_29@ }

@H_301_29@}

@H_301_29@bool CustomSprite::initWithFile(const std::string& filename)

@H_301_29@{

@H_301_29@ if(!Sprite::initWithFile(filename))

@H_301_29@ {

return false;

@H_301_29@ }

auto listener = cocos2d::EventListenerTouchOneByOne::create();

@H_301_29@ listener->setSwallowTouches(true);

@H_301_29@ listener->onTouchBegan = [&](cocos2d::Touch* touch,cocos2d::Event* event)

@H_301_29@ {

@H_301_29@ cocos2d::Vec2 p = touch->getLocation();

@H_301_29@ cocos2d::Rect rect = this->getBoundingBox();

@H_301_29@ if(rect.containsPoint(p))

@H_301_29@ {

@H_301_29@ if(onTouchBegan)

@H_301_29@ onTouchBegan(touch,event);

return true; // to indicate that we have consumed it.

@H_301_29@ }

301_29@ };

@H_301_29@ listener->onTouchEnded = [=](cocos2d::Touch* touch,cocos2d::Event* event)

@H_301_29@ {

if(onTouchEnded)

@H_301_29@ onTouchEnded(touch,event);

@H_301_29@ };

cocos2d::Director::getInstance()->getEventDispatcher()->addEventListenerWithSceneGraPHPriority(listener,this);

return true;

@H_301_29@}

@H_301_29@

@H_301_29@怎么用呢很简单如下：

@H_301_29@

@H_301_29@ auto start = CustomSprite::createWithPath("StartButton.jpg");

@H_301_29@ start->setPosition(Vec2(start->getContentSize().width / 2 + 20,visibleSize.height / 2));

start->onTouchEnded = CC_CALLBACK_2(StartLayer::onBeginTouchStartButton,this);

@H_301_29@ addChild(start);

@H_301_29@ auto exit = CustomSprite::createWithPath("ExitButton.jpg");

@H_301_29@ exit->setPosition(Vec2(start->getPositionX(),start->getPositionY() - 70));

exit->onTouchEnded = CC_CALLBACK_2(StartLayer::onBeginTouchExitButton,this);

@H_301_29@ addChild(exit);

@H_301_29@

@H_301_29@在定义onBeginTouchStartButton，和onBeginTouchExitButton

@H_301_29@

@H_301_29@void StartLayer::onBeginTouchStartButton(Touch* touch,Event* event)

@H_301_29@{

@H_301_29@ StartGame(nullptr);

@H_301_29@}

@H_301_29@void StartLayer::onBeginTouchExitButton(Touch* touch,Event* event)

@H_301_29@{

@H_301_29@ ExitGame);

@H_301_29@}