由於cocos2d-x中的優先順序小的，先響應觸控事件，這是，我們只需要設定新新增的cclayer層的優先順序即可，但由於ccmenu的優先順序較高，所以，很有可能透過我們新增的觸控層，響應之前的繫結的button事件，而如果我們設定此觸控層優先順序比button的低時，又導致在這層新增的button按鈕的觸控事件不能觸發，導致本層應該觸控的事件也不能響應，這樣也達不到我們理想的效果：彈出一個層，遮蔽後面的事件，在當層可以有一些按鈕，讓我們進行不同的選擇，比如確定，or 取消。

         自從cocos2d-x2.0版本後，添加了一個CCControlButton，這個優先順序為0，比預設的button高，因此，我們可以在當前層新增CCControlButton，在彈出的層設定layer的優先順序比0小，這樣，在彈出的層新增menu就能夠響應，也不會影響後面的事件。當然，由於CCControlButton的優先順序是可以自動設定的，所以，我們也可以設定彈出的層為-128（或者更小），然後設定CCControlButton的優先順序更小就可以了。

      具體程式碼如下：

BlockTouchLayer *block = BlockTouchLayer::create();
this->addChild(block);

#ifndef __test__BlockTouchLayer__
#define __test__BlockTouchLayer__

#include <iostream>
#include "cocos2d.h"
#include "cocos-ext.h"
using namespace cocos2d;
class BlockTouchLayer :public CCLayerColor
{
public:
    virtual bool init();
    void initData();
    
    virtual void registerWithTouchDispatcher();  //重寫觸控事件，阻止後端事件響應
    virtual bool ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    virtual void ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    virtual void ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent);
    
    void callBack(CCObject *pSender,CCControlEvent event);
    
    CREATE_FUNC(BlockTouchLayer);
    
};
#endif
 

#include "BlockTouchLayer.h"
USING_NS_CC_EXT;

bool BlockTouchLayer::init()
{
    ccColor4B color = {100,0,0,125};  //設定面板顏色及透明度
    if (!CCLayerColor::initWithColor(color))
    {
        return false;
    }
    initData();
    setTouchEnabled(true);   //開啟觸控事件
    return true;
}
void BlockTouchLayer::initData()
{
    CCSize winsize = CCDirector::sharedDirector()->getWinSize();
    CCSprite *sp = CCSprite::create("Icon.png");
    this->addChild(sp);
    sp->setPosition(ccp(winsize.width/2,winsize.height/2));
    
    CCSpriteFrameCache *cache = CCSpriteFrameCache::sharedSpriteFrameCache();
    cache->addSpriteFramesWithFile("load.plist", "load.png");
    
    CCSprite *sprite1 = CCSprite::createWithSpriteFrameName("loading1.png");
    sprite1->setPosition(ccp(winsize.width/2, winsize.height/2));
    //this->addChild(sprite1);
    
    CCSpriteBatchNode *batchNode = CCSpriteBatchNode::create("load.png");
    batchNode->addChild(sprite1);
    this->addChild(batchNode);   // 可以起到一定的優化作用，最好不要直接新增精靈
    
    CCArray *spriteArray = CCArray::create();
    char str[100] = {0};
    for (int i=1; i <= 14; i++)
    {
        sprintf(str, "loading%d.png", i);
        CCSpriteFrame *frame = cache->spriteFrameByName(str);
        spriteArray->addObject(frame);
    }
    CCAnimation *animation = CCAnimation::createWithSpriteFrames(spriteArray,0.5);
    sprite1->runAction(CCRepeatForever::create(CCAnimate::create(animation)));
    
    cocos2d::extension::CCScale9Sprite *sprite9 = cocos2d::extension::CCScale9Sprite::create("btn_blackblue.png");
    CCLabelTTF *label = CCLabelTTF::create("click me", "", 22);
    cocos2d::extension::CCControlButton *controlButton = cocos2d::extension::CCControlButton::create(label, sprite9);
    controlButton->addTargetWithActionForControlEvents(this, cccontrol_selector(BlockTouchLayer::callBack), cocos2d::extension::CCControlEventTouchDown);
    this->addChild(controlButton);
    controlButton->setPosition(ccp(winsize.width/3, winsize.height/2));
    controlButton->setTouchPriority(-200);   //設定CCControlButton的優先順序
    //controlButton->setZoomOnTouchDown(true);
    
    
    
}
void BlockTouchLayer::callBack(cocos2d::CCObject *pSender,CCControlEvent event)
{
    //CCNotificationCenter::sharedNotificationCenter()->postNotification("click",this);
    BlockTouchLayer *tmplayer = (BlockTouchLayer *)((CCMenu *)(pSender))->getParent();
    tmplayer->removeFromParentAndCleanup(true);    //點選按鈕後，移除彈出的面板
}
void BlockTouchLayer::registerWithTouchDispatcher()
{
    CCDirector::sharedDirector()->getTouchDispatcher()->addTargetedDelegate(this, -128, true);  //註冊並設定當前面板觸控的優先順序
}
bool BlockTouchLayer::ccTouchBegan(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
    return true;       // 吞噬掉後面的響應
}
void BlockTouchLayer::ccTouchEnded(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
    
}
void BlockTouchLayer::ccTouchMoved(cocos2d::CCTouch *pTouch, cocos2d::CCEvent *pEvent)
{
    
}
 

第一張圖片點選右下角的退出按鈕，沒有反應，點選click me按鈕，取消當前層顯示原來的hello world層，此時退出按鈕有效。