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最近下了最新版本的cocos2dx 3.2做项目，发现一个坑爹的问题。ScrollView 的子控件上有Menu的时候，ScrollView滑动无法响应。

百度了很多资料，要么说不清楚，要么版本很旧的不适合。

于是自己跑去看了下源码。

发现Menu里面有一句

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touchListener->setSwallowTouches(true);

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所以花了几分钟自己写了个继承Menu的类，

修改下方法，然后要使用Menu的地方替换为自己的DBMenu就完美解决问题了。

下面是源码头h文件：

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#pragma  once
#include cocos2d.h
USING_NS_CC;
class DBMenu:public Menu
{
public:
	bool init();

	/** initializes a Menu with a NSArray of MenuItem objects */
	bool initWithArray(const Vector
  
   & arrayOfItems);
	static DBMenu* createWithArray(const Vector
   
    & arrayOfItems); static DBMenu* createWithItem(MenuItem* item); /** creates a Menu with MenuItem objects */ static DBMenu* createWithItems(MenuItem *firstItem, va_list args); static DBMenu* create(MenuItem* item, ...) CC_REQUIRES_NULL_TERMINATION; private: }; 下面是源码cpp文件：
    
#include DBMenu.h
bool DBMenu::init()
{
	return initWithArray(Vector
     
      ());
}

bool DBMenu::initWithArray( const Vector
      
       & arrayOfItems ) { if (Layer::init()) { _enabled = true; // menu in the center of the screen Size s = Director::getInstance()->getWinSize(); this->ignoreAnchorPointForPosition(true); setAnchorPoint(Vec2(0.5f, 0.5f)); this->setContentSize(s); setPosition(Vec2(s.width/2, s.height/2)); int z=0; for (auto& item : arrayOfItems) { this->addChild(item, z); z++; } _selectedItem = nullptr; _state = Menu::State::WAITING; // enable cascade color and opacity on menus setCascadeColorEnabled(true); setCascadeOpacityEnabled(true); auto touchListener = EventListenerTouchOneByOne::create(); touchListener->setSwallowTouches(false); touchListener->onTouchBegan = CC_CALLBACK_2(DBMenu::onTouchBegan, this); touchListener->onTouchMoved = CC_CALLBACK_2(DBMenu::onTouchMoved, this); touchListener->onTouchEnded = CC_CALLBACK_2(DBMenu::onTouchEnded, this); touchListener->onTouchCancelled = CC_CALLBACK_2(DBMenu::onTouchCancelled, this); _eventDispatcher->addEventListenerWithSceneGraphPriority(touchListener, this); return true; } return false; } DBMenu* DBMenu::createWithArray( const Vector
       
        & arrayOfItems ) { auto ret = new DBMenu(); if (ret && ret->initWithArray(arrayOfItems)) { ret->autorelease(); } else { CC_SAFE_DELETE(ret); } return ret; } DBMenu* DBMenu::createWithItem( MenuItem* item ) { return DBMenu::create(item, nullptr); } DBMenu* DBMenu::createWithItems( MenuItem *item, va_list args ) { Vector
        
          items; if( item ) { items.pushBack(item); MenuItem *i = va_arg(args, MenuItem*); while(i) { items.pushBack(i); i = va_arg(args, MenuItem*); } } return DBMenu::createWithArray(items); } DBMenu* DBMenu::create( MenuItem* item, ... ) CC_REQUIRES_NULL_TERMINATION { va_list args; va_start(args,item); DBMenu *ret = DBMenu::createWithItems(item, args); va_end(args); return ret; } 
        
       
      
     
 
    
 
    
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本文原创，如转载请注明原文地址。
 
    
http://blog.csdn.net/q229827701/article/details/38901213
 
    
 
    
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