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
touchListener->setSwallowTouches(true);
将true修改为false后,完全木有问题。
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:
#pragmaonce
#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;
}
*>*>*>*>
本文原创,如转载请注明原文地址。
http://blog.csdn.net/q229827701/article/details/38901213
*>*>