CCScrollView的多点触控缩放问题

Cocos2d-x
#1

cocos2dx-2.2.0版本我看了一下 代码是

bool CCScrollView::ccTouchBegan(CCTouch* touch, CCEvent* event)
{
    if (!this->isVisible())
    {
        return false;
    }
    
    CCRect frame = getViewRect();

    //dispatcher does not know about clipping. reject touches outside visible bounds.
    if (m_pTouches->count() > 2 ||
        m_bTouchMoved          ||
        !frame.containsPoint(m_pContainer->convertToWorldSpace(m_pContainer->convertTouchToNodeSpace(touch))))
    {
        return false;
    }

    if (!m_pTouches->containsObject(touch))
    {
        m_pTouches->addObject(touch);
    }
    CCLog("m_pTouches->count():%d", m_pTouches->count());
    if (m_pTouches->count() == 1)
    { // scrolling
        m_tTouchPoint     = this->convertTouchToNodeSpace(touch);
        m_bTouchMoved     = false;
        m_bDragging     = true; //dragging started
        m_tScrollDistance = ccp(0.0f, 0.0f);
        m_fTouchLength    = 0.0f;
    }
    else if (m_pTouches->count() == 2)
    {
        m_tTouchPoint  = ccpMidpoint(this->convertTouchToNodeSpace((CCTouch*)m_pTouches->objectAtIndex(0)),
                                   this->convertTouchToNodeSpace((CCTouch*)m_pTouches->objectAtIndex(1)));
        m_fTouchLength = ccpDistance(m_pContainer->convertTouchToNodeSpace((CCTouch*)m_pTouches->objectAtIndex(0)),
                                   m_pContainer->convertTouchToNodeSpace((CCTouch*)m_pTouches->objectAtIndex(1)));
        m_bDragging  = false;
    } 
    return true;
}



```

问题 是多点触控 不调用这个方法啊， ccTouchBegan 是单点触控啊，  ccTouchedBegan才是多点触控啊，  这个代码怎么可能走到多点触控呢， 实际测试m_pTouches->count()一直是1啊
#2

AppController.mm 中加入：

;

打开iOS multiple touch.