导航:[首页]->[game]->[Cocos2d-x CCTableView的两个bug]

##隐藏后再显示无法处理事件

在CCTableView的事件中,隐藏CCTableView,由于此时ccTouchEnded尚未被调用。当隐藏后执行到这里时,被下面的判断给拦截。导致收尾工作没执行。

解决办法是去掉下面两个判断,只需要保留ccTouchBegan的判断。

void CCTableView::ccTouchEnded(CCTouch *pTouch, CCEvent *pEvent)
{
	if (!this->isVisible()) {
		return;
	}
void CCScrollView::ccTouchEnded(CCTouch* touch, CCEvent* event)
{
	if (!this->isVisible())
	{
		return;
	}

##动态插入删除元素堆栈

void CCTableView::insertCellAtIndex(unsigned  int idx, float insertDelayTime)
{
	if (idx == CC_INVALID_INDEX)
	{
		return;
	}

	unsigned int uCountOfItems = m_pDataSource->numberOfCellsInTableView(this);
	if (0 == uCountOfItems || idx > uCountOfItems-1)
	{
		return;
	}

	CCTableViewCell* cell = NULL;
	int newIdx = 0;

	cell = (CCTableViewCell*)m_pCellsUsed->objectWithObjectID(idx);
	m_pIndices->clear();
	if (cell)
	{
		newIdx = m_pCellsUsed->indexOfSortedObject(cell);

		for (int i = 0; i < (int)newIdx; ++i) {
			cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(i);
			m_pIndices->insert(cell->getIdx());
		}

		for (unsigned int i=newIdx; i<m_pCellsUsed->count(); i++)
		{
			cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(i);
			int ni = cell->getIdx()+1;
			this->_setIndexForCell(ni, cell, true);
			m_pIndices->insert(ni);
		}
	}

	// [m_pIndices shiftIndexesStartingAtIndex:idx by:1];
	if (insertDelayTime > 0) {
		m_indexToInsert = idx;
		CCDelayTime* delay = CCDelayTime::create(0.2f);
		CCCallFunc* call = CCCallFunc::create(this, callfunc_selector(CCTableView::delayInsertCell));
		CCSequence* seq = CCSequence::createWithTwoActions(delay, call);
		this->runAction(seq);
	} else {
		//insert a new cell
		cell = m_pDataSource->tableCellAtIndex(this, idx);
		this->_setIndexForCell(idx, cell, false);
		this->_addCellIfNecessary(cell);

		this->_updateCellPositions();
		this->_updateContentSize();
	}
}

void CCTableView::removeCellAtIndex(unsigned int idx)
{
	if (idx == CC_INVALID_INDEX)
	{
		return;
	}

	unsigned int uCountOfItems = m_pDataSource->numberOfCellsInTableView(this);
	if (0 == uCountOfItems || idx > uCountOfItems-1)
	{
		return;
	}

	unsigned int newIdx = 0;

	CCTableViewCell* cell = this->cellAtIndex(idx);
	if (!cell)
	{
		return;
	}

	newIdx = m_pCellsUsed->indexOfSortedObject(cell);

	//remove first
	this->_moveCellOutOfSight(cell);

   
	this->_updateCellPositions();
	// [m_pIndices shiftIndexesStartingAtIndex:idx+1 by:-1];

	// 重新修改indices的值
	m_pIndices->clear();
	for (int i = 0; i < (int)newIdx; ++i) {
		cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(i);
		m_pIndices->insert(cell->getIdx());
	}

	for (int i=(int)m_pCellsUsed->count()-1; i >= (int)newIdx; --i)
	{
		cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(i);
		int ni = cell->getIdx()-1;
		this->_setIndexForCell(ni, cell, true);
		m_pIndices->insert(ni);
	}

	// 补充最后一个元素
	if (m_pCellsUsed->count() > 0) {
		cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(m_pCellsUsed->count() - 1);
		int index = cell->getIdx() + 1;
		if (index < (int)m_pDataSource->numberOfCellsInTableView(this)) {
			// 超出显示范围,更新
			this->updateCellAtIndex(index);

			// 更新完毕,重新取最后一个cell
			cell = (CCTableViewCell*)m_pCellsUsed->objectAtIndex(m_pCellsUsed->count() - 1);
			CCPoint dst = cell->getPosition();
			cell->setPositionX(dst.x + m_vCellsPositions[index] - m_vCellsPositions[index - 1]);
			CCMoveTo* moveTo = CCMoveTo::create(0.2f, dst);
			cell->runAction(moveTo);
		}
	}
}

##参考

  1. http://blog.csdn.net/langresser_king/article/details/9167577
  2. http://stackoverflow.com/questions/17272569/cocos2dx-cctableview-issue