相册浏览时，浏览到最后一张，不能返回到第一张循环浏览

1 VfxBool VappGalleryViewerPage::canGoNext()
{
if(!m_mediaList)
{
return VFX_FALSE;
}
//hsz start添加如下代码
if((m_currentIndex + 1) >= m_mediaList->getMediaCountInGroup(0))
{
m_currentIndex = -1;
}
//hsz end
return VfxBool((m_currentIndex + 1) < m_mediaList->getMediaCountInGroup(0));
}
2 VfxBool VappGalleryViewerPage::canGoPrevious()
{
if(!m_mediaList)
{
return VFX_FALSE;
}
if(m_currentIndex > 0 && m_mediaList->getMediaCountInGroup(0) > 0)
{
return VFX_TRUE;
}
else
{
//hsz start添加如下代码
m_currentIndex = m_mediaList->getMediaCountInGroup(0) - 1;
return VFX_TRUE;
//hsz end
// return VFX_FALSE;//删除此语句
}
}
3 MediaIndex VappGalleryViewerPage::getNextIndex()const
{
if(NULL == m_mediaList)
{
return 0;
}
//hsz start添加如下代码
if(m_currentIndex == m_mediaList->getMediaCountInGroup(0) - 1)
{
return 0;
}
else
{
return vfxMin(m_mediaList->getMediaCountInGroup(0) - 1, m_currentIndex + 1);
}
//hsz end
//删除如下语句
// return vfxMin(m_mediaList->getMediaCountInGroup(0) - 1, m_currentIndex + 1);
}
4 MediaIndex VappGalleryViewerPage::getPrevIndex()const
{
//hsz start添加如下代码
if(m_currentIndex == 0)
{
return m_mediaList->getMediaCountInGroup(0) - 1;
}
else
{
return vfxMax(0, m_currentIndex - 1);
}
//hsz end
//return vfxMax(0, m_currentIndex - 1);//删除此语句
}