private int GetPageIndexBySlotIndex(ScrollSnapBase slotScroll, int itemIndex)
{
if (itemIndex < 0)
{
return(0);
}
int stopAtIndex;
var currentSlotIndex = slotScroll.TargetPage % slotScroll._screens;
if (currentSlotIndex <= itemIndex)
{
stopAtIndex = slotScroll.TargetPage - currentSlotIndex + itemIndex;
}
else
{
stopAtIndex = slotScroll.TargetPage - currentSlotIndex + slotScroll._screens + itemIndex;
}
return(stopAtIndex);
}
