public void OnEndDrag(PointerEventData eventData)
{
isDrag = false;
float _st = TimeTool.EndTiming();
float posX = scrollrect.horizontalNormalizedPosition;
int index = 0;
//当滑动时间长时，使用该方法
if (_st > 0.25f)
{
float offset = Mathf.Abs(pages[index] - posX);
for (int i = 0; i < pages.Length; i++)
{
float temp = Mathf.Abs(pages[i] - posX);
if (temp < offset)
{
index = i;
offset = temp;
}
}
}
//当滑动时间短时，使用该方法
else
{
float offset = pressPoint.x - eventData.position.x;
//往左滑
if (offset < 0)
{
if (currentPageIndex == 0)
{
index = currentPageIndex;
}
else
{
index = currentPageIndex - 1;
}
}
//往右滑
else
{
if (currentPageIndex == pages.Length - 1)
{
index = currentPageIndex;
}
else
{
index = currentPageIndex + 1;
}
}
}
if (index != currentPageIndex)
{
currentPageIndex = index;
OnPageChanged(pages.Length, currentPageIndex);
}
targethorizontal = pages[index];
}