Linking next and previous buttons

[HongEuiChan]

I tried to use smoothScrollToPosition or setSelection.
The problem is that smoothScrollToPosition only works when the offset is greater than 1,
If setSelection returns to 0 position, the UI is broken.

Please help me if I am wrong.

Item placement is 3 * 3 per screen and scrolls horizontally.
ex) setSelection(pageOffset > 0 ? 10 : 1);