IssueTracker

I face with the same problem. I have different pageMargin in landscape and portrait and when viewpager is scrolled for the more than first position, after rotating device it is shifted.

I beleive the problem is inside onSizeChanged that is called after onConfigurationChanged, it has following code:
        if (w != oldw) {
            recomputeScrollPosition(w, oldw, mPageMargin, mPageMargin);
        }

w always not equals oldw when changing orientation, so recomputeScrollPosition is called, but whit the same values for margin and oldMargin.
This should be fixed.

[Comment deleted]

I found the same problem in suport library v4, wrong align happens only when ViewPager has a page margin > 0.