The Android Music app has a nice implementation of the ViewPager. When sliding the pages, it has a vertical separator consisting of two white (I think) lines and transparency in between. What should the page drawable look like to get that look?
// Here, 10 dip margin and an XML resource called viewpager_margin...
viewPager.setPageMargin(getResources().getDimensionPixelSize(R.dimen.viewpager_page_margin));
viewPager.setPageMarginDrawable(R.drawable.viewpager_margin); // XML = ?
See my comment above. The suggestion solution works!