An Android Parallax ViewPager.
The advantage of this library is that the UI components within the adapter view can be individually moved at different speeds.
Lemniscate is a library that will help you to make your progress view nice and sleek.
![https://camo.githubusercontent.com/7714d4c02ac5407f8fc0559ed02f440336d4e1fadeec7cd2a1fc3eb905e71e32/687474703a2f2f692e696d6775722e636f6d2f6939743576556d2e706e67)