I found a Vertical Steper that follows Google Material Design guidelines:
And also another well documented library Here
I hope it helps.
EDIT: A repo which seems to currently be well supported and used (Sep 2016) https://github.com/baoyachi/StepView
This answer is late to the party, but so far the best I’ve found is this repo from Anton46: https://github.com/anton46/Android-StepsView
It’s quite simple to setup too.
Heres an example:
I’ve created a Step View ViewPager that supports both Horizontal and Vertical paging and doesn’t require drawables and images. You can configure the appearance by simply specifying various attributes.
It can be found here https://github.com/YablokovDmitry/StepViewPager