An ExpandableRecycleradapter with Recyclerview.
A simple, hierarchical navigation bus and back stack for Android, with optional Rx bindings, and Toothpick integration for automatic dependency-scope management.
blitz is a very lightweight Android library that allows you to set a self-updating string with relative time (e.g. 5 minutes ago) in TextView in just one line of code.
DOESN'T require using custom TextView.
It will not overheadly update your TextView: e.g. if your relative time is 5 minutes ago then blitz will send update only after one minute, not every second. The same with others time units: hours updates once an hour, etc.
Don't be scared to use it in your ViewHolders, 'cause blitz won't let anything leak and will take care of the system resources.