Source link: https://github.com/qs-lll/FabActionAnimations
##Animation can bring focus to objects that need user attention. 
####simple factory 
####jump Fab 
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Q & A
A simple widget that can be used to display menu's which can be animated in and out.
This is a circular widget that can be used to display a count down timer or a count up timer.
AWEX (Android Work EXecutor) is a thread pool to execute tasks that uses Promises to deliver results. Promises that can be cancelled, can be combined or even can process collections in parallel automatically.
Tesela is a code generate based library that helps you implement Model-View-Presenter pattern on Android. It let you annotate methods to make them be executed on UI thread or on a background thread. It will help you to keep a weak reference to the view, so forget about leaking your Fragment or Activity anymore while your background work finishes.
Tiny library for tracking screens and events with google analytics.
Kolumbus allows you to explore your Realm database from within your Android application.
Q & A