RxJava – Reactive Extensions for the JVM – a library for composing asynchronous and event-based programs using observable sequences for the Java VM.

A powerful 🚀 Android chart view / graph view library, supporting line- bar- pie- radar- bubble- and candlestick charts as well as scaling, panning and animations.

Render After Effects animations natively on Android and iOS, Web, and React Native

Your Cheat Sheet For Android Interview - Android Interview Questions and Answers

Android loading animations

Barcode scanner library for Android, based on the ZXing decoder

A library that checks for your apps' updates on Google Play, GitHub, Amazon, F-Droid or your own server. API 9+ required.

An android library to help detect mock locations

An Android TextView that always displays an auto refreshing relative time span with respect to a reference time

A java implementation of Enigma, and a modern attack to decrypt it.

A Clinometer for Android mobile devices

An android inclinometer

Android application for posture recognition and analysis using neural networks and Google ML Vision Kit.