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

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

Stetho is a debug bridge for Android applications, enabling the powerful Chrome Developer Tools and much more.

An Android library that allows you to easily create applications with slide-in menus. You may use it in your Android apps provided that you cite this project and include the license in your app. Th…

Android filters based on OpenGL (idea from GPUImage for iOS)

Android library (AAR). Highly configurable, easily extendable deep zoom view for displaying huge images without loss of detail. Perfect for photo galleries, maps, building plans etc.

Android Asynchronous Networking and Image Loading

Android Unit Testing Framework

Android library to handle jobs in the background.

RecyclerView extension library which provides advanced features. (ex. Google's Inbox app like swiping, Play Music app like drag and drop sorting)

Google Guice on Android, version 3.0 [RETIRED]

Android Studio plug-in for generating ButterKnife injections from selected layout XML.

Twitter's heart animation for Android

Describe your animation and run !

[NO LONGER MAINTAINED] Android library for better Picker DialogFragments

Android library providing simple way to control divider items (ItemDecoration) of RecyclerView

WebSocket & WAMP in Java for Android and Java 8

Horizontal list view for Android which allows variable items widths

Simpliest way to ask runtime permissions on Android, no need to extend class or override permissionResult method, choose your way : Kotlin / Coroutines / RxJava / Java7 / Java8

An extendable, flexible ExpandableListView widget that supports animations.

Replacement for deprecated official Android crop image function

An IdlingResource for Espresso which wraps an RxJava Scheduler.

An IntelliJ IDEA plugin to navigate between events posted by Otto.

Pure Data for Android

It provides a SeekBar similar to the default Android one, but with two thumb controls allowing a range to be selected, and some other extras as well.

Android layout that can rotate any view.

Customizable progress indicator in the form of 2D geometric shapes

Android Multi Bluetooth Library http://arissa34.github.io/Android-Multi-Bluetooth-Library/

Implementation of the missing feature in Android SDK: audio recorder with a pause.

Hassle-free location updates on Android