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

An image loading and caching library for Android focused on smooth scrolling

Bind Android views and callbacks to fields and methods.

A Java serialization/deserialization library to convert Java Objects into JSON and back

A fast dependency injector for Android and Java.

Modular and customizable Material Design UI components for Android

Powerful and flexible library for loading, caching and displaying images on Android.

Android Transition animations explanation with examples.

Realm is a mobile database: a replacement for SQLite & ORMs

Android library to observe scroll events on scrollable views.

This library provides a simple way to add a draggable sliding up panel (popularized by Google Music and Google Maps) to your Android application. Brought to you by Umano.

A sample Android app which showcases advanced usage of Dagger among other open source libraries.

[DEPRECATED] An Android library which allows developers to easily add animations to ListView items

An android library for section headers that stick to the top

[DEPRECATED] RecyclerView made simple

An Android staggered grid view which supports multiple columns with rows of varying sizes.

[DEPRECATED] Android floating action button

📦 Android Parcelables made easy through code generation.

UI form validation library for Android

An application demoing meaningful motion on Android

Android Carousel LayoutManager for RecyclerView

A Tinder-like Android library to create the swipe cards effect. You can swipe left or right to like or dislike the content.

A simple library that makes it easy to pair thin views with dedicated controllers, isolated from most of the vagaries of the Activity life cycle.

Custom Android RecyclerViewAdapters that collapse and expand

An Adapter that allows a RecyclerView to be split into Sections with headers and/or footers. Each Section can have its state controlled individually.

This project has been superseded by SuperSLiM, a layout manager for RecyclerView. I strongly recommend using SuperSLiM and not StickyGridHeaders.

A simple, customizable and easy to use swipeable view stack for Android.