Thunderbird for Android – Open Source Email App for Android (fka K-9 Mail)

An Android Animation library which easily add itemanimator to RecyclerView items.

A logger with a small, extensible API which provides utility on top of Android's normal Log class.

Make a cool intro for your Android app.

RxJava binding APIs for Android's UI widgets.

Demos the new Android Design library.

Android library for multiple snapping of RecyclerView

Material You Search component for Android, SearchView

Create circular ImageView in Android in the simplest way possible

An awesome QR code generator for Android.

A library to add Emoji support to your Android / iOS / JVM Application

Android sliding panel that is part of the view hierarchy, not above it.