Design patterns implemented in Java

All Algorithms implemented in Java

Google core libraries for Java

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

Just Announced - "Learn Spring Security OAuth":

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

ZXing ("Zebra Crossing") barcode scanning library for Java, Android

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

An extensible media player for Android

RxJava bindings for Android

A fast dependency injector for Android and Java.

Modular and customizable Material Design UI components for Android

This is a sample app that is part of a series of blog posts I have written about how to architect an android application using Uncle Bob's clean architecture approach.

Most popular Mocking framework for unit tests written in Java

A circular ImageView for Android

Android Transition animations explanation with examples.

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

A collection of source code generators for Java.

An Android transformation library providing a variety of image transformations for Glide.

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A collection of samples demonstrating different frameworks and techniques for automated testing

Firebase Quickstart Samples for Android

Android loading animations

Custom fonts in Android the easy way...

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.

Learning RxJava for Android by example

A custom ViewPager title strip which gives continuous feedback to the user when scrolling

From Java To Kotlin - Your Cheat Sheet For Java To Kotlin

EditText in Material Design

A scrollable list of items that centers the current element and provides easy-to-use APIs for cool item animations.