XmlToJson is an Android Studio Library which converts XML to JSON and JSON to XML.

It is fully configurable and easy to integrate with gradle.

Simple yet powerful SQLite database layer for Android that makes database handling feel like magic.

Overview:

• Simple, intuitive & typesafe API
• Minimal setup needed
• Built in RxJava support with reactive stream semantics on queries and operations
• Built in AutoValue immutable objects support
• Full support for complex columns
• Support for SQLite views
• Persist any third party object with fully customizable object transformers
• No reflection
• Compile time annotation processing
• Probably the fastest library for Android SQLite database operations (without memory caching)

SmartGL is a Graphic Engine for creating Android Games and Apps. It is based on OpenGL and handles 2D Sprites and 3D Textured Objects.

SmartGL is used by several games and apps.

AndroidGestureRecognizer is an Android implementation of the Apple's UIGestureRecognizer framework. https://developer.apple.com/reference/uikit/uigesturerecognizer

For more info about the ui gesture recognizers look this WWDC video https://developer.apple.com/videos/play/wwdc2012/233/

From Apple API reference:

UIGestureRecognizer is an abstract base class for concrete gesture-recognizer classes. A gesture-recognizer object—or, simply, a gesture recognizer—decouples the logic for recognizing a gesture and acting on that recognition. When one of these objects recognizes a common gesture or, in some cases, a change in the gesture, it sends an action message to each designated target object.

A Android sample that implements Redux architecture (using Fluxxan and Anvil) and NoSQL (using SnappyDB).

EasyFlow is a simple and lightweight Finite State Machine for Java

With EasyFlow you can:

• implement complex logic but keep your code simple and clean
• handle asynchronous calls with ease and elegance
• avoid concurrency by using event-driven programming approach
• avoid StackOverflow error by avoiding recursion
• simplify design, programming and testing of complex java applications