Android (f/w 2.1+) on screen keyboard for multiple languages
Java interface to OpenCV, FFmpeg, and more
Now continued as OculiX — see oculix.org
CircleProgress, DonutProgress, ArcProgress for Android
Track your favorite TV shows and movies on Android devices
Build cross-platform native progressive web apps for iOS and Android
An Android library for managing images and the memory they use
ConnectBot is the first SSH client for Android
Stream Processing and Complex Event Processing Engine
Sample project created to show some of the best Android practices
Annotation-based library for making deep link handling better
Refresh layout framework
Visual Automation IDE — automate anything you see on screen
Structure-routed visual compiler: recognize and automate GUIs in YAML
The iSphere Project for and RDi 9.5.1.3+
Cross-platform system monitoring for Android and ESP32.
Non-violent educational 2D RPG engine in Java, with a game builder
Web and Mobile framework
Kisekae UltraKiss is a full featured integrated development environmen
A declarative framework for building efficient UIs on Android
Powerful and Beautiful Popup for Android
Search and select country or international phone code
It's a material-design about screen to use on your Android apps
Code scanner library for Android, based on ZXing