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48 stars written in Java
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Design patterns implemented in Java

Java 93,874 27,367 Updated Mar 20, 2026

Bind Android views and callbacks to fields and methods.

Java 25,401 4,564 Updated Sep 2, 2023

Event bus for Android and Java that simplifies communication between Activities, Fragments, Threads, Services, etc. Less code, better quality.

Java 24,740 4,651 Updated Feb 21, 2024

Cryptomator for Windows, macOS, and Linux: Secure client-side encryption for your cloud storage, ensuring privacy and control over your data.

Java 14,936 1,277 Updated Apr 13, 2026

Arduino IDE 1.x

Java 14,561 6,983 Updated Oct 11, 2025

MIT Deep Learning Book in PDF format (complete and parts) by Ian Goodfellow, Yoshua Bengio and Aaron Courville

Java 13,997 2,877 Updated Feb 3, 2026

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.

Java 9,473 2,241 Updated Jul 21, 2022

OsmAnd

Java 5,649 1,139 Updated Apr 13, 2026

An enhanced Guava-based event bus with emphasis on Android support.

Java 5,133 832 Updated Dec 17, 2018

signal-cli provides an unofficial commandline, JSON-RPC and dbus interface for the Signal messenger.

Java 4,437 399 Updated Apr 12, 2026

OpenStreetMap-Tools for Android

Java 3,063 1,016 Updated Nov 20, 2024

[NO LONGER MAINTAINED] Android library for better Picker DialogFragments

Java 2,648 551 Updated Apr 1, 2020

Joda-Time library with Android specialization

Java 2,625 182 Updated Mar 9, 2026

An Android helper class to manage database creation and version management using an application's raw asset files

Java 2,198 534 Updated Sep 23, 2021

A port of the Processing visualization language to JavaScript.

Java 1,690 10 Updated Dec 4, 2018

An app to convert images to PDF file!

Java 1,311 816 Updated Jan 8, 2026

NOTE: This repo (The Clojure programming language) has moved:

Java 917 12 Updated Jul 4, 2014

An implementation of MobileOrg for the Android platform

Java 843 225 Updated Dec 3, 2018

A third-party library of (very) useful additional objects for osmdroid

Java 628 208 Updated Oct 16, 2022

Perform reverse geocoding locally and offline

Java 497 76 Updated Oct 26, 2019

OnActivityResult annotation compiler for Android

Java 455 25 Updated Jun 19, 2022

The Most Pixels Ever is an open-source Java and C++ framework for spanning Processing sketches and openFrameworks applications across multiple screens.

Java 288 67 Updated Jun 8, 2016

Processing JBox2D helper library and examples

Java 287 72 Updated Sep 4, 2025

Modular audio synthesizer library with unit generators in Java

Java 247 65 Updated Sep 4, 2025

The official home of JBidwatcher's source code, an eBay auction sniping, bidding & monitoring software application.

Java 226 72 Updated Jun 5, 2024

A complete GeoJSON implementation for Android.

Java 179 53 Updated Aug 12, 2015

Android MIDI test programs and examples.

Java 167 54 Updated Oct 4, 2025

Mini equalizer for Android apps.

Java 156 49 Updated Sep 12, 2020

FAST App Search Tool

Java 119 50 Updated Oct 29, 2022

Experiments working with shaders in Processing. Click the link below for formatted notes.

Java 93 16 Updated Jun 4, 2012
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