Easy to use device for connecting "old" measuring units (water, power, gas, ...) to the digital world

🥤 COLA: Clean Object-oriented & Layered Architecture

Github Android 个人技术开源影响力排行榜

Android 日志打印框架，在手机上可以直接看到 Logcat 日志啦

Android 代码规范文档

Android 版本适配全套指南

A modern I/O library for Android, Java, and Kotlin Multiplatform.

Square’s meticulous HTTP client for the JVM, Android, and GraalVM.

A type-safe HTTP client for Android and the JVM

UltimateAndroid is a rapid development framework for developing your apps

🔥下拉刷新、上拉加载、二级刷新、淘宝二楼、RefreshLayout、OverScroll，Android智能下拉刷新框架，支持越界回弹、越界拖动，具有极强的扩展性，集成了几十种炫酷的Header和 Footer。

基于插件式的Android换肤框架，支持app内和或者外部插件式提供资源的换肤方案，无需重启Activity。[仅供参考原理，暂不维护]

一种完全无侵入的换肤方式，支持插件式和应用内，无需重启Activity.

一个通过动态加载本地皮肤包进行换肤的皮肤框架

xui 的使用

💥【通用标题栏】通用Android标题栏控件 A Common Titlebar For Android

将中国传统文化、诗词等与天气应用结合的一款基于安卓端的开源APP

[Deprecated] An application about movies with material design

一个拓展性极强的Android任务执行框架。可自由定义和组合任务来实现你想要的功能，尤其适用于处理复杂的业务流程，可灵活添加前置任务或者调整执行顺序。例如：应用的启动初始化流程。

A small, yet full-featured framework that allows building View-based Android applications

Java extension for StarUML

Generate diagrams from textual description

Solar2D Game Engine main repository (ex Corona SDK)

KorGE Game Engine. Multiplatform Kotlin Game Engine

Axmol Engine – A Multi-platform Engine for Desktop, XBOX (UWP), WebAssembly and Mobile games. (a fork of Cocos2d-x-4.0)

android产品研发过程中常用的技术，技巧，实践等

Example of how to use Android Storage Access Framework for a basic use case.

Multiple samples showing the best practices in storage APIs on Android.

An open source Android library that makes handling runtime permissions extremely easy.