android

Android is a mobile operating system based on a modified version of the Linux kernel and other open source software, designed primarily for touchscreen mobile devices such as smartphones and tablets. Android is developed by a consortium of developers known as the Open Handset Alliance and commercially sponsored by Google. It was unveiled in November 2007, with the first commercial Android device launched in September 2008.

• https://developer.android.com/index.html

Learn

• Android Developer: Step by step guide to becoming an Android developer
• Android Developer Roadmap
• Training for Android developers - zh-cn
• Android Examples [Examples] Simple basic isolated apps, for budding android devs.
• Android Tips & Tricks ☑️ [Cheatsheet] Tips and tricks for Android Development

Practice

• Best practices in Android development: Do's and Don'ts for Android development, by Futurice developers
• Android Interview Questions

Projects

• Telegram for Android source
• topeka, A fun to play quiz that showcases material design on Android
• androidpn, An open source project to provide push notification support for Android -- a xmpp based notification server and a client tool kit.

Tools

• scrcpy, Display and control your Android device
• LeakCanary is a memory leak detection library for Android. https://square.github.io/leakcanary
• AndroidGodEye A performance monitor tool , like "Android Studio profiler" for Android , you can easily monitor the performance of your app real time in pc browser
• Anbox is a container-based approach to boot a full Android system on a regular GNU/Linux system https://anbox.io
• AndroidAutoSize: A low-cost Android screen adaptation solution (今日头条屏幕适配方案终极版，一个极低成本的 Android 屏幕适配方案).

FAQs

• 旋转引起 Activity 销毁、创建
  • Android旋转屏幕时阻止activity重建
    • android:configChanges="orientation|screenSize"
  • 最近碰到的接微信支付引起的坑爹问题
• AndroidStudio 代码全红，但可正常运行解决方法及解决后续代理的问题
  • File -> Invalidate Caches/Restart...

Resources

• Awesome Android, A curated list of awesome Android libraries and resources. For general Java libraries have a look at awesome-java.
• Open-Source Android Apps, This is a collection of Android Apps which are open source.
• AndroidDevTools: 收集整理Android开发所需的Android SDK、开发中用到的工具、Android开发教程、Android设计规范，免费的设计素材等。