Udacity Android Nanodegrees

Udacity offers great content for Android Programming in their Nanodegree programs. If you don't have the money you can take same of the courses for free (but without certificate). The skills you learn in this Nanodegree program will accelerate your journey to becoming a working Android Developer. this program teaches the tools, principles, and patterns that underlie all Android development.

1. Java Programming Basics
   TicTacToe
2. How to Install Android Studio
3. Android Basics: User Interface
4. Android Basics: User Input
5. Android Basics: Multi-screen Apps
   Custom Adapter Sample App
   ViewPager Sample App
   Miwok App
6. Android Basics: Networking
   Did You Feel It? App
   Soonami App
   Quake Report App
7. Android Basics: Data Storage
   Pets App
8. Object Oriented Programming in Java
9. Developing Android Apps
   Toy App Exercise
   Sunshine App
10. Advanced Android App Development
    Old Sample Apps
    ClassicalMusicQuiz
    ShushMe
    Emojify
    Squawker
    TeaTime
    My Garden
11. Gradle for Android and Java
12. Android Performance
13. Material Design for Android Developers
14. Mobile Design and Usability
15. UX Design for Mobile Developers
16. Add Google Maps to your Android App
17. Google Location Services on Android
18. Add Google Sign-In to your Android Apps
19. Passwordless Login Solutions for Android
20. Firebase in a Weekend (Android)
21. Firebase Analytics: Android
22. Android Wear Development
23. Android Interview Prep
24. How to Make a Platformer Using libGDX
25. 2D Game Development with libGDX

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App architecture

1. Data Binding
2. ViewModel , Lifecycle , LiveData
3. ViewModelProvider.Factory
4. Room database
5. Room, LiveData, and ViewModel
6. Google Gson
7. Retrofit
8. RXJava
9. Retrofit with RXJava
10. Fundamentals of dependency injection
11. Dependency injection, Dagger 2 Simple Examples
12. Official Dagger Documentation
13. New Android Injector with Dagger 2