
Android O & Java — Mobile App Development: Go from beginner to paid professional app developer.
[14,018 recommends, 4.7/5 stars]

Kotlin for Java Developers: Use your Java skills to learn Kotlin fast and build Android apps.
[2,045 recommends, 4.6/5 stars]
<Social Networking>
No 1
Android-oss: Official Kickstarter open source app for Android. Bring new ideas to life, anywhere. [4,233 stars on Github].
https://www.kickstarter.com/mobile

No 3
Official WordPress App for Android — Wordpress Engineering [1,597 stars on Github].


<News>
No 4
Plaid: An Android app which provides design news & inspiration as well as being an example of implementing material design. [10,235 stars on Github]. Courtesy of Nick Butcher


<Photos & Videos>
No 7
Telecine: Record full-resolution video on your Android devices [2,127 stars on Github].

No 17
Santa-tracker-android: An entertaining app that brings joy to millions of children on Christmas — Google Engineering [1,147 stars on Github].

No 21
Qksms: The most beautiful SMS messenger app for Android [1,676 stars on Github]. Courtesy of Moez Bhatti


<Media>
No 22
ExoPlayer: An extensible media player for Android — Google Engineering [8,555 stars on Github].

No 27
Kickmaterial: Crowdfunding app concept for Android built on Material Design [1,461 stars on Github].

No 28
Bitcoin Wallet Android: Standalone Bitcoin node, no centralized backend required [1,079 stars on Github].

No 29
GnuCash Android: A companion expense-tracker application [690 stars on Github]. Courtesy of Ngewi Fet


<Architecture>
No 30
Android-CleanArchitecture: A sample app on how to architect an android app using Uncle Bob’s clean architecture approach [10,476 stars on Github]. Courtesy of Fernando Cejas, Developers Advocate at IBM

No 31
Archi: Showcase of 3 Android app architectures: “Standard Android”, MVP and MVVM [3,046 stars on Github]. Courtesy of Iván Carballo

No 32
Android-mvvm-architecture: A detailed sample app that implements MVVM architecture using Dagger2, Room, RxJava2, FastAndroidNetworking and PlaceholderView [2,147 stars on Github].


<Utilities>
No 33
Shadowsocks client: A secure socks5 proxy. Surf the internet privately and securely. [10,893 stars on Github].

That’s it for Android Open Source Projects written in Java. If you like this curation, read best daily articles based on your programming skills on our iOS App.