Android Open Source Libraries

Anirudh SEngineer, Hasura

HASURA

Clarifications

• My definition of Open source

• UI libraries won’t be covered

• Not including some obvious libraries

• This list is not exhaustive

Some questions that need answers

• How do I choose the right library?

• What are the popular libraries?

• How do I get involved in the community?

TRUSTING A LIBRARY

Problem

• Dependency

• Patches

• Support

Criteria for trust

• Blog post recommendations

• GitHub stars

• Last date of update

• Organization that backs it

Companies

Why companies work on open source libraries

• Give back to the community

• Wider adoption

• More eyeballs into the internals of the library

• Showcase of commitment & investment into the community

OPEN SOURCE ANDROID LIBRARIES

HTTP Networking

• Retrofit by Square

• Volley by Google

• OkHttp by Square

Image downloading

• Picasso by Square

• Glide by Bump Tech (acq by Google)

• Fresco by Facebook

• ion by Koushik Dutta (Koush)

• Universal Image Loader by nostra13 (Sergey Tarasevich)

JSON Handling

• Gson by Google

• Moshi by Square

• Jackson by FasterXML

• LoganSquare by BlueLine Labs

JSON Alternatives

• Protocol buffers - Wire by Square

• Apache Thrift - Thrifty by Microsoft

ORM

• OrmLite by j256 (Gray Watson)

• Sugar ORM by satyan (Satya N)

• greenDAO by greenrobot

• DBFlow by Raizlabs

• ActiveAndroid by pardom (Michael Pardo) (not actively updated)

Dependency Injection

• Dagger by Square

• Butterknife by Square (View Injection)

• Dagger 2 by Google

• Roboguice (retired)

Event Bus

• EventBus by green robot

• Otto by Square

Queues

• Tape by Square

• Android Priority Job Queue by Path (>1 year since last commit)

Animations

• Rebound by Facebook

Debugging

• Stetho by Facebook • Chrome DevTools • Network Inspection • Database Inspection • View Hierarchy • dumpapp • Javascript Console

Analysis

• LeakCanary by Square

• Infer by Facebook

Reactive Programming

• RxJava, RxAndroid by ReactiveX

• Agera by Google

• RxBinding, RxRelay by Jake Wharton

• RxLifecycle by Trello

• rxlint by Little Robots

• SQLBrite by Square

Build systems

• Buck by Facebook

Unit testing

• JUnit

• Mockito

• Robolectric

UI Testing

• Espresso

• Robotium

• Appium

• Spoon

Deployment

• Fastlane

• bintray-release by Novoda

• ACRA

• FlexboxLayout by Google

• Bolts by Facebook

• Timber by Jake Wharton

• DiskLRUCache by Jake Wharton (2 years ago)

• Essentials by GreenRobot

Miscellaneous

Overall picture

Disk

Server

App

1. HTTP

2. Image

3. JSON Handling

4. ORM

5. Dependency injection

6. Event Bus

7. Queues

8. Animations9. Debugging

10. Analysis

11. Rx

12. Build system

13. Unit testing

14. UI Testing

15. Deployment

16. Miscellaneous

OPEN SOURCE ANDROID APPS

Google I/O 2015 Wikipedia Wikimedia Commons

WordPress DuckDuckGo Firefox

Plaid Telegram Signal

PocketHub for GitHub ownCloud OwnTracks

INVOLVING YOURSELF IN THE COMMUNITY

Ways to participate

Library App

ExistingDifficult

Very valuableEasy

Valuable

OwnDifficult

Hard to determineModerate

Somewhat valuable

anirudh24seven

Where can you find me?