Articles & Tutorials

In this post Arnaud Giuliani explains how to migrate from Dagger to the Kotlin based dependency injection framework Koin. No proxy/CGLib, no code generation, no introspection. Just functional Kotlin and DSL magic.

Joe Birch describes the new Firebase Predictions which allow you to predict the behavior of users in your app and use it to improve retention in your applications.

Christophe Beyls focuses on important pitfalls that are mostly undocumented and rarely discussed and may cause issues in your applications if you miss them.

Sebastiano Poggi shows that there's so much more beyond elevation that you can do to tweak the shadows your UI elements cast.

In this blogpost Alin Turcu introduces the latest Groupon Open Source Library: Grox. Grox helps you maintain the state of any application. The concepts of Grox can be compared to JavaScript frameworks like Redux or Flux. It's unidirectional dataflow and it encourages immutable data structures.

In this post Saurabh Pant will explain how to directly draw on a views canvas.

In previous articles, RadialGradiant rendering was done using a software layer rather than a hardware layer. In this short series, Mark Allison takes a look at what the differences are.

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This post explains how to use the ADS1015 Analog to Digital converter with Android Things.

Nate Ebel describes why and how the Udacity mobile team has adopted Kotlin into everyday development.

Paulina Szklarska introduces you to creating relationships in a database with Room.

This is Marek Langiewicz's second blog post about using Kotlin Coroutines and Android Architecture Components in one simple weather app.

The Instagram team recently decided to focus on effective background prefetching as a way to break the dependency of Instagram usability from network availability and a user’s data plan.

A very good recap by Michele Marchetti of the Droidcon 2017.

Nice post by Shikher Verma where he explains some common data structures - applies also for non Android developers.

In this third post by Lukas Lechner he'll walk through some nice features of Kotlin and explain their origins.

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Jobs

UrbanThings have a unique opportunity to shape our transport and mobile ticketing apps, powering millions of journeys. You'll help build out bleeding-edge features such as beacon and NFC-based travel (see ticketless.travel) using new code patterns and modern constructs, including Kotlin and Rx.

We want people to be able to blog and manage their site or shop wherever they are on their iOS and Android devices, taking advantage of the things that make our mobile devices our most important ones such as media and notifications.

Libraries & Code

A simple chart for Android with 3 indicators and one more to indicate overall.

AndroidThings Analog to Digital Converter Driver which supports ADS1015 peripherals using the I2C protocol.

This is the official KotlinConf App! All pieces of the application are implemented in Kotlin: Backend, frontend, and mobile apps.

Grox helps to maintain the state of Java / Android apps.

News

This site contains Kotlin Style and Java Interop Guides for Android.

Google's update on the latest state of Kotlin support on Android.

Videos & Podcasts

Videos of all the presentations and keynotes from droidcon NYC 2017

In this episode, Kaushik walks through the concept of visibility modifiers.

Videos of all the presentations from droidcon London 2017.