Articles & Tutorials

The Kotlin compiler is smart. Denis Crăciunescu shows how you can give the compiler hints, using Contracts, to make it even smarter.

When there is an exchange of information happening, we often want to verify that the origin of the data is the right one. Enrique López-Mañas pulls together how to do it in this great article.

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Learn how to build a live streaming application on Android using face filters, which have gradually become one of the most popular entertainment modes. Create your application. Check out the attached blog for a step by step tutorial.

When designing a library, minimizing your API surface – the types, methods, properties, and functions you expose to the outside world – is a great idea. In this article, Márton Braun takes a closer look at what this means.

In this Android tutorial by Kshitij Chauhan, you’ll learn how to implement Full Text Search in Room and use advanced FTS operations, such as ranking search results.

Mark Allison takes a look at Shared Axis transitions from the Material Design Components library. These are transitions between distinct layouts of Fragments with directional components.

In this tutorial by Prashant Barahi, you’ll use RxJava combining operators to merge, filter and transform your data into succinct and reusable streams.

To model a class that holds just data, you should use a data class. Read on to learn more from Florina Muntenescu about the advantages of data classes, their restrictions and to take a look under the hood of how they’re implemented.

This article shows how to leverage a set of Kotlin delegates to simplify your Android View Binding implementation on each activity and fragment.

Alex Zhukovich explores the "Layout Inspector" tool with the ability to do UI debugging and analysis of the User Interface for UI testing.

In this article, Vlad Sonkin looks at Android View Binding, compares it with all other solutions, and examines how we can use it.

With modularization being all the hype, should you also modularize an SDK? Jeroen Mols continues his series on Android library development, taking a look at modularization.

Bevan Steele shares how to use the Barista library to write easier, cleaner, and less fragile UI tests using Espresso.

John O'Reilly notices changes being made that would allow the use of Jetpack Compose to develop UI for desktop apps. Here are some of his findings.

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Jobs

Argent is the world's most simple and secure crypto wallet, backed by the investors of Slack and Spotify. We're hiring a Senior Android Engineer to help us make the future of money and the internet more open and fair. You'll take ownership of the entire development lifecycle.

Squarespace is seeking a Senior Software Engineer - Android to join our small, collaborative team responsible for the end-to-end development of our Android applications and the long-term vision of Squarespace on mobile devices. This role reports to our Engineering Manager in New York City.

Unfold is looking for a Team Lead - Android. You will join our small, collaborative team responsible for the end-to-end development of our Android applications and the long-term vision of Unfold on mobile devices. You will report to our Engineering Manager in Dublin, Ireland.

Libraries & Code

Android Intent & Bundle extensions that insert and retrieve values elegantly.

Barista makes developing UI test faster, easier and more predictable. Built on top of Espresso, it provides a simple and discoverable API, removing most of the boilerplate and verbosity of common Espresso tasks. You and your Android team will write tests with no effort.

A Gradle Plugin to determine which modules were affected by a set of files in a commit.

News

Android now includes APIs for managing and presenting with identity documents in a more secure and privacy-focused way than was previously possible

Videos & Podcasts

In this session, Rosário talks about some of the features that are present in the Firebase KTX libraries and the features that you can implement yourself to get cleaner and more idiomatic Kotlin code.

Kaushik and Donn talk with Valera Zakharov who’s a Staff Engineer at Slack and considered one of the experts in the field of mobile testing.

This talk by Lauren Green focuses on everything from the design process of drawing your icons, animating your icons into animated vector drawables and implementing them into your Kotlin code for your Android application

In this session, Android Developer Advocate Wojtek Kalicinski will show you how to opt into Play App Signing and what choices are available to you, including when and how to retain access to your app signing key.

Events

In this talk on Thu, Nov 12, 2020, Ondrej Komarek will show you how to make a simple AR game on Android using technologies like ARCore and Sceneform.