Articles & Tutorials

With the announcement of the first Android 12 Developer Preview, Joe Birch started to take a dive into the new unified rich content API, which provides a simplified way of transferring media between applications.

This post by Enrique López-Mañas aims to provide some insights based on his personal experience using GitHub Actions for Android app builds.

Most major build tools have some degree of public alpha, beta, RC, or snapshot channel to allow developers to try out new versions and features. Zac Sweers writes how his team continuously tests upcoming releases to catch problems early.

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One thing that can highly elevate your memory consumption is bitmaps. In this article, Paulina Sadowska shows how to find out the size of bitmaps that are loaded in memory and how to make them smaller.

In an earlier post, Rasul Aghakishiyev showed how to create Shapes with cut corners. Now he continues to add some new functionality such as rounded corners to a ShapeableView.

Mark Murphy shows how to secure your builds by using Gradle artifact safelists.

Akua Prempeh goes over how developing with Kotlin can lead to fewer crashes; and how you can monitor your app’s stability with Firebase Crashlytics once your app has been released.

Enrique López-Mañas discusses the following aspects of creating Android Libraries: keeping in mind exposed functionality, Kotlin/Java interaction, exposing resources and transitive dependencies with strategies to solve them.

Last year, Nick Skelton decided to swap from OSX to a custom-built PC with Ubuntu. The following is a narrative about why and how he decided to make the switch, along with some results.

Mark Allison shows that there is a relatively new addition to AndroidX Activity which simplifies setting runtime permissions somewhat: ActivityResultContracts.

Rechee Jozil takes a look at how suspend functions actually work underneath the hood. What does Kotlin actually generate?

At some point, you’ll need to collect (receive items) from a Flow (reactive stream) within a Kotlin Coroutine. Sam Edwards shows you how it's done!

In this article, Julien Salvi explores a journey to Android App Bundles, from his own motivations to the development within the application and the CI with CircleCI and fastlane to release on the Play Store.

Testing can sometimes be seen as not adding value, or being too complicated. Rob Holmes tries to change those perceptions, to help you see why tests are just as important as the code itself!

Nicole Borrelli shares an important change coming to Android 12 that improves both app and platform security. Activities, services, and broadcast receivers with declared intent-filters now must explicitly declare whether they should be exported or not.

Gabor Varadi's tips and style recommendations help you write better Kotlin and make your code a joy to read.

A lot of data-heavy tasks, as well as optimization problems, boil down to performing computations over multidimensional arrays. Maria Khalusova shares the first preview of a library for doing just this in Kotlin.

Jobs

Help Fundrise bring the future of real estate investing to everyone! We're looking for talented Android Engineers to join our small but growing team to help us get to the next level. Do you have a passion for Kotlin, CI/CD, testing, and clean architecture? Send us your resume, we'd like to talk!

Work for the world's first omnichannel outlet with its own online shop and develop our app in the world's coolest team by using the latest technologies. Fluency in German is mandatory.

Perry Street Software publishes two of the world’s largest gay & queer social dating apps. We are hiring Android developers with experience in design and architecture patterns, Android SDK, Kotlin, RxJava, and a good sense of usability and product.

At Monzo we’re building a bank that’s fair, transparent and a pleasure to use, and we're looking for a product-aware Android engineer passionate about great UI and UX to help!

Join the team that delivers the member-facing experience for our core products - the bike & tread. This team works heavily with Kotlin - all within our custom fork of AOSP. We care about architecture, testing, and “together we go far” mentality. Staff engineers at Peloton are technical leaders

Hi! We are that super-groundbreaking technology provider you've probably never heard of! We're building the PhotoEditor SDK and VideoEditor SDK, fully customizable photo and video editing solution for web and mobile platforms that are being used by marvelous brands around the world. Now, we're on the rise for the next generation of our SDKs. And that's where you step in.

Libraries & Code

Lightweight navigation library for Compose for Desktop

Android DataBinding kit for notifying data changes from Model layers to UI layers on MVVM architecture

Multidimensional array library for Kotlin.

News

Google announced the release of Material Design Components (MDC) 1.3.0! A host of exciting new features have been added along with many bug fixes and accessibility improvements.

Jetpack WindowManager library helps you build apps that are aware of new device features such as folds and hinges. Kenneth Ford writes about a couple of updates in the latest release.

Google has released the first Developer Preview of Android 12, the next version of Android, for your testing and feedback.

Business

This post by Gergely Orosz attempts to summarize the most common equity compensation setups you might come across, help you understand their value, and point to additional resources.

Videos & Podcasts

Raul Hernandez Lopez's FOSDEM presentation on getting ready for declarative UIs with unidirectional data flow using Kotlin Coroutines.

In this episode of Talking with Apples, chat to Kilo Loco (Kyle) about AWS Amplify. We deep dive into the tool suite and what it can offer mobile developers. This included API's Databases, Storage, and more

Jovche Mitrejchevski sets up the deployment script to run both Unit and UI tests as a requirement before publishing to Play Store. The UI tests are leveraging the Firebase Test Lab to run on a real physical device, and we walk through the actual setup required on the Firebase Console side to be able to run the tests

Tor, Romain, and Chet were joined by Dan Bornstein, to talk about some of the early placeholder VMs used while Dalvik was coming online, some of the design decisions for Dalvik, and nice techy details about runtimes, garbage collectors, and optimizations.

Talk about Dependency Injection with Arnaud Giuliani on stage, Kotlin GDE, and author of Koin, a popular dependency injection framework for Kotlin.

Cody Engel's series taking a closer look at the functionality of Kotlin collections.

Hosted by Kari Byron, hear the latest on Jetpack Compose from the people who built it, plus a fireside interview with Android’s Dave Burke