Articles & Tutorials

A tip by Ricardo Costeira for optimizing RecyclerView layouts when using Glide to load images into cells.

This post shows how the Android 11 SDK does more to expose nullability information in its APIs and show how you can prepare your Kotlin code for it.

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Modularization is a technique that allows you to break your monolithic Android application into several independent modules. In this article Vasiliy Zukanov describes when and why you might want to modularize your Android application.

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Sometime last year, Facebook released a new mobile debugging tool, named Flipper. Since not too many developers seem to know about it, Michael Evans focuses on getting set up with Flipper, as well as taking a look at two of its most useful default plugins.

Mohit S explores how to use the Flow combine operator and how it uses an experimental construct called a Select expression. He looks at how the select expressions work and how they are used internally in the combine operator.

This post by Mark Allison focuses on actively detecting connectivity issues so that we may adjust the UI to let the user know that an operation will fail rather than waiting for the user to make an action and then displaying an error message.

This series of blog posts by Manuel Vivo goes in-depth into cancellation and exceptions in Coroutines

Magda Miu examines Kotlin collections and data operations applied to them.

Ryan Harter takes a look at some existing approaches that allow us to create presenters that will live in the context of our views, and then he shares an alternate approach to ensure that presenters are properly bound to their view’s lifecycle.

One of Andre Perkins' favorite features in Kotlin is smart casts. Here he describes how to apply it to some assertion code.

Craig Russell describes a pattern of launching coroutines which cancel when the Activity or ViewModel is destroyed, but support allowing important parts of the coroutine to run uncancelled.

Joe Birch examines the new Dynamic Feature Navigation library which extends from the Navigation Component to allow us to perform navigation which involves destinations defined within Dynamic Feature Modules.

Adam Bennett and his team created file templates for Android Studio to help in generating common code, but it's a bit painful to install them, so here's a way to automate their installation.

Android 10 introduced changes to the behavior of external storage permission. Yacine Rezgui describes how Android 11 Developer Preview continues this effort while adding improvements designed to help developers adapt to the changes.

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Design

In this blog post, Alex Lockwood shares a few examples of how to use Scripter to help build a design systems library in Figma and automate tasks that would have otherwise taken hours or even days to complete.

Jobs

SCRUFF & Jack'd, two of the largest gay social dating apps on Android with more than 20M members worldwide, are looking for experienced Android developers to work on the next generation of their app.

Libraries & Code

This project is a Kotlin library, which is a statically typed wrapper for the NumPy library

MVI framework for Kotlin Multiplatform. Supports Android, JVM, JavaScript, iosX64, iosArm64, linuxX64. Extensions for coroutines and Reaktive libraries.

News

Google is hosting the Google for Games Developer Summit, a free, digital-only experience where developers can watch the announcements and session content that was planned for GDC.

The Android Platform Codelab has been published to take developers from bare metal to a (virtual) device under test in a single page.

Videos & Podcasts

In this episode, Chet Haase goes over Kotlin enums and when statements, the overhead that they can incur, and how to use the Android R8 compiler to reduce that overhead.

Donn & Kaushik talk about logging. When to log, how to log, what to log – our thoughts on the subject.

Google's new series of hands-on tutorial videos on design, tooling & implementation has you covered! Check out the playlist and subscribe for more.