ISSUE #252

30th of May 2021

Announcements

Nine Highlights from the Kotlin Roadmap
JetBrains has updated its plans for 2021 and beyond, and the Kotlin Roadmap for this period is now public. Check out what Kotlin is preparing for us.
blog.jetbrains.com

What’s new in KMM since going Alpha
Kotlin Multiplatform Mobile went Alpha in August 2020. This is the summary of everything that has happened since then.
blog.jetbrains.com

Kotlin Team AMA #3: Ask Us Anything
Last week there was an interesting AMA with the Kotlin Team on reddit, check it out if you missed it.
www.reddit.com

Articles

Use function types or functional interfaces to pass operations and actions
New article showcasing items from the book Effective Kotlin. This time, using function types or functional interfaces to pass operations and actions.
kt.academy

Arrow Meta and solving the issues of Kotlin serialization library by writing a compiler plugin
Karin-Aleksandra wanted to migrate her project to Kotlin serialization, but she found out a lack of naming strategy. She wrote a compiler plugin to help her, and shared the experience with us.
paranoidmonoid.github.io

Structured Concurrency in action using Kotlin coroutines.
This article explores structured concurrency in Android using Kotlin coroutines.
proandroiddev.com

Don’t let Kotlin’s single-expression function ruin your business
Shreyas Patil had some issues with single-expression functions in Kotlin and wrote about it.
medium.com

apply carefully — Kotlin Java Interoperability
Folks at Yammer found recently some issues with Kotlin’s apply scope function and Kotlin compiler’s inability to warn of self-assignment, when the receiver is a Java class.
medium.com

Sponsored

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go.embrace.io

Android

Persisting Typed Objects with DataStore
Layale Matta has written an article about how to use Proto DataStore and Kotlin to store user SharedPreferences.
dev.to

Deserialising like a pro — Getting to grips with Moshi’s JsonReader
Chris Ward is saying goodbye to Gson and hello to Moshi, and wrote about the benefits of using Moshi instead.
christopherward.medium.com

Introduction to the Compose Snapshot system
Jetpack Compose introduces a novel way to handle observable states. This 4th post on the series by Zach Klippenstein explores the lower-level snapshot APIs.
dev.to

Videos

Getting the Most from JPA with Kotlin
This session from JetBrains analyses how to use JPA in Kotlin programs, how to define JPA entities, and how we can use Kotlin to simplify your work.
www.youtube.com

Kotlin for Education
Sebastian Aigner talks about the different facets of Kotlin as a project, a programming language, and a tool for teaching different programming paradigms.
www.youtube.com

Kotlin Tips: How to ensure that your code is used correctly?
Short video showcasing how to use the assert, check and require functions provided by Kotlin to ensure safety in our code.
www.youtube.com

Libraries

adam
adam is an Android Debug Bridge helper written in Kotlin.
github.com

Kodein-DB 0.8.0-beta released
Kodein-DB is a Kotlin/Multiplatform embedded NoSQL database that works on JVM, Android, Kotlin/Native and iOS. It is suited for client or mobile applications.
github.com

Ktor 1.6.0 Released
Ktor 1.6.0 has been released. This minor release brings with it some new features, deprecations, and of course more bug fixes!
blog.jetbrains.com

Turbine
Turbine is a small testing library for kotlinx.coroutines Flow.
github.com

Contribute

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