ISSUE #236

7th of February 2021

Hi Kotliners. For all of you celebrating the Lunar New Year, take care and have a fantastic time with the families and relatives. Now enjoy some Kotlin for this weekend.

Announcements

1.4.30 Is Released With a New JVM Backend and Language and Multiplatform Features
Kotlin 1.4.30 is now available. This is the last 1.4 incremental release, so there are lots of new experimental features that will become stable in 1.5.0.
blog.jetbrains.com

New Language Features Preview in Kotlin 1.4.30
JetBrains is planning to add new language features in Kotlin 1.5, and you can already try them out in Kotlin 1.4.30.
blog.jetbrains.com

The New JVM IR Backend Is in Beta: Let’s Make It Stable Together
The JVM IR backend has been reworked as part of our ongoing project to rewrite the whole compiler. Check the official announcement here.
blog.jetbrains.com

Articles

Bad Kotlin Extensions
Kotlin extensions are a cool feature, not always properly used. In this article, Vasya Drobushkov goes through some examples of how not to write Kotlin extensions.
krossovochkin.com

Kotlin Coroutines Fundamentals
This article covers why we need coroutines, their fundamental blocks in theory, and then shows them in action to explain the blocks clearly.
www.chaddha.me

Enhanced Deprecation in Kotlin
Kotlin’s Deprecation annotation makes life a lot easier for everybody when deprecating code. In this post, Todd Ginsberg shows what @Deprecated can do for us, and how to use it effectively.
todd.ginsberg.com

Android

Bridging the gap between coroutines, JVM threads, and concurrency problems
Manuel Vivo wrote an arLearn more about how coroutines are executed in the JVM and concurrency problems that can arise, with their solution.
manuelvivo.dev

Humble Views, Proud ViewModels
This article dives deep into how to design views and view models, how they wire to a LifecycleOwner, and how this can positively impact your app testability.
dev.to

Getting ready for Declarative UIs — Part 1 — Unidirectional Data Flow
Raul Hernandez Lopez has started a new series of articles on declarative UI. The first article verses about Unidirectional Data Flow.
proandroiddev.com

A comprehensive hundred-line navigation for Jetpack/Desktop Compose
In this article, Arkadii Ivanov demonstrates how Decompose can be used to add full featured navigation in pure Composable world.
proandroiddev.com

Videos

February 2021 Online Kotlin User Group
Second 2021 event of the KUG London, featuring two sessions from Daniele Baroncelli on The D-KMP Architecture and Mohit Sarveiya Micronaut with Kotlin Coroutines
www.youtube.com

Contribute

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