ISSUE #287

30th of January 2022

Hi folks! The Lunar New Year is coming. For all of you celebrating it, we wish you Happy Holidays. Most of the submissions we receive later are related to Compose and KMP. We hope you enjoy this edition of Kotlin Weekly.

Announcements

The new AWS SDK for Kotlin with Coroutines support
The new AWS SDK for Kotlin was announced at AWS re:Invent in December 2021. The SDK is currently in preview and is expected to become stable soon.
blog.jetbrains.com

Articles

Awesome resources for learning Kotlin Multiplatform Mobile
An Tran has collected a bunch of awesome resources that will help you to polish your KMP skills.
antran.app

One Kotlin team for all your mobile apps?
JetBrains’ Compose Multiplatform project opens the door to have a Kotlin team to rule them all. Check out this analysis by Gaetan Zoritchak.
medium.com

REST API With Ktor, Ktorm and PostgreSQL
In this step-by-step tutorial, Piotr shows you how to create a simple REST API using Ktor, Ktorm and PostgreSQL.
codersee.com

Kotlin Multiplatform on the Web
Kotlin Multiplatform for web does not get the same attention as its mobile counterparts. This post covers the experience at Doist and takeaways integrating a Kotlin/JS library into an existing Web application.
doist.dev

Flow lifecycle operations
Flow has some lifecycle methods like onEach, onStart, onCompletion, onEmpty and catch. This article explains all of them.
kt.academy

Sponsored

What's next for developers in 2022?
Answer questions about Kotlin and other programming languages, developer tools & platforms, and get a chance to win 💵 $1000 for your desktop set-up, a Nintendo Switch, licenses, Amazon vouchers and more 🎁! Your answers will help to spot new trends and build better tools to support software creators. Key insights will be shared with the dev ecosystem at the end of the survey.
developereconomics.net

Android

Jetpack Compose Migration: Part 1. Get Started
Engine Bai has written an article giving some tips on how to get started with a migration from Android XML to Compose.
enginebai.medium.com

Jetpack Compose: MVVM State management in a simple way
In this blog post, you will learn how to manage all the states of a Compose screen using only one state variable.
blog.canopas.com

Every Composable deserves a ViewModel
Scoping a ViewModel per Composable with remember is an Android challenge. Sebastian Lobato come up with some ideas to get it solved.
engineering.q42.nl

Videos

What are Kotlin Scope Functions? How to pick the best for every use case?
This video showcases what are the main differences between each scope function, and provides some Android samples that give you an idea what is the way for selecting a scope function for use cases.
www.youtube.com

Podcast

ADB: Kotlin Magic Platform
In this episode, Yigit Boyar from the Android Toolkit Team chats about Kotlin multiplatform.
adbackstage.libsyn.com

Conferences

FOSDEM Kotlin devroom track announced
The nice folks at the FOSDEM have finalized the track for the Kotlin DevRoom. If you have the chance you should check it out: FOSDEM is free, open, virtual and everybody is engaged with the Kotlin community.
fosdem.org

Libraries

Clikt
Clikt is a multiplatform Kotlin library that makes writing command-line interfaces simple and intuitive.
github.com

HtmlToComposeForWebConverter
IntelliJ-based plugin that can convert HTML to Compose for Web code.
github.com

gradle-kotlin-delegates
A bunch of kotlin delegates tailored to make Gradle's Lazy Configuration a lot more enjoyable for both, plugin authors and consumers trying to configure them.
github.com

Butterfly
Butterfly helps you to build adaptive and responsive UIs for Android with Jetpack WindowManager.
github.com

Contribute

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Thanks to JetBrains for their support!

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