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Kotlin Weekly - Kotlin Weekly #316

 
 

ISSUE #316

21st of August 2022
 



Announcements


Celebrating 5 years of Kotlin on Android
Kotlin is celebrating 5 years in Android, but there was a story before that. Read in this post a summary of how was the adoption of Kotlin for Android, the collaboration between Google and JetBrains and more.
android-developers.googleblog.com



Articles


Object-oriented or functional? Two ways to see the world
In this new article by Marcin Moskala, see some of the main differences between the OOP and FP.
kt.academy

Kotlin Data Classes, shallow copies and immutability
The data class copy method in Kotlin creates shallow copies and data classes are NOT immutable data structures by themselves. Learn more about it in this article.
lengrand.fr

Strategy Design Pattern In Kotlin
Strategy Design Pattern is a pattern with which we encapsulate a family of algorithms and makes them interchangeable. This article showcases how to use it and implement it in Kotlin.
proandroiddev.com

Migrating to Ktor 2.0
Migrating from Ktor 1.0 to Ktor 2.0 requires some additional effort. Alexey Soshin narrates his experience in this article.
engineering.depop.com

Domain-Specific Models
For a long time at Trello Android, folks used the same class for parsing API calls (via Gson), making DB transactions (via OrmLite), and displaying data in the UI. This causes some issues, so they decided to split the models they use. Dan Lew explains his case in this article.
blog.danlew.net
 


Sponsored

Solve Crashes and ANRs in the Google Play Console
Are you struggling to solve the toughest crashes and ANRs that affect your Google Play Store ranking? Join this webinar to learn everything about Android vitals, including the data it provides, the gaps it has, and how you can get the visibility needed to solve the toughest crashes and ANRs.
go.embrace.io



Android


State and derived state in Compose
Anders Järleberg wrote an article about state and derived state in Compose: what they are, what they mean and how to use them.
www.bontouch.com



Videos


Design Patterns in Kotlin Episode #2
In this second video of the series, Alexey Soshin is back to discuss some more design patterns with Sebastian.
www.youtube.com

Kotlin Engineering - Expand Contract For Data Migration
Duncan McGregor analyses in this video a situation where he has to migrate the format of a data file, and he needs to prepare the codebase for that.
www.youtube.com

Data Structures in Kotlin - Linked List Removing Values
In this video, you will learn to implement 3 ways for removing values from a LinkedList - pop, removeLast and removeAfter.
www.youtube.com

Let's build Facebook Compose using Jetpack Compose, Firestore, Firebase Auth
This issue contains a lot of greenfield coding. In this one, Alex Styl creates a Facebook clone using Compose and other technologies, and the result is astonishing.
www.youtube.com



Libraries


Strategy Design Pattern In Kotlin
Open-source magician Jaewoong Eum has implemented a WhatsApp clone using exclusively Compose. See how to do it in this GitHub repo.
github.com
 

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Key phrases

Linked List Removing Values Google Play Store ranking data class copy method Libraries Strategy Design Pattern Google Play Console Videos Design Patterns immutable data structures Kotlin Data Classes

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