Android Weekly - Android Weekly #555 🤖

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January 29th, 2023

Articles & Tutorials

Kotlin Sealed Interfaces with KotlinX Serialization JSON

In this post, Sam Edwards describes how he configured KotlinX Serialization to work with Sealed Interfaces.

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Android emulator access to local server

Jeroen Mols shows how you can connect your app on an Android emulator to a development server running on the localhost of your computer.

Operator overloading in Kotlin

We use a lot of operators in Kotlin, many of which can be overloaded to improve our code’s readability. Marcin Moskała shows how this works.

Animated Selector in Jetpack Compose

Are you migrating to Compose but can’t get your AnimatedStateListDrawables to work? Here’s a solution that worked pretty well for Peter Törnhult.

How to develop custom splash screens on Fire TV

Giovanni Laquidara looks at ways to overcome the ambiguous cold start first-launch user experience.

Is the New Gradle Version Catalog Worth It for Your Android Projects?

Miguel shows how to use Gradle version catalogs in a project, what to gain from using this tool, and what can be some of its disadvantages.

Density, Devices and Flaky Tests

In writing tests for a custom Composable, you might discover some odd behavior of those tests being flaky. Alex Vanyo shares some tips to make them more stable.

See Crashlytics issue reports directly in Android Studio

Takeshi Hagikura looks at Android Studio Electric Eel's new App Quality Insights window, which helps you discover, investigate, and reproduce issues reported by Crashlytics all in one place.

Ask other apps for photos, files and more using ActivityResultContracts

This tutorial by Alex Styl teaches how to open other apps and ask for data using the ActivityResultContract in Jetpack Compose.

Remove Duplicates From a List in Kotlin

Ishan Khanna examines four ways to remove duplicate elements from a list in Kotlin using existing functions.

Relay Anchor Leg: Overall impressions

Kristen Halper shares thoughts on the current state of Relay from the developer's point of view.

Applying distributionSha256Sum to Gradle and Android Studio

Mark Murphy writes about how to prevent a potential Gradle Wrapper supply chain attack in Gradle and Android Studio.

Dalvik, ART, JIT, and AOT in Android

Amit Shekhar teaches about the terms Dalvik, ART, JIT, and AOT in Android.

5 Metaball Animations in Jetpack Compose

Using results from a previous example, this article implements examples of stunning gooey animations created in Jetpack Compose.

Profiling and Optimization in Jetpack Compose

Sergey Panov demonstrates profiling and optimization techniques for Jetpack Compose.

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Libraries & Code

WhatIf

Fluent syntactic sugar of Kotlin for handling single if-else statements, nullable, collections, and booleans

ElasticView

ElasticView is a JetpackCompose library will help you add an Elastic Effect for your all kind of widgets

News

Kotlin Dataframe 0.9.1 released!

It’s time for another Kotlin Dataframe update to start off the new year. There have been a lot of exciting changes since the last 0.8.0 preview release.

Control when changes are sent for review with new Play Console features

As a result of your feedback, Google is making some changes to give you more flexibility and control over the app review process.

Videos & Podcasts

What's New In Kotlin 1.8 – Multiplatform Mobile and Native

Pamela Hill chats about some of the Kotlin 1.8.0 updates relating to Kotlin/Native and Kotlin Multiplatform Mobile.

Kotlin Flow API - SharedFlow!

Charfaoui Younes teaches what shared flow is in the Kotlin Flow API, how we can use it, and what are some particularities to this API.

How to Create an Animated Counter Text with Jetpack Compose

Philipp Lackner teaches how you can create a text composable where each digit is separately animated.

Concurrent Flows with the buffer operator

Lukas Lechner explains the buffer operator, with which we can achieve concurrent flows by decoupling the producer and the emitter.

Will Loom Kill Kotlin Coroutines?

In this episode of Talking Kotlin, hear from to Urs Peter about what will happen to Kotlin Coroutines after the arrival of Project Loom in JVM.

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