Rui Vieira

Android-lad, ex-Gamer, ex-FPV pilot, Superbiker & Dirtbiker, Adrenaline addict, DIY enthusiast, Ale drinker.

[Jorge Castillo @JorgeCastilloPr]

Dejavu is a library to test recomposition count and track recompositon regressions.

Very convenient 💯

[Android Developer News @AndroidDev_News]

Great conversation with Jake Wharton at #KotlinConf26! He dove into the evolution of #Kotlin, the power of community-driven development, and the value of building in the open to foster professional growth and create reusable engineering solutions. #Ai
https://t.co/mnycx6TpaW

[Jorge Castillo @JorgeCastilloPr]

A big downside of agent Skills is that they can quickly bloat context.

Keep them as thin as possible. Best pattern I found to improve this is to move deeper details to resource files that are only loaded if the agent needs to.

Good example of this 👉 Android Skills repo

[Anuj @anujcodes_21]

🚨 Anthropic just showed a 27-minute workshop on how to actually do prompts for Claude.

Taught by the people who built it.

Free. No registration. No paywall.

I've seen $300 courses that don't cover what they teach in the first 8 minutes.

Watch it and bookmark it now.

[Jaewoong Eum @github_skydoves]

Android is now Compose First; Views are now in maintenance mode.

[International Cyber Digest @IntCyberDigest]

‼️🚨 BREAKING: GitHub has been compromised by TeamPCP. GitHub has confirmed the internal breach. A poisoned VS Code extension on an employee device exfiltrated ~3,800 internal repositories.

TeamPCP is already selling the data on a cybercrime forum.

[Kotlin by JetBrains @kotlin]

🤖 Kotlin agent skills are now available on GitHub!

Explore AI-assisted skills for converting Java to Kotlin, migrating to AGP 9.0, mapping JPA entities, and moving from CocoaPods to Swift Package Manager.

Check out the repository 👇 https://t.co/F6DMbfXsb6

[Jorge Castillo @JorgeCastilloPr]

This might sound counter intuitive to you if you’ve been doing Android for the last decade, but makes sense 👇

ViewModels should desirable be scoped to the specific part of the UI that they are relevant to. That is normally not a complete screen, but something smaller.

[Anuj @anujcodes_21]

🚨 Anthropic just showed a 24-minute workshop on how to actually do prompts for Claude.

Taught by the people who built it.

Free. No registration. No paywall.

I've seen $300 courses that don't cover what they teach in the first 8 minutes.

Watch it and bookmark it now.

[Jaewoong Eum @github_skydoves]

Published a new open-source project, Android Testing Skills!

⚡️ A set of skills for Android testing: Compose UI, AndroidX Test, JVM unit tests, and ADB.

https://t.co/WblM9S2J9r

[Marcin Moskała @marcinmoskala]

Operators in Kotlin can be used not only with primitives and strings, but also with other classes BigDecimal, collections, date and time, and much more.

[Jaewoong Eum @github_skydoves]

Tuning a Compose wave animation on a real Android device with Compose Hot Reload.

Change a color, frequency, or layer count. See it updated in real-time. Don't rebuild your whole project.

https://t.co/4qmiWkDqBp

[Marcin Moskała @marcinmoskala]

𝚅𝚒𝚜𝚞𝚊𝚕𝚃𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚊𝚝𝚒𝚘𝚗 is a tool in Jetpack Compose that lets you change how text looks in a TextField without altering the actual input. For example, it can be used to hide numbers, or even add dashes, when user types credit card. 💎

[Android Developer News @AndroidDev_News]

New version for Android #Skill
V0.0.2
* Edge-to-edge
* Play billing
* Navigation 3
* AGP-9 upgrade
Helpful for #AndroidDev #AI
https://t.co/WaeB4qxyY7

[Jorge Castillo @JorgeCastilloPr]

They finally did it.

The Android team just released their own official collection of agent Skills. These follow Android best practices and rely on the official docs.

The Android Skills repo ✨

Link in comment 👇

[Jorge Castillo @JorgeCastilloPr]

Someone finally made Claude understand Android UI. The Material Design 3 Skill:

- Generates proper Material 3 code
- 30+ components covered
- Web, Flutter, Compose
- Built-in MD3 audit scoring
- All latest expressive updates

If you care about design systems, this is a must.

[Omar Sanseviero @osanseviero]

Gemma 4 is now in Android Studio!

You can use Android Studio Agent mode to develop features, vibe code Android apps, refactor your code, and fix bugs, all locally, and powered by Gemma!

[Marcin Moskała @marcinmoskala]

The simplest way to display Android fragment in Compose is using AndroidFragment, which looks amazing, but has two dirty secrets you must know before using it. 🤫

[Jorge Castillo @JorgeCastilloPr]

I ported the fancy loaders to Jetpack Compose.

Copy. Paste into your project. Done 🚀

[Jaewoong Eum @github_skydoves]

Two-dimensional scrolling: scrollable2D, draggable2D.

https://t.co/DSyeE42Mtj