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The Sleeper Announcement from Google I/O 2026 That Will Change How We Think About Apps

This is a submission for the Google I/O Writing Challenge Everyone walked away from Google I/O 2026 talking about Compose First, Gemini integrations, …

devchallengegoogleiochallengeandroidkotlin
Dev.to May 24, 2026, 11:35 UTC
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AccessLens — a blind person's lanyard, powered by Gemma 4 on-device

This is a submission for the Gemma 4 Challenge: Build with Gemma 4 What I Built AccessLens is an Android app that turns a Pixel 8 worn on a lanyard in…

gemmaa11yandroidkotlin
Dev.to May 23, 2026, 17:27 UTC
EN

R8 Minification Silently Killed My Android App's Core Feature (And Tests Didn't Catch It)

My CI pipeline was green. Unit tests passed. The APK built and signed without errors. I installed it on my Pixel 3. The app launched, looked perfect. …

androidkotlincicdtesting
Dev.to May 20, 2026, 12:31 UTC
EN

Keccak256 From Scratch in 200 Lines of Kotlin (Because Web3j Was 8 MB)

Web3j is 8 MB. My APK is 4.5 MB. So I wrote the Ethereum hash function from scratch. Why Not Just Import Web3j? I was building a native Ethereum walle…

kotlinethereumcryptoandroid
Dev.to May 19, 2026, 22:23 UTC
EN

JetBrains Just Changed KMP Structure. Here's What They Didn't Tell You.

JetBrains announced a new default project structure for KMP. Two shared modules — sharedLogic and sharedUI — plus separate application modules for eac…

kotlinkmparchitecturejetpackcompose
Dev.to May 18, 2026, 18:18 UTC
EN

Chris Banes' Skills Repo: Claude Code Meets Android Development

Last week Chris Banes — yeah, that Chris Banes from the Android team at Google — published a public repo of Claude Code skills targeting Kotlin, Jetpa…

androidkotlinaiproductivity
Dev.to May 16, 2026, 19:19 UTC
EN

PdfKmp 1.0 — A Kotlin Multiplatform PDF Library for Android and iOS

Built specifically for Kotlin Multiplatform PdfKmp is a KMP-first library. The DSL, the layout engine, and the document model all live in commonMain .…

kmpkotlincomposepdf
Dev.to May 16, 2026, 10:33 UTC
EN

I built a Kotlin DSL test automation framework because existing ones kept failing their own standards

Tags: #testing #kotlin #opensource #cicd Many test automation frameworks don't meet the engineering standards they're supposed to uphold. I say that h…

automationkotlinopensourcetesting
Dev.to May 15, 2026, 23:23 UTC
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Optimizing the Edge: Advanced AV1 Implementation for Android TV in 2026

The 2026 Context: From "Testing" to "Triage" In my previous post, I discussed why AV1 is no longer optional for Fire TV Stick 4K Max users. But as we …

androidfiretvkafkakotlin
Dev.to May 15, 2026, 04:15 UTC
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Stop Fighting Your State. Reduce And Conquer It.

MVVM seemed simple. Then you added ten MutableStateFlow properties to your ViewModel. MVI promised purity. Then you wrote a middleware for side effect…

kotlinmvimvvmjetpackcompose
Dev.to May 13, 2026, 18:16 UTC
EN

Three Stabs at a Typed Schema DSL in Kotlin

Imagine a D&D character sheet. It has typed fields (Strength 1 to 18, Class is Fighter or Wizard or Rogue) and rules between them (Halflings can't…

kotlinprogrammingjavafunctional
Dev.to May 13, 2026, 05:20 UTC
EN

I Couldn't Find a Rolling Text Library for Compose, So I Built One

A small library, a long journey through Compose animations, and a few bad ideas along the way. The Itch I work on a crypto-banking app. Crypto prices …

androidkotlinshowdevui
Dev.to May 11, 2026, 22:38 UTC
EN

Adding Cross-Module Routing to Navigation 3 with KSP: nav3-helper Design and Usage

One important change in Compose Navigation 3 is that navigation state is back in the developer's hands. That may not sound like a big deal at first, b…

androidkmpkotlin
Dev.to May 9, 2026, 06:14 UTC
EN

How I built GitHub Store to 12,500 stars in 6 months — I started at 16

Six months ago I was a 16-year-old in Uzbekistan trying to ship a small Android app I'd built. The Play Store process was so heavy for what the projec…

kotlinopensourceandroidshowdev
Dev.to May 9, 2026, 01:20 UTC
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Kotlin 2.0 vs Python 3.13: The Definitive Guide to benchmark in Production

Kotlin 2.0 vs Python 3.13: The Definitive Guide to Benchmarking in Production With Kotlin 2.0’s stable K2 compiler and Python 3.13’s experimental free…

kotlinpythondefinitiveguide
Dev.to May 8, 2026, 00:55 UTC
EN

All You Need Is Lambdas: Java Tests Without a Mocking Framework

Most Java developers have written something like this. Maybe recently. @Test void should_categorize_new_transactions () { final var mockRepository = M…

javakotlinspringarchitecture
Dev.to May 7, 2026, 14:34 UTC
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New ImagePickerKMP API: The easiest way to handle Camera and Gallery in Kotlin Multiplatform

Handling camera and gallery in Kotlin Multiplatform has always been difficult. Different APIs for Android and iOS. Permissions everywhere. State manag…

aiopensourcekotlinmobile
Dev.to May 6, 2026, 05:15 UTC
EN

Building an On-Device AI Scam Detector for Android — Gemma 4 + LiteRT

Originally published on rohitraj.tech UPI fraud hit ₹805 cr in India last year. Cloud APIs leak data. So I built ScamRakshak — fully on-device scam de…

androidaikotlinmobile
Dev.to May 4, 2026, 05:10 UTC
EN

Advanced MVVM in Jetpack Compose: Search, Pagination & Cross-Module Triggers

User types "android" into your search box. That's 7 API calls if you wired it the way I did the first time. A few months later I shipped a pagination …

androidkotlinmvvmjetpackcompose
Dev.to May 4, 2026, 04:18 UTC

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