Android
Articles on Android performance, Kotlin optimization, Gradle builds, and building responsive Android apps.
Android engineering articles 91–120 of 942
Your Development Environment Is a Security Risk: What Every Android Developer Needs to Know
Sanath Sajeeva Kumara from PickMe reveals a chilling truth: simply opening a project in Android Studio can steal your credentials before you click a single button. A 2026 incident proves your IDE might be your ...
The Silent Performance Killer: How a Single Lambda Nearly Destroyed My Compose UI
Raditya Gumay from GoTo discovered his navigation UI was recomposing 60+ times per minute. The culprit? A single lambda inside a data class that looked completely innocent.
Update Your Projects for AGP 9
Márton Braun from JetBrains drops a critical update: Android Gradle Plugin 9.0 just landed with breaking changes that will affect every Kotlin Android project. Time to update your build configs.
Supercharging Mobile Development with Permanent Work Trees and Claude
Umair Ali from ZAR Engineering turned weeks of mobile development work into single days by eliminating a hidden productivity killer. The secret? Rethinking how Git worktrees interact with AI coding assistants.
LLM Flexibility and Agent Mode Improvements
Sandhya Mohan and Trevor Johns from Google just dropped a game-changer: Android Studio now lets you use ANY LLM—OpenAI, Claude, or even local models—to power your AI coding assistant.
The Journey to Compose Hot Reload 1.0.0
Sebastian Sellmair and Azat Abdullin from JetBrains reveal how they built Compose Hot Reload 1.0.0—a zero-config tool that lets you update Kotlin UI code instantly while preserving app state. The engineering be...
Compose Multiplatform 1.10.0
Elvira Mustafina from JetBrains just dropped Compose Multiplatform 1.10.0, and it's solving one of the most annoying pain points in cross-platform development. Three different @Preview annotations? Gone.
NavEntryScope: The missing scope in Android Hilt
Luca from Mercari's Logistics team hit a wall: multiple ViewModels on one screen needed to share data, but Hilt's built-in scopes forced them into Singleton hell with manual cleanup. So they built their own sco...
Project Butter: A Journey for App Performance Improvement
Gojek's Android app was taking 14.35 seconds to launch. With 500+ modules and millions of lines of code, something had to change.
From PNGs to GIFs: Mastering Animated Images in Android with Coil
Pavithra Chamod J from PickMe Engineering tackles a common Android performance trap: GIFs that look great but silently drain memory and tank your UI responsiveness.
Unlock Native Power in Flutter Part 2
Flutter developers: still treating native integration like a black box? You're leaving serious performance on the table.
HashMap and Set Performance Optimization in Android Kotlin
Using List.contains() instead of Set.contains() in your Android app? You might be making it 900x slower than it needs to be.
Mastering Location Services in Mobile Apps — A Guide for Android (Jetpack Compose) & iOS (SwiftUI)
Pavithra Chamod J from PickMe Engineering breaks down the biggest challenge in mobile dev: making location services work seamlessly across Android and iOS without draining batteries or violating privacy.
Unlock Native Power in Flutter Part 1
Flutter's cross-platform magic hits a wall when you need native APIs. Here's how to bridge that gap without losing your mind.
The ViewModel Manager Pattern: How We Tamed a 2000+ Line ViewModel Into Clean, Testable Code
Chamod Lakmal from PickMe Engineering turned a 2,100-line ViewModel nightmare into 350 lines of clean, testable code. His team's test coverage jumped from 12% to 87%, and onboarding time dropped from 2 weeks to...
JioHotstar Android App — Road to 99.9% CFUR
JioHotstar pushed their Android app from 99.5% to 99.8% crash-free rate by hunting down invisible memory killers. Here's how they did it.
Demystifying user journeys: Revolutionizing troubleshooting with auto tracking
Ever tried debugging a mobile app crash without knowing what the user actually did? You're flying blind.
Building a Production-Ready Custom Slider in Jetpack Compose: A Deep Dive into Haptic Feedback, Snapping Logic, and Custom Theming
Chamod Lakmal from PickMe Engineering built a slider that users actually *feel*. Most custom sliders look good but feel dead—this one snaps, vibrates, and eliminates float drift with surgical precision.
How Mobile Development Teams Use Kotlin in 2025
José Luis González, a JetBrains-certified Kotlin Trainer, reveals the production bugs that still plague mobile teams in 2025. One tiny mistake in exception handling can silently break your entire app's lifecycl...
Adaptive Design: Moving Beyond Mobile-Only Apps
Fahd Imtiaz from Google's Android team reveals a stark reality: tablet and foldable users spend 9-14x more on apps than phone-only users. The mobile-only era is officially over.
Exploring the Swift SDK for Android
The Android workgroup just dropped Swift 6.3 SDK nightly previews for Android, and several production apps with millions of downloads are already proving it works at scale.
Supercharging User Engagement: How Mercari is Using Server-Driven UI to Reduce Time-to-Market
Stefan from Mercari's Growth Platform team reveals how they eliminated app releases for marketing campaigns. Their server-driven UI solution turned weeks of development into minutes of drag-and-drop configurati...
Profiling MLC-LLM's OpenCL Backend on Android: Performance Insights
Running LLMs on Android devices just got a serious performance deep-dive. Callstack profiled MLC-LLM's OpenCL backend to uncover what actually happens when you run local AI on mobile hardware.
Kotlin 2.3.0 Released
Kotlin 2.3.0 just dropped with some serious multiplatform firepower. If you're building cross-platform apps, this release fundamentally changes how you work with Swift, Wasm, and native code.
How AI Is Transforming the Adoption of Secure-by-Default Mobile Frameworks
Meta just shared how they're using AI to automatically fix security vulnerabilities across billions of lines of code. The twist? The AI doesn't need to be perfect to be incredibly useful.
Exploring KotlinX Benchmark Results with Kotlin Notebooks
Filipp Zhinkin and Teodor Irkhin from JetBrains show how staring at raw benchmark tables is costing you insights. Kotlin Notebooks turn those text dumps into interactive visualizations that actually tell a stor...
Enhancing Android Security: Stop Malware
Bennet Manuel and Rob Clifford from Google just dropped a security feature so simple it's almost embarrassing we didn't have it sooner: one line of code that blocks malware from reading your app's sensitive dat...
React Native Version 0.83 Release
React Native 0.83 just dropped with a historic first: zero breaking changes. The team is finally delivering on their promise of predictable, painless upgrades.
Building for Android XR: AI Glasses Development
Matthew McCullough from Google just dropped the toolkit that could make AI glasses actually useful. Developer Preview 3 brings purpose-built libraries for augmented experiences that keep users present in the re...
Android Studio Otter 2 Feature Drop
Sandhya Mohan and Trevor Johns from Google just dropped Android Studio Otter 2, and it's packing Gemini 3 Pro with a 1 million token context window. Your AI coding assistant just got a serious upgrade.