https://sudarshantechlabs.com/blog/tag/kotlin Posts tagged Kotlin from SudarshanTechLabs. en-us Mon, 03 Aug 2026 00:00:00 GMT support@sudarshantechlabs.com (Sudarshan Chaudhari) support@sudarshantechlabs.com (Sudarshan Chaudhari) https://sudarshantechlabs.com/blog/paging-3-efficient-list-loading-at-scale https://sudarshantechlabs.com/blog/paging-3-efficient-list-loading-at-scale Loading a thousand-item list all at once is how apps run out of memory and feel sluggish. Paging 3 loads data in chunks as the user scrolls. Here's how it fits together with Compose, Room, and a network source. · 4 min read Mon, 03 Aug 2026 00:00:00 GMT Paging 3 Android Jetpack Compose Performance Kotlin https://sudarshantechlabs.com/blog/building-an-android-widget-with-jetpack-glance https://sudarshantechlabs.com/blog/building-an-android-widget-with-jetpack-glance Jetpack Glance lets you build home-screen widgets with a Compose-like API instead of clunky RemoteViews. Here's how it works, the constraints that make widgets different from app UI, and how to keep them updated efficiently. · 4 min read Sat, 01 Aug 2026 00:00:00 GMT Jetpack Glance Widgets Android Jetpack Compose Kotlin https://sudarshantechlabs.com/blog/ktor-client-in-android-modern-rest https://sudarshantechlabs.com/blog/ktor-client-in-android-modern-rest Ktor is a clean, coroutine-native HTTP client that shines especially in Kotlin Multiplatform projects. Here's how I set it up for Android — serialization, auth, retries, and error handling — and when I'd still pick Retrofit. · 4 min read Thu, 30 Jul 2026 00:00:00 GMT Ktor Networking Android Kotlin REST https://sudarshantechlabs.com/blog/jetpack-compose-custom-layouts-and-modifiers https://sudarshantechlabs.com/blog/jetpack-compose-custom-layouts-and-modifiers When Row, Column, and Box can't express your design, Compose's Layout composable and custom modifiers let you measure and place children yourself. Here's how the measure-and-place model works and when to reach for it. · 4 min read Wed, 29 Jul 2026 00:00:00 GMT Jetpack Compose Custom Layout Android UI Kotlin https://sudarshantechlabs.com/blog/google-maps-in-jetpack-compose-complete-guide https://sudarshantechlabs.com/blog/google-maps-in-jetpack-compose-complete-guide Adding Google Maps to a Compose app is straightforward once you know the Maps Compose library — markers, camera control, custom styling, and the performance and lifecycle gotchas that bite people first. · 4 min read Mon, 20 Jul 2026 00:00:00 GMT Jetpack Compose Google Maps Android Maps Kotlin https://sudarshantechlabs.com/blog/writing-tests-for-jetpack-compose https://sudarshantechlabs.com/blog/writing-tests-for-jetpack-compose How I test Compose UIs without the suite turning brittle — what to assert, how the testing APIs work, the synchronization model that makes flakiness rare, and where UI tests stop earning their keep. · 4 min read Wed, 15 Jul 2026 00:00:00 GMT Jetpack Compose Testing Android UI Testing Kotlin https://sudarshantechlabs.com/blog/hilt-everything-you-need-to-know https://sudarshantechlabs.com/blog/hilt-everything-you-need-to-know A from-the-ground-up guide to Hilt on Android — what dependency injection actually buys you, the core annotations, how to provide and scope dependencies, and the small set of rules that keep DI from turning into a maze. · 4 min read Tue, 14 Jul 2026 00:00:00 GMT Hilt Dependency Injection Android Kotlin Architecture https://sudarshantechlabs.com/blog/kotlin-gradle-build-setup-version-catalogs https://sudarshantechlabs.com/blog/kotlin-gradle-build-setup-version-catalogs Keeping Gradle sane across 20+ Android apps means one source of truth for versions. Here's how I use version catalogs, convention plugins, and a shared version file to stop dependency drift before it starts. · 4 min read Thu, 09 Jul 2026 00:00:00 GMT Gradle Kotlin Version Catalog Android Build https://sudarshantechlabs.com/blog/jetpack-compose-state-management-simple-to-complex https://sudarshantechlabs.com/blog/jetpack-compose-state-management-simple-to-complex How I think about state in Compose as screens grow — from a single remembered value to hoisted state, ViewModel-backed StateFlow, and the rules that keep recomposition cheap and bugs rare. · 5 min read Tue, 07 Jul 2026 00:00:00 GMT Jetpack Compose State Management Android StateFlow Kotlin https://sudarshantechlabs.com/blog/jetpack-compose-navigation-my-setup https://sudarshantechlabs.com/blog/jetpack-compose-navigation-my-setup Navigation in Compose has rough edges. After setting it up in 10+ apps, here is the pattern that avoids the common pain points — type-safe routes, bottom nav integration, and ViewModel scoping. · 3 min read Wed, 01 Jul 2026 00:00:00 GMT Android Jetpack Compose Navigation Kotlin https://sudarshantechlabs.com/blog/kotlin-coroutines-patterns-every-app https://sudarshantechlabs.com/blog/kotlin-coroutines-patterns-every-app After using Coroutines across 22+ Android apps, certain patterns appear in every codebase. Here are the ones that matter — with the mistakes they prevent. · 3 min read Tue, 30 Jun 2026 00:00:00 GMT Kotlin Coroutines Android Architecture https://sudarshantechlabs.com/blog/android-background-work-workmanager-coroutines-services https://sudarshantechlabs.com/blog/android-background-work-workmanager-coroutines-services Three tools for background work, three different jobs. Picking the wrong one means battery drain, broken behavior on OEM devices, or work that silently stops running. · 3 min read Mon, 29 Jun 2026 00:00:00 GMT Android Kotlin WorkManager Architecture https://sudarshantechlabs.com/blog/clean-architecture-android-when-it-helps https://sudarshantechlabs.com/blog/clean-architecture-android-when-it-helps Clean Architecture is the default recommendation for Android. It's also frequently over-applied. Here's an honest take on when it earns its complexity and when it doesn't. · 3 min read Sat, 27 Jun 2026 00:00:00 GMT Android Architecture Kotlin Engineering https://sudarshantechlabs.com/blog/kotlin-stateflow-vs-livedata-2026 https://sudarshantechlabs.com/blog/kotlin-stateflow-vs-livedata-2026 LiveData is deprecated. StateFlow is the answer — but knowing why matters more than knowing which. Here's the practical breakdown after switching 22+ Android apps. · 3 min read Fri, 26 Jun 2026 00:00:00 GMT Android Kotlin Architecture StateFlow https://sudarshantechlabs.com/blog/ai-pair-programming-what-it-gets-right-and-where-it-fails https://sudarshantechlabs.com/blog/ai-pair-programming-what-it-gets-right-and-where-it-fails An honest look at how AI pair programming tools perform in real Android development workflows, including code generation, context understanding, and integration challenges. · 6 min read Wed, 24 Jun 2026 00:00:00 GMT Android Kotlin AI Tools https://sudarshantechlabs.com/blog/how-to-give-claude-context-about-your-codebase https://sudarshantechlabs.com/blog/how-to-give-claude-context-about-your-codebase Learn how to feed Claude the right context so it writes accurate Kotlin snippets, refactors UI components, and automates tests for your Android app. · 5 min read Tue, 23 Jun 2026 00:00:00 GMT Android Kotlin AI Claude Code https://sudarshantechlabs.com/blog/claude-code-vs-cursor-vs-copilot-an-android-devs-take https://sudarshantechlabs.com/blog/claude-code-vs-cursor-vs-copilot-an-android-devs-take As a solo Android developer who shipped 22 apps, I tested Claude Code, Cursor, and GitHub Copilot on real projects for 6 months. Here's what actually works. · 5 min read Tue, 16 Jun 2026 00:00:00 GMT Android Kotlin AI Tools Solo Dev https://sudarshantechlabs.com/blog/the-boring-work-of-maintaining-20-apps https://sudarshantechlabs.com/blog/the-boring-work-of-maintaining-20-apps After 13 years running 22+ Android apps solo from Bangkok, I break down the unglamorous maintenance systems—Gradle conventions, CI pipelines, versioning discipline—that keep everything alive. · 6 min read Sun, 14 Jun 2026 00:00:00 GMT Android Kotlin CI/CD Solo Dev https://sudarshantechlabs.com/blog/stateflow-vs-livedata-22-apps https://sudarshantechlabs.com/blog/stateflow-vs-livedata-22-apps The switch from LiveData to StateFlow was not a trend decision. It was driven by a specific crash pattern. Here is what LiveData was getting wrong, what StateFlow changed, and what it costs. · 5 min read Fri, 12 Jun 2026 00:00:00 GMT Android Kotlin Architecture https://sudarshantechlabs.com/blog/android-compose-animations https://sudarshantechlabs.com/blog/android-compose-animations Most animation tutorials focus on what's possible. This one focuses on what's useful: the animations that make an app feel polished and responsive without becoming distracting or slowing users down. · 4 min read Sun, 07 Jun 2026 00:00:00 GMT Android Jetpack Compose UX Kotlin https://sudarshantechlabs.com/blog/android-interview-questions https://sudarshantechlabs.com/blog/android-interview-questions Senior Android interview questions test deep understanding, not syntax recall. Here are 15 hard questions covering architecture, concurrency, performance, and testing — with the answers that demonstrate senior-level thinking. · 5 min read Sat, 06 Jun 2026 00:00:00 GMT Android Career Kotlin Architecture https://sudarshantechlabs.com/blog/android-version-updates-strategy https://sudarshantechlabs.com/blog/android-version-updates-strategy Every Android release brings new APIs that improve your app. Supporting them while maintaining compatibility with older Android versions requires a clear strategy. Here's how to handle API level differences, use version checks correctly, and decide when to raise minSdk. · 4 min read Thu, 04 Jun 2026 00:00:00 GMT Android Kotlin Engineering https://sudarshantechlabs.com/blog/android-data-backup https://sudarshantechlabs.com/blog/android-data-backup Android Auto Backup silently backs up your app's data. When users restore to a new device, they expect their data. Here's how to configure backup correctly, what gets included, what should be excluded, and how to handle restore gracefully. · 4 min read Tue, 02 Jun 2026 00:00:00 GMT Android Data Kotlin UX https://sudarshantechlabs.com/blog/android-localization https://sudarshantechlabs.com/blog/android-localization Localization is one of the highest-ROI features for solo developers. Adding support for 5-10 languages can double your potential market. Here's how to implement localization correctly in an Android app with Compose. · 4 min read Sat, 30 May 2026 00:00:00 GMT Android Play Store Kotlin https://sudarshantechlabs.com/blog/kotlin-extension-functions https://sudarshantechlabs.com/blog/kotlin-extension-functions Extension functions are Kotlin's most addictive feature. Used well, they make APIs more expressive and reduce boilerplate. Used poorly, they scatter code and hide dependencies. Here are the patterns worth adopting and the anti-patterns worth avoiding. · 4 min read Thu, 28 May 2026 00:00:00 GMT Kotlin Android Engineering Patterns https://sudarshantechlabs.com/blog/writing-testable-android-code-viewmodels-fakes-and-coroutine-test-rules https://sudarshantechlabs.com/blog/writing-testable-android-code-viewmodels-fakes-and-coroutine-test-rules This post covers practical strategies for writing testable Android code using ViewModels, fakes, and coroutine test rules to improve maintainability and reduce flaky tests. · 4 min read Wed, 27 May 2026 00:00:00 GMT Android Kotlin Testing Coroutines https://sudarshantechlabs.com/blog/proguard-and-r8-in-android-shrinking-obfuscation-and-debugging-release-builds https://sudarshantechlabs.com/blog/proguard-and-r8-in-android-shrinking-obfuscation-and-debugging-release-builds In this article, we will discuss how to use ProGuard and R8 to shrink and obfuscate your Android app, and how to debug release builds. · 3 min read Tue, 26 May 2026 00:00:00 GMT Android Kotlin https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-java-threads-a-practical-comparison https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-java-threads-a-practical-comparison This post compares Kotlin Coroutines and Java Threads for Android concurrency, focusing on performance, simplicity, and real-world use cases to help you choose the right tool. · 4 min read Mon, 25 May 2026 00:00:00 GMT Android Kotlin Coroutines Performance https://sudarshantechlabs.com/blog/kotlin-coroutines-structured-concurrency-scopes-jobs-and-cancellation https://sudarshantechlabs.com/blog/kotlin-coroutines-structured-concurrency-scopes-jobs-and-cancellation Deep dive into Kotlin structured concurrency, exploring scopes, jobs, and cancellation techniques to build efficient, crash-free Android applications. · 4 min read Sun, 24 May 2026 00:00:00 GMT Android Kotlin Coroutines Performance https://sudarshantechlabs.com/blog/jetpack-compose-state-management-stateflow-vs-remember-vs-derivedstateof https://sudarshantechlabs.com/blog/jetpack-compose-state-management-stateflow-vs-remember-vs-derivedstateof This article compares StateFlow, remember, and derivedStateOf for state management in Jetpack Compose, highlighting their strengths and weaknesses, and providing code examples to demonstrate their usage. · 4 min read Sat, 23 May 2026 00:00:00 GMT Android Kotlin https://sudarshantechlabs.com/blog/jetpack-compose-state-management-deep-dive https://sudarshantechlabs.com/blog/jetpack-compose-state-management-deep-dive A practical guide to state management in Jetpack Compose with real code examples, showing how to choose the right pattern for your app's complexity and avoid common pitfalls that lead to bugs and maintenance headaches. · 5 min read Fri, 22 May 2026 00:00:00 GMT Android Kotlin Jetpack Compose Best Practices https://sudarshantechlabs.com/blog/my-android-release-checklist-zero-bad-releases-in-2-years https://sudarshantechlabs.com/blog/my-android-release-checklist-zero-bad-releases-in-2-years A detailed, battle-tested checklist for solo Android developers to ensure stable, secure, and high-performance releases. Covers automated testing, CI/CD, performance monitoring, and final sanity checks. · 5 min read Thu, 21 May 2026 00:00:00 GMT Android Kotlin Testing CI/CD https://sudarshantechlabs.com/blog/hilt-dependency-injection-android https://sudarshantechlabs.com/blog/hilt-dependency-injection-android A practical guide to Hilt DI in Android — how scopes work, how to structure modules, common mistakes, and how to write tests against Hilt-injected code without fighting the framework. · 6 min read Wed, 20 May 2026 00:00:00 GMT Android Kotlin Hilt Architecture Testing https://sudarshantechlabs.com/blog/room-database-best-practices-for-production-apps https://sudarshantechlabs.com/blog/room-database-best-practices-for-production-apps This post shares 7 critical Room Database practices I've refined over 13 years of QA and building 22+ apps at SudarshanTechLabs. Focused on avoiding crashes, data loss, and performance pitfalls in production. · 3 min read Wed, 20 May 2026 00:00:00 GMT Android Kotlin Architecture Data https://sudarshantechlabs.com/blog/claude-code-hooks-build-your-own-quality-gates https://sudarshantechlabs.com/blog/claude-code-hooks-build-your-own-quality-gates Learn how to use Claude Code's hook system to create automated quality gates for your Android projects, catching bugs and enforcing standards before code hits your repository. · 4 min read Tue, 19 May 2026 00:00:00 GMT Android Kotlin Claude Code Automation Best Practices https://sudarshantechlabs.com/blog/clean-architecture-in-android-use-cases-repositories-and-data-sources https://sudarshantechlabs.com/blog/clean-architecture-in-android-use-cases-repositories-and-data-sources A deep dive into decoupling business logic from frameworks using the Use Case, Repository, and Data Source pattern to build scalable Android apps. · 7 min read Mon, 18 May 2026 00:00:00 GMT Android Kotlin Architecture Best Practices https://sudarshantechlabs.com/blog/android-room-database-with-kotlin-flow-reactive-data-layer https://sudarshantechlabs.com/blog/android-room-database-with-kotlin-flow-reactive-data-layer Learn how to replace LiveData with Kotlin Flow in a Room‑based architecture, see real code, and make your Android app truly reactive. · 5 min read Sun, 17 May 2026 00:00:00 GMT Android Kotlin https://sudarshantechlabs.com/blog/android-background-processing https://sudarshantechlabs.com/blog/android-background-processing Android has multiple ways to run background work. Choosing wrong leads to work that gets killed by Doze mode, battery drain, or ANRs. Here's when to use WorkManager, coroutines, foreground services, and how each interacts with the system. · 4 min read Fri, 15 May 2026 00:00:00 GMT Android Coroutines Kotlin https://sudarshantechlabs.com/blog/android-app-startup-optimization-with-app-startup-library https://sudarshantechlabs.com/blog/android-app-startup-optimization-with-app-startup-library I dive into the App Startup library, show how to register components, measure impact, and integrate it with Coroutines and Hilt for a measurable 200‑ms jump in launch time. · 4 min read Thu, 14 May 2026 00:00:00 GMT Android Kotlin Performance Startup https://sudarshantechlabs.com/blog/android-app-modularization-feature-modules-build-speed-and-dynamic-delivery https://sudarshantechlabs.com/blog/android-app-modularization-feature-modules-build-speed-and-dynamic-delivery Learn how to split an Android app into feature modules, boost Gradle build times, and use Play Feature Delivery for on‑demand downloads—all with concrete Kotlin examples. · 5 min read Wed, 13 May 2026 00:00:00 GMT android kotlin performance best practices https://sudarshantechlabs.com/blog/jetpack-compose-performance https://sudarshantechlabs.com/blog/jetpack-compose-performance Compose is fast by design, but it's easy to write composables that recompose far more than necessary. Here's how to identify recomposition problems, understand why they happen, and fix them with the right patterns. · 4 min read Tue, 12 May 2026 00:00:00 GMT Android Jetpack Compose Performance Kotlin https://sudarshantechlabs.com/blog/android-architecture-lessons https://sudarshantechlabs.com/blog/android-architecture-lessons After shipping 20+ Android apps as a solo developer, I settled on MVVM with Clean Architecture, Hilt, and StateFlow. Here's why, and what I'd tell myself if I were starting over. · 3 min read Sat, 09 May 2026 00:00:00 GMT Android Architecture Kotlin Hilt https://sudarshantechlabs.com/blog/android-in-app-purchases https://sudarshantechlabs.com/blog/android-in-app-purchases Monetizing with in-app purchases requires more than integrating the Play Billing Library. Here's how to handle purchase flows, verify purchases securely, restore purchases, and avoid the common mistakes that cause rejected apps and failed payments. · 3 min read Sat, 09 May 2026 00:00:00 GMT Android Monetization Kotlin https://sudarshantechlabs.com/blog/room-advanced-patterns https://sudarshantechlabs.com/blog/room-advanced-patterns Basic Room is straightforward. Relations between entities, full-text search, complex queries, and custom type converters are where most developers hit walls. Here's how to handle the advanced cases correctly. · 4 min read Fri, 08 May 2026 00:00:00 GMT Android Data Kotlin Architecture https://sudarshantechlabs.com/blog/android-compose-navigation https://sudarshantechlabs.com/blog/android-compose-navigation Jetpack Compose Navigation replaces the Fragment back stack with a declarative nav graph. Here's how to set it up correctly, pass arguments between screens, handle deep links, and manage the back stack without common pitfalls. · 4 min read Thu, 07 May 2026 00:00:00 GMT Android Jetpack Compose Kotlin Architecture https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-rxjava-in-2026-choosing-the-right-tool-for-the-job https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-rxjava-in-2026-choosing-the-right-tool-for-the-job In this article, we'll compare Kotlin Coroutines and RxJava, two popular tools for handling asynchronous programming in Kotlin. We'll explore their strengths and weaknesses, and provide concrete examples to help you decide which tool is right for your next project. · 3 min read Wed, 06 May 2026 00:00:00 GMT Kotlin Coroutines https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-rxjava-in-2026-choosing-the-right-tool-for-modern-android-development https://sudarshantechlabs.com/blog/kotlin-coroutines-vs-rxjava-in-2026-choosing-the-right-tool-for-modern-android-development Learn when to use Kotlin Coroutines or RxJava in 2026 for Android apps, with code examples, performance benchmarks, and real-world use cases from a solo dev's perspective. · 3 min read Tue, 05 May 2026 00:00:00 GMT Android Kotlin Coroutines Jetpack Compose Architecture https://sudarshantechlabs.com/blog/designing-offlinefirst-android-apps-that-thrive-on-flaky-networks https://sudarshantechlabs.com/blog/designing-offlinefirst-android-apps-that-thrive-on-flaky-networks A step‑by‑step guide to building Android apps that stay functional when connectivity drops, using Jetpack Compose, Room, Kotlin Coroutines, and a clean offline‑first architecture. · 7 min read Mon, 04 May 2026 00:00:00 GMT Android Kotlin Architecture https://sudarshantechlabs.com/blog/automating-android-app-releases-with-github-actions-and-fastlane https://sudarshantechlabs.com/blog/automating-android-app-releases-with-github-actions-and-fastlane Learn how to streamline your Android app deployment pipeline using GitHub Actions and Fastlane, eliminating manual steps and reducing release errors. · 3 min read Sun, 03 May 2026 00:00:00 GMT Android CI/CD Automation Kotlin https://sudarshantechlabs.com/blog/android-architecture-decisions https://sudarshantechlabs.com/blog/android-architecture-decisions Not every architectural choice is equally important. After 22 apps, here are the decisions that compound positively — and the debates that waste your time. · 5 min read Fri, 01 May 2026 00:00:00 GMT Android Architecture Kotlin Solo Dev https://sudarshantechlabs.com/blog/how-i-built-22-android-apps-solo https://sudarshantechlabs.com/blog/how-i-built-22-android-apps-solo From zero to 22 live Play Store apps as a solo developer. The architecture decisions, tooling, and mental models that made it possible without burning out. · 4 min read Tue, 28 Apr 2026 00:00:00 GMT Android Solo Dev Kotlin Play Store Architecture https://sudarshantechlabs.com/blog/my-android-release-workflow https://sudarshantechlabs.com/blog/my-android-release-workflow A step-by-step breakdown of how I release Android apps to Google Play as a solo developer — versioning, signing, AAB builds, store listing, and the checklist that prevents me from shipping broken releases. · 6 min read Mon, 27 Apr 2026 00:00:00 GMT Android Play Store Release CI/CD Automation Kotlin https://sudarshantechlabs.com/blog/kotlin-sealed-classes-patterns https://sudarshantechlabs.com/blog/kotlin-sealed-classes-patterns Sealed classes are more than a fancy enum. Here are the patterns that make them indispensable for Android development: representing results, modeling state machines, handling events, and using sealed interfaces for better composition. · 5 min read Mon, 30 Mar 2026 00:00:00 GMT Kotlin Android Architecture Patterns https://sudarshantechlabs.com/blog/android-widgets-compose https://sudarshantechlabs.com/blog/android-widgets-compose Home screen widgets are one of the most underused retention tools in Android development. Glance brings Compose-like syntax to widget development. Here's how to build a functional widget from scratch. · 3 min read Sun, 29 Mar 2026 00:00:00 GMT Android Jetpack Compose Kotlin https://sudarshantechlabs.com/blog/android-offline-first https://sudarshantechlabs.com/blog/android-offline-first Offline-first means the app works without a network connection and syncs when one is available. It's the right architecture for most mobile apps but requires deliberate design. Here's how to build it with Room, WorkManager, and conflict resolution. · 4 min read Sat, 28 Mar 2026 00:00:00 GMT Android Architecture Data Kotlin https://sudarshantechlabs.com/blog/stateflow-advanced-patterns https://sudarshantechlabs.com/blog/stateflow-advanced-patterns Basic StateFlow usage is straightforward. The advanced patterns — combining flows, handling loading and error states, optimistic updates, and flow transformation — are where most devs hit walls. Here's how to do them correctly. · 4 min read Fri, 27 Mar 2026 00:00:00 GMT Kotlin Android Coroutines https://sudarshantechlabs.com/blog/kotlin-clean-architecture https://sudarshantechlabs.com/blog/kotlin-clean-architecture Clean Architecture is widely referenced and frequently misunderstood. Here's what it actually means for an Android app, what each layer is responsible for, and the concrete patterns that make it worth the structure. · 4 min read Thu, 26 Mar 2026 00:00:00 GMT Android Architecture Kotlin https://sudarshantechlabs.com/blog/android-deep-links https://sudarshantechlabs.com/blog/android-deep-links Deep links connect external content to specific screens in your app. Web links, push notifications, and app shortcuts all use them. Here's how to implement, test, and debug Android deep links correctly. · 3 min read Tue, 24 Mar 2026 00:00:00 GMT Android Kotlin Jetpack Compose https://sudarshantechlabs.com/blog/android-push-notifications https://sudarshantechlabs.com/blog/android-push-notifications Push notifications are one of the highest-retention tools available. Done wrong, they destroy engagement. Here's how to implement FCM notifications correctly in Android, handle notification permissions, and design a notification strategy that users actually want. · 4 min read Mon, 23 Mar 2026 00:00:00 GMT Android Firebase Kotlin https://sudarshantechlabs.com/blog/android-espresso-testing https://sudarshantechlabs.com/blog/android-espresso-testing Espresso is powerful but has sharp edges. Most guides show the happy path. Here's how to handle the real problems: async operations, Hilt integration, custom view matchers, and keeping tests from becoming a maintenance nightmare. · 3 min read Tue, 17 Mar 2026 00:00:00 GMT Android Testing Kotlin https://sudarshantechlabs.com/blog/mock-vs-fake-vs-stub https://sudarshantechlabs.com/blog/mock-vs-fake-vs-stub Mocks, fakes, stubs, and spies are test doubles — but they're not interchangeable. Using the wrong one leads to over-specified tests that break on refactoring or under-specified tests that miss bugs. Here's when to use each. · 5 min read Mon, 16 Mar 2026 00:00:00 GMT Testing Kotlin Best Practices https://sudarshantechlabs.com/blog/hilt-dependency-injection-testing https://sudarshantechlabs.com/blog/hilt-dependency-injection-testing Hilt makes dependency injection elegant in production code. In tests, it provides HiltAndroidRule and test modules that let you swap out real implementations for fakes. Here's how to use them correctly. · 3 min read Sun, 15 Mar 2026 00:00:00 GMT Android Architecture Testing Kotlin https://sudarshantechlabs.com/blog/kotlin-coroutines-testing https://sudarshantechlabs.com/blog/kotlin-coroutines-testing Coroutines and Flow add async complexity that makes testing tricky. Here's how to use TestCoroutineDispatcher, runTest, and Turbine to write fast, deterministic tests for all your coroutine-based code. · 4 min read Sat, 14 Mar 2026 00:00:00 GMT Kotlin Coroutines Testing Android https://sudarshantechlabs.com/blog/testing-compose-ui https://sudarshantechlabs.com/blog/testing-compose-ui Compose UI testing has a different mental model from View-based testing. Here's how to write reliable, maintainable Compose tests using ComposeTestRule, semantic matchers, and state-driven test patterns. · 3 min read Fri, 13 Mar 2026 00:00:00 GMT Android Jetpack Compose Testing Kotlin https://sudarshantechlabs.com/blog/database-testing-android-room https://sudarshantechlabs.com/blog/database-testing-android-room Room database logic is often undertested because developers don't know where to start. Here's how to write comprehensive tests for DAOs, migrations, and complex queries using JUnit and Room's testing utilities. · 4 min read Thu, 12 Mar 2026 00:00:00 GMT Android Data Kotlin Testing https://sudarshantechlabs.com/blog/test-driven-development-practical https://sudarshantechlabs.com/blog/test-driven-development-practical TDD is either praised as the only correct way to develop or dismissed as impractical. The reality is more nuanced. Here's how to apply TDD where it adds value in Android development without dogma. · 4 min read Mon, 09 Mar 2026 00:00:00 GMT Android Testing Kotlin Engineering https://sudarshantechlabs.com/blog/accessibility-testing-android https://sudarshantechlabs.com/blog/accessibility-testing-android Accessibility testing is often treated as optional. It's not — it's good engineering that serves millions of users with disabilities. Here's how to test and fix the most common accessibility issues in Android apps. · 4 min read Fri, 06 Mar 2026 00:00:00 GMT Android Testing Kotlin https://sudarshantechlabs.com/blog/security-testing-android https://sudarshantechlabs.com/blog/security-testing-android Security vulnerabilities in Android apps can expose user data, bypass authentication, and get your app removed from the Play Store. Here's a practical security testing checklist developers can run themselves. · 4 min read Wed, 04 Mar 2026 00:00:00 GMT Android Security Testing Kotlin https://sudarshantechlabs.com/blog/ci-cd-for-android-apps https://sudarshantechlabs.com/blog/ci-cd-for-android-apps Continuous integration for Android doesn't require a DevOps team. Here's a lean CI/CD setup that runs tests automatically, builds release APKs/AABs, and deploys to Play Store — all from GitHub Actions. · 4 min read Sun, 01 Mar 2026 00:00:00 GMT Android CI/CD Kotlin https://sudarshantechlabs.com/blog/automation-pyramid-real-example https://sudarshantechlabs.com/blog/automation-pyramid-real-example The automation testing pyramid is easy to draw on a whiteboard and hard to apply to a real codebase. Here's how it maps to an actual Android app with concrete test counts and tool choices. · 4 min read Thu, 26 Feb 2026 00:00:00 GMT Android Testing Automation Kotlin