Top 30 Kotlin Interview Questions — From Basics to Coroutines
The 30 most commonly asked Kotlin interview questions with clear answers and code examples. Covers basics (val/var, null safety, string interpolation)...
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ANDROID 16 IS QUIET — BUT ONE OF THE MOST IMPORTANT RELEASES FOR DEVELOPERS
Android 16 (API level 36) is less about new UI features and more about making app behavior predictable and reliable. It introduces refinements in navi...
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Android ViewBinding vs DataBinding
Both solve findViewById crashes, but they're very different. ViewBinding is lightweight with type-safe View access. DataBinding lets you bind data dir...
Android Custom Views
When built-in Views aren't enough, build your own. This guide covers three approaches (extend, compound, fully custom), the @JvmOverloads constructor ...
Android Material Design Components
Material Components give you production-quality, themed widgets out of the box. This guide covers setup with Material3 theme, TopAppBar with collapsin...
Android ConstraintLayout
ConstraintLayout is the most powerful and recommended layout in Android — flat hierarchy, single measure pass, no nesting needed. This guide cov...
Android RecyclerView
RecyclerView is the most important UI component in Android. This guide covers why recycling matters, complete setup with ListAdapter and DiffUtil, Vie...
Android Views and ViewGroups
Every pixel on an Android screen is drawn by a View, and every View lives inside a ViewGroup. This guide covers the View hierarchy, essential Views (T...
Android Gradle Build System
Gradle turns your Kotlin code into an installable APK. This guide covers the complete project structure, settings.gradle.kts, version catalogs (libs.v...
Android Resources
Android's resource system makes your app work across thousands of devices — different sizes, languages, densities, and themes. This guide covers...
AndroidManifest.xml
The manifest is your app's declaration file — read by the system before any code runs. This guide covers the complete manifest structure, permis...
Android Context Explained
Context is the most used and most misunderstood class in Android. Using the wrong one causes memory leaks, theme bugs, and crashes. This guide covers ...
Android Intents
Intents are Android's messaging system — connecting Activities, Services, and apps. This guide covers explicit vs implicit Intents, passing data...
Android Fragment Lifecycle — Two Lifecycles, Every Callback, and the Mistakes That Cause Crashes
Fragments have two lifecycles — the Fragment itself and its View — and confusing them causes memory leaks, crashes, and duplicate observat...
