Android & Kotlin Technical Articles

If you use Jetpack Room, every @Dao interface turns into a full database implementation. If you use Hilt, every @Inject constructor gets wired into a dependency graph. If you use Moshi, every @JsonClass generates a JSON…

Every Android developer has overridden onCreate(), onResume(), and onDestroy(). You write your initialization logic, register listeners, and clean up resources, trusting that the framework will call these methods at the…

Android's WorkManager has become the recommended solution for persistent, deferrable background work. Unlike transient background operations that live and die with your app process, WorkManager guarantees that enqueued…

Modern Android applications commonly adopt multi layered architectures such as MVVM or MVI, where data flows through distinct layers: a data source, a repository, and a ViewModel (or presentation layer). Each layer has…

Kotlin's internal visibility modifier provides a useful mechanism for hiding implementation details within a module while exposing a clean public API. But as codebases grow and libraries modularize, a tension emerges:…

Landscapist Core is a standalone image loading engine built from scratch for Kotlin Multiplatform. Unlike Landscapist's wrappers around Coil, Glide, and Fresco, Landscapist Core handles fetching, caching, decoding, and…

Android's ViewModel has become an essential component of modern Android development, providing a lifecycle-aware container for UI-related data that survives configuration changes. While the API appears simple on the…

Making REST API calls has been a fundamental requirement in Android development, yet the complexity of managing HTTP requests, serialization, error handling, and thread management has long been a persistent challenge.…

In Jetpack Compose, Crossfade provides a simple and declarative way to animate the transition between two different UI states. When the targetState passed to it changes, it smoothly fades out the old content while…

The derivedStateOf API in Jetpack Compose provides a convenient mechanism for creating memoized state that automatically updates when its underlying dependencies change. While essential for performance optimization in…

The SlotTable is the in-memory data structure that represents the UI tree of a Jetpack Compose application. Instead of a traditional tree of objects, it's a highly optimized, flat structure designed for extremely fast…

Kotlin provides a very useful delegate: lazy. The lazy function creates a property whose value is computed only on its first access and then cached for all subsequent calls. While the public API is super simple, a deep…

In the Jetpack Compose ecosystem, state is typically consumed synchronously. A composable function reads a State<T> object during recomposition to get its current value. However, many modern Android architectures are…