Articles

Escape Prop-Drilling and Event-Drilling without Losing Your Architecture.

Learn how to coordinate multiple independent Git repositories using submodules under a centralized binder repository.

Android moves to a 16 KB page size. See why it matters for performance and how to prepare your app for the Nov. 1, 2025 deadline.

Jetpack Compose side-effects guide: lifecycle timing, keys, coroutines, best practices, ViewModel-first patterns.

A guide to understanding Kotlin Flows. Learn Hot vs. Cold Flows, StateFlow, coroutines, and how to write clean, modern, async code.

Master the Holder pattern in Android/Kotlin: flexible alternative to Kotlin object singletons, cleaner DI, shared StateFlow & token control.

❝ Also on Droidcon Global

In this article, I demystify the expect/actual mechanism, compare it to interfaces, and provide clear, practical examples to help you make the most of it. Whether you're new to KMP or refining your skills, this guide will give you a solid understanding of one of its core concepts.

Write cleaner, reusable Kotlin code by mastering the Decorator Pattern and embracing the Open/Closed Principle.

Builder Pattern and Factory Pattern in Kotlin, Android. Learn how Builder and Factory work for Kotlin, but also for Java and other OO Languages.

The concise guide to "active" and "passive" UI mindset. The evolution of mobile UI for both iOS and Android (with focus on Android)

❝ Also on Droidcon Global

Boost Android/KMP library testing! Learn Maven Local & Composite Builds for fast local iteration & validation before publishing.

❝ Also on Droidcon Global

Reanimator: Automatic StateFlow saving for Android & KMP ViewModels. Simplifies process death & MVI transient state handling.

Discover how Kotlin's runCatching transforms error handling with cleaner code, chaining capabilities, and functional programming principles.

❝ Also on Droidcon Global

Learn how to seamlessly integrate native Swift code into your Kotlin Compose Multiplatform apps with a clear, step-by-step guide!

❝ Also on Droidcon Global

Master how Kotlin inline reified deals with Type Erasure, and explore noinline and crossinline modifiers.

❝ Also on Droidcon Global

Master Kotlin Guards in when statements for cleaner, expressive code. Kotlin 2.1.0 features, Kotlin Guard conditions, and fail-fast logic.

Learn the key differences between Interfaces and Abstract Classes in Java and Kotlin with practical examples and clear explanations.

❝ Also on Droidcon Global

SOLID...ify and transform your Android codebase! Master Clean Architecture with practical Use Cases, smart Managers & bulletproof multi-provider systems.

❝ Also on Droidcon Global

Learn how to block accidental navigation during critical tasks with a custom loading indicator in Jetpack Compose for robust Android apps.

A Deep Dive on SOLID Principles published in ITNEXT.  The only SOLID read you will ever need:

• Single Responsibility (SRP)
• Open-Closed (OCP)
• Liskov Substitution (LSP)
• Interface Segregation (ISP)
• Dependency Inversion (DIP)

Compare Android's Garbage Collection vs. iOS's ARC for optimal memory management in mobile app development. Discover key differences.

❝ Also on Droidcon Global

A practical guide to mocking network responses in Kotlin. Make your tests faster and more reliable using MockK, with real-world examples

❝ Also on Droidcon Global

Let’s gaze inside a Kotlin Coroutine structure and see the Finite State Machine (FSM) inside it. Suspension mechanics revealed.

❝ Also on Droidcon Global

Did you ever need to pass irrelevant parameters through multiple composable functions just to forward a parameter down the composable tree somewhere? CompositionLocals provide the solution to that problem.

❝ Also on Droidcon Global

Learn coroutine communication patterns, from basic producer-consumer to advanced fan-in/fan-out scenarios, to ui events in Android development.

❝ Also on Droidcon Global

A comprehensive script that automates project cleanup, handling both single and multi-module projects with support for macOS, Linux, and Windows.

❝ Also on Droidcon Global

From God Activities to MVI: A journey through Android's architectural evolution, showing how each pattern solved its predecessor's limitations.

If the system kills your app in the background and later re-creates it, you often need to restore some temporary data (ephemeral state) without storing it permanently on disk. In this article, we’ll show two approaches:

❝ Also on Droidcon Global

As Android developers, we often face the challenge of managing state across our applications. Whether it’s user authentication, theme preferences, or app-wide settings, having a reliable way to handle global state is crucial.

You build a library and want to test it locally with an actual project before publishing online? Check out my new guide to learn how to publish your Android/Kotlin/Java library to a local Maven repository on your own machine for instant testing with sample apps.

Struggling to handle one-time events in Jetpack Compose? Discover why Channels beat SharedFlow for ephemeral triggers, and how to ensure your UI reacts just once, every time. 

Check out my short guide on how to seamlessly bring StateFlow’s thread-safe updates into Compose’s classic State handling. Learn how a simple extension function can give you the best of both worlds—powerful concurrency features and the elegance of delegated state in your Compose UI!

The Android Secure Persist Library is a powerful Kotlin library designed to provide secure and efficient storage of preferences and raw data encryption for Android applications, all with zero configuration.

NavHelper library to streamline type-safe Parcelable data passing in Jetpack Compose's new Navigation, showcasing the power and flexibility of the type safety introduced at Google I/O '24. 

Create full-featured RecyclerView using LazyColumn with minimal code and effort thanks to Jetpack Compose!

What is Android Context? What is the Android Manifest? How do they relate to the Android System?

Providing basic understanding behind a regression approach to a classification problem in DQNs action values.

Understanding the basic concepts behind Reinforcement Learning using value-based methods.

An easy to absorb introduction to Machine Learning and Neural Networks with YouTube video content

There is bizarre behavior in Android when you combine a “WebView” together with “AdMob”. Read my solution...

So what is AMP? How will it change our website? Is it any useful? What is the architecture behind it? How can I build an AMP website?

All Java newbies at some point looked for some clear and direct explanation over Static variables. Here it is!