Android development tutorials. Bigger content articles that aim to help one achieve or learn something in a guided/step by step pace.
Why Property Delegates Often Go Unnoticed Most Kotlin developers know lazy — it’s everywhere. You see it in Android ViewModels, dependency injection setups, and library code. But the standard library ships two more property delegates that are surprisingly powerful and almost never discussed: Delegates.observable and Delegates.vetoable. If you’ve been wiring up manual setters or using […]
Making Your Wallpaper Respond to Real-World Weather A beautiful sky gradient is a good start, but what makes Seasons Live Wallpaper feel special is that it reacts to the actual weather outside your window. Rain particles drift down when it’s raining. Snow accumulates during winter storms. Fog creeps in on humid mornings. Lightning flashes light
The Hidden Cost of Eager Collections Kotlin’s collection functions — map, filter, flatMap — are a joy to use. But they share one characteristic that can quietly hurt your app: they’re eager. Each call processes the entire source and allocates a brand new intermediate list. Chain three or four of them on a list of
What Skills Are in Claude Code Once you’ve used Claude Code for a while you’ll notice you repeat the same prompts. “Create a new feature screen with a ViewModel and UiState.” “Add a Room entity and DAO for this model.” “Write a Hilt module that provides this repository.” These are perfect candidates for skills —
The Part of Android Development “Nobody Enjoys” :P Writing tests and debugging are the two parts of Android development where most developers lose the most time. Tests feel like writing code twice, and debugging often means staring at a stack trace while trying to hold an entire call graph in your head. Claude Code doesn’t
A Familiar But Slightly Awkward Pattern If you’ve written Kotlin for a while, you’ve almost certainly written code like this: fun getActiveUsers(users: List): List { val result = mutableListOf() for (user in users) { if (user.isActive) result.add(user) if (user.isPremium) result.add(user.copy(label = “Premium”)) } return result.toList() // convert back to read-only } The pattern works, but
The Problem With Try-Catch Everywhere Exception handling in Kotlin (and Java before it) has always had a composability problem. Once you introduce a try-catch block, you break the expression-oriented flow of your code. You can’t easily chain operations, return from them in one line, or pass the “success or failure” result to another function without
Why Claude Code Is Worth Setting Up Properly for Android If you’ve tried using Claude Code for Android development without any configuration, you’ve probably found it helpful but inconsistent. It might suggest Retrofit when your project uses Ktor, generate Java when you want Kotlin, or miss your architectural conventions entirely. The difference between a generic
The Old Way: Manual Time Measurement If you’ve ever benchmarked a function in Kotlin or Android, you’ve probably written something like this: val start = System.currentTimeMillis() val result = doExpensiveWork() val elapsed = System.currentTimeMillis() – start Log.d(“Perf”, “doExpensiveWork took ${elapsed}ms, result=$result”) It works, but it’s noisy. You need three lines just to time one call,
AI-assisted development has moved well beyond autocomplete. Claude Code — Anthropic’s agentic coding tool — can read your project, reason about your architecture, write Kotlin, generate tests, and even help you debug Gradle. But like any powerful tool, it rewards those who know how to use it well. This guide walks you through everything you
One of the most satisfying things to code is a particle system. Snowflakes, falling leaves, fireflies — simple physics, beautiful results. Here’s how Seasons Live Wallpaper handles its snow, and how you can build something similar. The Particle Data Class data class Snowflake( var x: Float, var y: Float, val radius: Float, // visual size
Have you migrated or want to migrate to the SignIn with Google that uses CredentialsManager and it’s not workin? Well, in my experience, when I tried recently to integrate this in a new project I faced 2 major issues that consumed some of my time. First Issue The first one was the lack of some
On Android an Entry or EditText as it is called in Android Native, has by default a bottom border line when you tap inside the field. On iOS this line doesn’t exist, so if you want to have the same design on both platforms, you will have to create a custom render for iOS and
In this article I would like to emphasise over a few options that we have when working with data structure and more precisely with collections in a mutable and immutable fashion. So let’s start with a few of them and see their mutability state. But first, what makes a list mutable or immutable? Immutable Collections
