Kotlin Coroutines – why should I care about structured concurrency?

In this blog post we’re going to dive into some small examples of how to exploit Kotlin Coroutines’ power regarding concurrent decomposition and, as small sprinkles on top, we’ll look at a nice trick to show how you can exploit the bounded nature of coroutines to your favor; and for those interested I’ll present some […]

The hidden information your README.md can reveal about your team

How much we care about knowledge transfer   I think this is the most obvious point, but also not one that’s very specific to a readme file. There are many other tools for knowledge transfer like company wikis, emails and Slack. Still the presence and content of a readme can tell you how much your […]

Suspension not detention: launching activities without callback headaches

There’s a solution for that: wrapping activity launch code in suspending functions. That dramatically increases readability and maintainability of your code. Let me show you!   How it looks   In my opinion, business logic in code should be so simple, non-developers can (almost) read it:   suspend fun runTakePictureFlow() {     if (!permissionManager.check(CAMERA)) {        if […]

Property Drilling: when best practices become best problems in Declarative UI (Compose, Swift UI)

What is property drilling?   So to start with, look at that small piece of code:   fun Screen(viewModel: ViewModel) {   Text(text = viewModel.title)   Text(text = viewModel.description)   viewModel.entries.forEach { entry ->       Row(onClick = { viewModel.onEntryClick(entry) }) {           Text(text = entry.title)           Text(text = entry.description)           Button(onClick = { viewModel.onDeleteEntryClick(entry) })       }   } }   This is indeed […]

The struggle with breaking tests and hard to change code: Test API to the rescue!

TL;DR: Create a test API: by comparatively small effort you can create a test API that abstracts away technical implementation details so your tests are easier to understand and change. As the coupling between the test and production code becomes less, you’ll notice that production code becomes way easier to change. This is a boost […]