Disclaimer: I know that the described pattern has many names, and MVI is one of them. But one of the things to learn from this article is that you can name your components whatever until you do break the app logic. In mobile development, it is impossible to live without…

This article presumes that you already know how to test widgets with Flutter. Check out this article if you don’t https://medium.com/@ariedov/testing-widgets-with-flutter-basics-9b40ccc488bf. The code of the project is available here: https://github.com/ariedov/flutter_are_you_mansplaining Testing a material widget. To be able to test Material widgets you have to wrap them with Directionality for the default text directions and…

It’s not a secret that unit testing is allowing you to develop quality applications faster, but it’s not always easy to remove logic from UI. An excellent way to deal with this would be testing the UI in a unit-testing fashion. In Android, we have Roboelectric — which is super…

There is a utopian idea that followed much of UI developers for years: write once — run everywhere. That’s what Java promised 25 years ago, and what cross-platform mobile frameworks promise now. Xamarin is one of those frameworks. It is relatively old — founded in 2011, just three years after…

I’m doing Android development for a while now. There is a lot of struggles that every mobile developer experiences in their everyday life, but one is constant — build times. When the application is getting larger, it requires more time on my machine to build, and it is getting bigger…

8-го марта моя подруга Алиса учавствовала в марше за права женщин. Там ее облили зеленкой. Мы встретились с ней вскоре после этого и она в подробностях рассказала мне эту одновременно неприятную и вдохновляющую историю, на что я спросил "А где, собственно, ущемляются права женщин? Вроде ж нормально все.". …

Kotlin, unlike Java, allows you to create functions without classes, which can be used as utilities or helpers for your application. I must notice that each function starts with fun keyword, so that’s how you know that programming on Kotlin is fun. There is some: fun getFour(): Int = 2…

So, there is Kotlin, the new and powerful language that can compile to the byte-code, just like Java is. If you’re reading this article, then you probably know what bytecode is, and why it is used by Java and a lot of other languages that the JVM supports. The Java Era When you…