Konstantin Mikheev's programming blog

How to live better without Dependency Injection

Thu, 09 Jan 2020 00:00:00 +0000

(I’ve just learned Dagger, what is wrong? Imagine my anxiety now, I am NOT happy seeing an article with this title! I hope that the author does not have any idea!)

Five years have passed since my first Dagger 2 article. It is time to write the last one. We do not need Dagger anymore. In fact, we didn’t even need it in the first place.

Impostor Syndrome for Software Developers

Wed, 08 Jan 2020 00:00:00 +0000

I often see recommendations on Twitter about how to deal with impostor syndrome. It is almost always something like “just convince yourself that you’re not an impostor”. It is hard to do if you have a conscience.

Immutable data is the main key to simple code

Tue, 06 Feb 2018 00:00:00 +0000

Use immutable data like a pro.

The Code Simplicity Chart (c)

Tue, 21 Nov 2017 00:00:00 +0000

How to understand if your code is simple or complex.

Is programming actually math?

Mon, 24 Apr 2017 00:00:00 +0000

The main difference between programming and math is…

When to NOT use RxJava

Tue, 10 Jan 2017 00:00:00 +0000

RxJava is very powerful. It solves a great amount of tasks easily. But using it in wrong places can turn any codebase into an unmaintainable and buggy mess. Here I will try to explain where RxJava can help and in which cases it is better to avoid using it.

Managing state reactive way

Sun, 25 Dec 2016 00:00:00 +0000

RxJava nice and easily covers our multithreading needs. But it provides only a half of the solution. While we can compose functions with RxJava, there is no safe way we can have our state (field variables) handled without race conditions and low-level synchronization blocks.

This article describes a simple and practical way for solving multithreading issues that appear even when we’re using such advanced technology as RxJava.

Why lambdas matter (even on Android)

Wed, 06 Jan 2016 00:00:00 +0000

A little knowledge exchange from an active lambdas user.

Term: Lambda is an anonymous function.

RxJava magic (finally) goes away

Tue, 08 Dec 2015 00:00:00 +0000

There is too much “magic” inside of RxJava.

Docs and tutorials are either too shallow or too complicated.

Here is the middle ground that is essential to know before playing with RxJava.

In these tests we will take each RxJava part… apart and explore how exactly it works.

How to have 100% code coverage with tests and be sane

Sat, 19 Sep 2015 00:00:00 +0000

In this article I will discuss unit testing approaches, show a quick and elegant solution to unit tests complexity, benefits of having 100% code coverage with tests and how achieve it easily.

Introduction to Model View Presenter on Android

Mon, 23 Mar 2015 00:00:00 +0000

This article is a step-by-step introduction to MVP on Android, from a simplest possible example to best practices. The article also introduces a new library that makes MVP on Android extremely simple.

Snorkeling with Dagger 2

Sun, 01 Feb 2015 00:00:00 +0000

Dagger is a popular library for Java, it makes writing code much easier and more structured. In this article I will describe how can we benefit of using it, show some simple use cases and explore the generated code. As a bonus, I will show an advanced trick that makes Dagger 2 much more flexible.