Category: Engineering

The 8 most common mobile features testing problems

If you have only tested web applications so far and will soon be participating in a project related to mobile platforms, this article is for you.

Katarzyna Ignasiak

Flutter Unit Testing

Michał Nowak

Flutter Developer

Testing is often an overlooked part of app development. Unit tests are the most trivial testing software you can implement in your project anytime. Wanna learn how?

Engineering

#Engineering

#Flutter

How to scroll your bottom sheet differently with Flutter?

Marcin Hradowicz

Flutter Developer

Creating DraggableScrollableSheet with a header in Flutter.

Engineering

#Flutter

#Technology

How to catch ALL Flutter crashes?

Damian Kasperski

Flutter & Android Developer

Every mobile application must be able to detect crashes. But do ALL crashes get caught by your project?

Engineering

#Technology

Code Review Best Practices

Michał Nowak

Flutter Developer

A chunk of every developer's work is a code review, but are you doing it well?

Engineering

#3D

#Technology

A texture problem in a large Threejs scene.

Marcin Dekier

Frontend Developer

Check how easy it is to solve the problem with 4k textures in a big scene with Threejs.

Engineering

#Android

#iOS

#Flutter

Flutter - Splash Screen for Android and iOS

Marcin Hradowicz

Flutter Developer

Creating a splash screen for Android and iOS devices in Flutter using flutter_native_splash or native approaches.

Engineering

#Engineering

#Android

Does RecyclerView recycle its views? Or: How being doubtful made me learn more efficiently.

Oskar Rek

Android Developer

This article is dedicated to Android Developers who understand the concept of RecyclerView and multiple view types, who want to learn more efficient.

Introduction to Reactive Programming in Unity

Tomasz Lewandowski

iOS & Flutter & Game Developer

Bringing the reactive programming world to the Unity game engine with UniRx.

Engineering

#Flutter

A deep dive into riverpod vs bloc

Michał Nowak

Flutter Developer

Learn how riverpod’s dependency injection, state management and testing work on a well-known example of bloc.

Engineering

#Technology

Introduction to asynchronous programming in Unity

Tomasz Lewandowski

iOS & Flutter & Game Developer

Executing tasks over several update calls? Let's explore different approaches to asynchronous programming in Unity game engine.

Engineering

#Technology

E-commerce plugin in Google Analytics via Google Tag Manager

Kasia Bernad

FullStack Developer

Continuation of the complete guide how to connect google analytics with your website. In this article you will learn how to connect your website with E-commerce plugin and get access to powerful statistics.

Engineering

#Web

#Technology

How to implement Google Analytics via Google Tag Manager

Kasia Bernad

FullStack Developer

Complete guide how to connect google analytics with your website via Google Tag Manager. You will see step by step how you can integrate Google analytics and what you should do in your code but also in GA console and in GTM console.

Engineering

#QA

How to improve technical skills as a mobile app tester (Part 3)

Katarzyna Ignasiak

Kacper Jagiełło

iOS Developer

Getting to know the process of building a project through Xcode and exercises related to learning how to work with code to simulate data,

Engineering

#Technology

#Flutter

GitHub CI/CD for Flutter project

Marcin Hradowicz

Flutter Developer

Explanation of a structure of CI/CD on GitHub using Github Actions. Example of CI/CD for the Flutter project.

Engineering

#Flutter

Flutter Golden Testing with Bloc

Michał Nowak

Flutter Developer

Learn how to golden test your widgets that use Bloc as their state management system

Engineering

#Technology

2 most common issues with Google Analytics and Google Tag Manager

Kasia Bernad

FullStack Developer

Examples of troubleshooting for Google Analytics and Google Tag Manager. You will see what common cases you may come across and how to deal with them.

Engineering

#Maintenance

#Technology

What is mobile application maintenance? 4 types of mobile application maintenance

Amelia Kaczmarek

Business Development Representative

Maintenance is a crucial part of ensuring security, efficiency and reliability of an application. Check if you know all types of app maintenance.

Engineering

#Flutter

Golden testing with Flutter

Michał Nowak

Flutter Developer

Learn how to write your first golden tests with flutter and golden_toolkit.

Engineering

#Technology

Data Science in application development

Szymon Janowski

Data Scientist

Data Scientists with machine learning skills and a data-centric approach become critical team members in the application development process.

Engineering

#Android

#iOS

#Flutter

How to securely use Google Maps API Key in Android, iOS, or Flutter Project

Damian Kasperski

Flutter & Android Developer

This article explains how to keep API Keys secure in Android, iOS, and Flutter Projects and be able to use them in local development as well as on CI.

Engineering

#Web

#Frontend

#Technology

AppUnite & Strapi one-year relationship

Adam Siekierski

Fullstack Developer

Kacper Latuszewski

Backend Developer

For over a year, we've been working on the new AppUnite's website. For the main (and only) backend, we've chosen Strapi. How did it work with our frontend application? What were the advantages and what were the drawbacks of using Strapi? We’ve described it all in this article.

Engineering

#Frontend

#Web

Composition known as Slots in React

Szymon Hrabia

Frontend Developer

Did you know that Slots Pattern was invented by Vue Developers? Read this article and learn how to create reusable components in React with the usage of Vue Slots Pattern.

Engineering

#Technology

#Android

Integrating FireStick Cast into Android App with Chromecast

Jakub Adamczewski

Android Developer

Mateusz Kaźmierczak

Android Developer

Learn how to integrate FireStick Cast into Android App with Chromecast - tips and hints to implement straight away.

Engineering

#Technology

When a product requirement is not worth implementing

Jacek Marchwicki

Team Leader, Engineer, Android, Flutter

Life is full of compromises, so is software development - this article will help you make good decisions when an unforeseen problem occurs.

Let the force be with Livebook

Kacper Latuszewski

Backend Developer

How about playing with Elixir Livebook using Star Wars API?

Engineering

#Flutter

How to create smooth flutter tutorials

Michał Nowak

Flutter Developer

A step-by-step guide on how to create smooth flutter tutorials

Engineering

#QA

How to improve technical skills as a mobile app tester (Part 2)

Katarzyna Ignasiak

Learn how to use terminal commands and Git workflow on a real example.

Paycheck, events, idempotency and Elixir - what do they have in common?

Damian Romanow

Head of Engineering

Still wondering what paycheck, events, idempotency and Elixir have in common? Here’s a specific business scenario, which explains it all.

Engineering

#Technology

What the coastline paradox has in common with software development

Jacek Marchwicki

Team Leader, Engineer, Android, Flutter

Get to know, what is the coastline paradox and how software engineers can learn from it.

Engineering

#Technology

#Web

Make your system more predictable by using idempotent interfaces

Patryk Bąk

Elixir Developer

Let's analyze how a toggle button that turns activity on and off, can be designed and implemented on the server-side.

Engineering

#Technology

#Marketing

Can a 17-year-old work as a software developer?

Michał Nowak

Flutter Developer

I'd like to share with you my experience of working while still studying in High School.

Engineering

#QA

How to improve technical skills as a mobile app tester (Part 1)

Katarzyna Ignasiak

There are many paths to growth and skills that you can improve. But if you lack technical skills, it's worth knowing how to improve on your fundamentals.

Engineering

#Flutter

Style your flutter app with an AppTheme

Michał Nowak

Flutter Developer

Take a moment to boost your development skills with some quick solutions directly from one of our developers.

Engineering

#Technology

#Backend

How atom keys with JSON in Ecto can break your system

Patryk Bąk

Elixir Developer

If you use the map type in your Ecto schema, you definitely should read this article. It'll help you to avoid possible system failures.

How to become Junior Elixir Developer with no Elixir knowledge?

Artur Kasza

In this article, we’ll go through a tale of how I landed in my current role, Junior Elixir Developer, having marginal Elixir knowledge - from application to present days.

Engineering

#Backend

#Technology

Ecto.Query.preload/3 vs. Ecto.Repo.preload/3

Łukasz Pauszek

Which is better Ecto.Query.preload/3 or Ecto.Repo.preload/3? Read and find out what are the main differences.

Renaming column and table in database migrations with Elixir and PostgreSQL

Patryk Bąk

Elixir Developer

Step by step tutorial on what to do to guarantee zero downtime deployment, while deploying a new version of our application on more than one node.

Engineering

#QA

How to start your QA career?

Doris Bednarska

In this article, you will find advice that will bring you closer to getting your dream job in an area of Quality Assurance

Engineering

#QA

The 8 most common mobile features testing problems

Katarzyna Ignasiak

If you have only tested web applications so far and will soon be participating in a project related to mobile platforms, this article is for you.

Engineering

#Technology

Junior Dev's first days. From writing to releasing your first commercial code

Hubert Józwowiak

Hubert, our developer, uncovers some of the rules and steps that we, as AppUnite, focus on while building products for our clients and teaching new team members good practices.

Engineering

#Technology

#Backend

Modular software design - 10 common mistakes

Maciej Kaszubowski

Modular software design is all about dividing functionalities into independent pieces - modules. Learn what are the most common mistakes to avoid.

Engineering

#Web

#Backend

#Technology

Is Code Review harmful?

Maciej Kaszubowski

How does code review affect your team? Can it be harmful? This article lists some issues that can be related to code review and some ideas for improvement.

#Web

Concurrency and parallelism with Elixir and BEAM

Patryk Bąk

Elixir Developer

Patryk from our Backend team explains the differences between concurrency and parallelism, based on Elixir and BEAM.

#Web

Handling failures in background workers with Elixir and supervisors

Patryk Bąk

Elixir Developer

Elixir allows us to write systems that can run practically forever. Does that mean that we don't have to do anything to make our systems reliable?

Engineering

#Technology

#Strategy

Become a pi-shaped developer

Maciej Kaszubowski

T-shaped skills are a compromise between being a specialist and a generalist. It's considered a great way to grow. But is it the best way?

Engineering

#Technology

#Backend

Decomposing domain models based on lifecycles

Maciej Kaszubowski

There is no one golden solution to decomposing. As it is one of the hardest things to do, it is essential to know the various approaches. That is exactly what you'll find in this article.

#Web

Why shouldn't you use Elixir code in database migrations?

Patryk Bąk

Elixir Developer

Elixir code used in migrations can cause troubles when we decide to start up our system with an empty database. But we'll help you to deal with that!

Engineering

#Android

#Technology

RxJava Backpressure in practice

Filip Grześkowiak

The majority of us know of its existence, but only a few worked with it. It's time to get to know one of RxJava features more, Backpressure.

Engineering

#Technology

#Web

#Backend

How to migrate live production data

Patryk Bąk

Elixir Developer

Even simple migrations can be dangerous and when executed incorrectly can lead to errors and downtimes. Avoid these problems with our dev team tips.

Engineering

#Technology

#Strategy

Enabling constraints in software development

Maciej Kaszubowski

You can govern or enable constraints. Here, we'd like to describe a concept of enabling constraints and how to use them in development.

Engineering

#Backend

#Technology

Should you use database transactions for data consistency?

Patryk Bąk

Elixir Developer

In our systems, most business actions require changes across multiple contexts. How can we keep these contexts consistent?

Engineering

#Flutter

#Android

#iOS

Hybrid or Native - Which one best fits your product?

Piotr Bernad

Team Leader

Are you considering building a new mobile app and think which to choose native or hybrid? We pointed out the key areas to help you with the decision.

Engineering

#Flutter

How to localize your Flutter application

Michał Nowak

Flutter Developer

Sometimes, there’s a need for your app to translate into multiple languages. In flutter, it’s pretty simple to implement. Let’s start!

Engineering

#QA

Is it worth getting the ISTQB certification?

Doris Bednarska

Some time ago the Appunite QA team decided to take the ISTQB exam. What is the ISTQB exam and is it worth passing?

Engineering

#QA

Differences in creating testing strategies based on parameters typical of mobile applications

Katarzyna Ignasiak

Often testers have contact with mobile and web applications. It may seem that both types can be tested in the same way. But are you sure that's it?

Engineering

#Technology

#iOS

Combine Framework with UIKit

Fatih Kagan Emre

iOS Developer

A view of our iOS developer, Fatih on matter of combine framework with UIKit.

Engineering

#Technology

#iOS

The story of iOS CI at AppUnite (Part 2)

Szymon Mrozek

A continuation of our story about the Continuous Integration system that we are using at AppUnite to test and deploy our software every day.

Engineering

#Technology

#Elixir

#Web

How I changed the default structure of Elixir project to suit my preferences more

Tobiasz Małecki

Elixir Developer

Reasonable defaults can make your life easier but what reasonable means? How many benefits can the personalized default structure of Elixir project bring?

Engineering

#iOS

#Technology

The story of iOS CI at AppUnite (Part 1)

Szymon Mrozek

Our little story about CI infrastructure that we've been working on and which is used for building iOS applications.

Engineering

#Technology

#iOS

Things that you should know while localizing your iOS app

Lukasz Kasperek

iOS developer

In this article, Lukasz from our iOS team, shares his experience, best practices and what can go wrong with supporting multiple languages in your iOS app.

Engineering

#Technology

#iOS

How to test iOS apps with Combine, ReactiveSwift and RxSwift

Szymon Mrozek

In this article Szymon from our iOS team, presents ideas for testing in three different frameworks - Combine, ReactiveSwift and RxSwift.

Engineering

#Technology

How we spent 500 hours for writing tests and proved this to be a business value

Szymon Mrozek

Is implementation of the automated tests worth the time and most of all, what value for business does it generate? Look for the answers in this article!

Engineering

#Web

#Technology

Beyond Ruby on Rails

Emil Wojtaszek

AppUnite Co-founder

We reveal behind the scenes details of one of the most important decisions we faced in AppUnite and why it turned out as a huge win!

Engineering

#Technology

#Backend

Don't tell me how to test my software

Maciej Kaszubowski

Why do you write tests? Get to know the most important reasons and change your approach with an eye-opening article from AppUnite team member.

Engineering

#Android

#Web

#Technology

#iOS

How to keep dependencies up to date

Szymon Mrozek

AppUnite team resolves the problem of updating dependencies with a simple script running automatically. Easy solution for software development teams.

Engineering

#Technology

#Backend

Events and different kinds of coupling

Maciej Kaszubowski

Piece of meaningful advice for developers on when and why you should or shouldn't use events.

Engineering

#Technology

#iOS

How can your product benefit from the latest WWDC announcements?

Piotr Bernad

Team Leader

Developer’s perspective on Apple’s conference and upcoming opportunities for digital products.

Engineering

#Android

#Technology

The life of a Fragment in a ViewPager - pro tip for Android developers

Michał Saleniuk

Engineer, Android

Make your android app development easier with this pro tip from one of our Android development experts!

Engineering

#Android

#Technology

Android Quiz #2

Marcin Adamczewski

Android Developer

Welcome to the second part of the Android Quiz - the quiz for those who are interested in android software development 🎉

Engineering

#Android

#Technology

Android Quiz #1

Marcin Adamczewski

Android Developer

Marcin from our Android team prepared a form with a couple of questions about Android, Kotlin and Java to test your knowledge!

Engineering

#QA

10 most common bugs in mobile applications

Doris Bednarska

Doris, our QA specialist, takes a close look into most common bugs related to the basic elements of the app architecture.

Engineering

#Android

#Technology

The Decalogue of a Pro Media App

Marcin Adamczewski

Android Developer

Marcin, our Android dev, reveals 10 ancient commandments that will help you create a pro media application.

Engineering

#Flutter

#Technology

Our First Journey with Flutter

Paweł Rąbel

Flutter & Android developer

Pawel, our Android developer, shares his experience with Flutter - an open source cross-platform SDK from Google that allows to create apps for iOS and Android with single codebase.

Engineering

#Technology

#iOS

IOS Open Source Hell

Szymon Mrozek

In this article Szymon, our iOS developer, takes a look at open source problems of modern iOS applications and tries to find a simple rules of thumb for each of them.

Engineering

#iOS

#Technology

MVVM - You're Doing it Wrong

Damian Kolasinski

In this article, I write about a slightly different approach to MVVM, one that overcomes classic implementation problems.

Engineering

#Technology

Open sourcing Imager - yet another image processing service

Łukasz Niemier

Release announcement of Imager - our brand new image processing proxy service. Written in Elixir, it provides easy solution to thumbnailing problem by using URL query string.

Engineering

#Technology

#Backend

The Big Ideas

Maciej Kaszubowski

If you look at the history of Computer Science, you can see that there are few big ideas that keep emerging. Is there a lesson that we may learn from this?

Engineering

#iOS

A week before iOS 12

Piotr Bernad

Team Leader

Apple is going to release iOS 12 next week. What does it mean for iOS developers is that they need to start supporting newer version of iOS?

Engineering

#Technology

#iOS

Building Dependencies on iOS with Carthage

Szymon Mrozek

In this article I want to share my experience with building dependencies by using Carthage.

Engineering

#Android

#Technology

Kotlin Delegates in Android - Real Life Examples

Marcin Adamczewski

Android Developer

Real life example of using Kotlin delegate in Android. A tricky way to overcome final class inheritance.

Engineering

#Technology

#Backend

Migrate from legacy FCM to FCM HTTP v1

Bartosz Górka

In this article, I will show you how easy is to migrate from Legacy Firebase Cloud Messaging to new FCM HTTP v1 service.

Engineering

#Android

#Technology

#iOS

How to test User Interface on iOS and Android

Andrzej Wyduba

Head of Operations

In AppUnite we put emphasis not only on quality of code, but on quality of the product as well.

Engineering

#Android

#Technology

ConstraintLayout 1.1.2 performance test

Piotr Mądry

Software Engineer

Speculations about ContraintLayout have been coming back all the time since it saw the light of the day. The view group, praised by creators (Google), which quickly gained a lot of interest among software developers is described as “working one” and one of the most efficient layouts. But is it true?

Engineering

#Technology

#Backend

Quick look at new :gen_server handle_continue callback

Tobiasz Małecki

Elixir Developer

Erlang OTP 21.0 has been released today and I’m going to describe how new :gen_server handle_continue callback works.