Since React Hooks have been introduced, code can be much easier extracted from your components. Common business logic, listeners, state management or data fetching can be moved to custom hooks. Finally, hooks can and need to be tested. That will be covered in this article. I explain with an app…

There are different ways to test your React Native app, where each way targets a specific use case. You can test a single part (unit test) or a collection of units, that act together (integration test). …

In 2018, I was writing End-to-End testing in React Native. Now, in 2023, what has changed? Have the frameworks improved, matured, became more stable or is there a new player on the field? Use the code “reime005-medium-free” to get a free version of my Ultimate React Native Testing Guide on…

Something you hear quite often, but is it true? In software engineering and app development, testing is an integral part. Some teams do it, some only the bare minimum, others nothing. …

GraphQL has become a new alternative for developing APIs other than the common REST approach. Being more lightweight by selectively requesting fields (querying) instead of transmitting unnecessary data just makes sense. …

Contexts are common in most programming languages or frameworks. They are mostly used to contain and share specific information or functionality across different parts of an application. Sometimes they are used to inject behavior depending on the use case, like testing or production. …

Many mobile apps have a unique flow of experience that the user has to go through. A tutorial or onboarding screen can help with explaining the steps that the user has to do in the app. I show roughly how I created such a screen in Flutter. …

Animations can make already good apps look and feel even better. It can improve the user experience by making actions feel more natural or living. One use case of animations are modals or pop ups, that dynamically display content on the screen. …

When creating a scroll view for a mobile app, a common principle could be to have an image on the very top of the list. This could be to showcase the content of the page. …