Putting composables into an appropriate structure — In the previous article, the basics of navigation with NavHost and NavController have been described. However, with more complex apps, the app's navigation graph could get messy and lead to redundant mistakes in code. The app structure can make it much more testable, scalable, and easier to fix. Go here…

Testing of the MVI/MVVM architecture built with flows made easy — As it is common now, the correct architecture should contain decoupled layers. Inter-layer communication between them is done by streams, or in our case, flows, in Android. To make our solutions foolproof, we should create tests around every component, and the ViewModel is no exception. The more channels the ViewModel…

The story contains the creation of data set, forming of an algorithm and the building of an Android app for fall detection. — The first part of the series is about starting the whole project and giving a bit of the background. Feel free to skip to the next part if you are interested in the technicalities. 💻 How did I get to it? I was finishing my biomedical bachelor's degree in 2018-2019. Firstly we had to get 3-month…

Avoid being blocked by unmatched input to the mock with fake and leverage power of mock when needed — While building your app, you implement the database, API client and other third-party solutions. If you follow the proper structure, you end up with abstractions for every data provider you use. A side-effect of abstractions is easier testability of all the components. Everything is done as should be and writing…

The accompanist compose animations got deprecated and migrated to the standard compose navigation library — Till recently, the navigation library did not provide support for the animations. If you wanted animations, you had to do them mostly independently or adopt an experimental accompanist library. It has changed with the update to 2.7.x and higher of the navigation library. For those, who are here to migrate…

Changes in PackageManager in Android Tiramisu — Android 11 restricted querying packages on the phone. The app can search only for individual applications, which can be declared within the manifest. To make available all the apps, the manifest must contain special permission, which is then subject to control at the Google Play store. With Android 13 were…

The hilt is a dependency injection (DI) framework based on Dagger. So, anyone who used Dagger in the past will have an easy time learning to use Hilt for Android development. For an introduction to DI and other concepts, I recommend reading my previous…

How to understand fancy terminology around dependency injection — In this article, I want to give insight into dependency injection. The article will explain the dependency injection, inversion of control, composition and separation of concerns. Do not expect any extensive academic terms. This is a simplified version, which I would find helpful in the past. Little heads up. It…

How to create simple extensible settings screen in your app — In previous implementations, you can find out the XML definition of the settings. The XML file is inflated by the appropriate fragment, which creates a visual representation of the settings. The handling of preferences comes out of the box and saves tons of time. With the arrival of the Jetpack…