When developing with any platform, the existence of libraries is assumed. This is to delegate common tasks to out project code, in order to reduce development time and avoid common pitfalls already solved by other developers. Kotlin Multiplatform(KMM) is no different. Available libraries Since Kotlin is becoming more popular among Android/JVM developers, one might expect […]
Category: Architecture
In order to express their ideas about a project’s architecture, developers can utilise the UML sequence diagrams. There are different ways to create and publish these diagrams, ranging from paid apps(8$/month, 100$) to free Confluence apps. It can be a formidable task to choose from all of these options. As a programmer, a good solution […]
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Callback styles for async tasks
For asynchronous tasks, the actions on completion need to be handled via a callback. There are different patterns to achieve this, with each having their own benefits and shortcomings. Interfaces One of the oldest callback styles are interfaces or anonymous classes. They are used to great effect in Android. As an example, with okhttp library, […]
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Logging in a Java library
It can be useful to emit logs in a library. When doing so, one needs to consider when to emit, how to filter and who is responsible for printing/handling the logs. Correct logging should also be tested. When to log There are different reasons to emit a message, for instance on important events, undefined behaviour […]
One of the best things about MVVM is the use of separation of concerns principle which by design enables testing of each component in isolation. View, ViewModel and Model are all separated and thus easily testable. When thinking of testing, then unit testing comes to mind first and for that mocking of dependencies is required. […]
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Android App Architecture, Part 1
Not being familiar with modern Android App architecture and coming from the ViewController world, it is confusing jumping into the recommended MVVM architecture. There are also some parts of the official guide that are left for the reader to figure out, so I will write about my experience with implementing it in my repo browser […]
In High-Mobility, we have separate libraries for Android and Linux. For each of these we use native code that handles transport protocol. After implementing JNI for both of the platforms, we realized it would make sense to use a shared JNI module instead. Android setup At first we started developing for Android, and went for […]