Gson is outdated a bit with the last commit done quite some time ago. We also had implemented the Moshi library in our Gradle dependencies and these are the 2 reasons why we decided to move away from GSON.
Continue reading “Migration from Moshi to Gson – small tricky parts”Category: Android
Publishing a private Android library
Recently I played around with a library that is used in multiple projects. This library has a huge list of dependencies like: coroutines, rxjava, navigation library from Google, material library, custom edit texts that come from 3rd party libraries and many more. Basically this library has also a rich set of screens available to the users that open given certain conditions. But our issues was bigger.
Continue reading “Publishing a private Android library”When can RxJava become a pain in the ass?
The idea of this post is really simple. If you don’t know the details around RxJava – don’t implement it in a project which has the idea of earning money.
Continue reading “When can RxJava become a pain in the ass?”Detecting network change with ConnectivityManager & RxJava
Wonder how to check the network connectivity in Android? There is a new API that you can use but there aren’t many tutorials how to do it. Here is our simple way:
Continue reading “Detecting network change with ConnectivityManager & RxJava”Android Oauth2 token refresh mechanism – OkHttp vs RxJava layering
The RxJava approach
I am currently working on an app where the devs before me took this strange decision in regard to the refresh token mechanism – have a single entry point of the app which is called every time whenever you need to have a fresh token. What I mean is this:
Continue reading “Android Oauth2 token refresh mechanism – OkHttp vs RxJava layering”Execute an RxJava observable only once in a given time period
Problem
Each Android app has an authentication mechanism or at least most of them do. What this auth mechanism does is that it refreshes an access token using a refresh token every N minutes. In our case these N minutes are 7. And now the question is: How do I implement this?
Continue reading “Execute an RxJava observable only once in a given time period”Tricky parts when implementing unit tests for Android in Kotlin
Testing data classes in Kotlin
As we all know, data classes are final by default on Kotlin and if you try to use Mockito and mock such a class, you will get an exception. What you need to do is add this file:
Continue reading “Tricky parts when implementing unit tests for Android in Kotlin”Running unit tests for LiveData with Jupiter on Android
Running unit tests for ViewModels on Android where you have LiveData objects can be tricky. It is very possible that you get this exception:
java.lang.RuntimeException: Method getMainLooper in android.os.Looper not mocked.
Continue reading “Running unit tests for LiveData with Jupiter on Android”Race conditions in unit tests with RxJava when using TestScheduler
I recently had a very strange bug when it comes to using a BehaviorSubject inside the object that I am testing.
Continue reading “Race conditions in unit tests with RxJava when using TestScheduler”Creating a SonarQube custom plugin for Kotlin
In Android we decided that we want to implement a unit test performance monitor. The reason for it is that sometimes some unit tests would execute in more than 1 second and it was all because we would use the Schedulers.trampoline() RxJava scheduler instead of the TestScheduler which is part of the RX package.
Continue reading “Creating a SonarQube custom plugin for Kotlin”