When it came to dependency injection in Android, it’s no question that Dagger has always taken the lead as the definitive library to use for it. Though setting up Dagger in an app has always been an arduous task, the benefits it presented afterwards are… Read More »Getting Started with Dagger Hilt in an MVVM App (Android Dependency Injection in 2021)
For the longest time, Mockito has been recognised as the go-to mocking framework for Android, but more recently, Mockk has been gaining more popularity especially with the shift to Kotlin and the adoption of Coroutines. If you’re not already familiar with it, Mockk is a… Read More »Why I’m switching from Mockito to Mockk
Error-handling with Coroutines has always been a confusing point for many developers, and that’s because of a number of reasons. Not only are there multiple ways to handle them, but the error propagation mechanism that comes with structured concurrency needs to be understood first. And… Read More »Error Handling Coroutines
This is a short one, because there’s only one thing you need to do to make a Retrofit call to work with coroutines. @GET(“/”) suspend fun getQuote(): QuoteResponse Add the suspend keyword and you’re sorted. Call it from other suspend functions and you’re done. That’s… Read More »Using Retrofit with Coroutines (Oversimplified)
Database calls, network calls, heavy-computing calls, all are such functions that pretty much every app requires, all of which must be run asynchronously, usually in a background thread as these functions can take entire seconds to complete and you don’t want to block your main… Read More »Getting Started with Coroutines in 2021
Retrofit is the undisputed best way to consume APIs in Android. As for handling async tasks and callbacks, you’re most probably almost definitely using RxJava or Coroutines. Probably both. So if you do need to use RxJava and Retrofit, here’s how to do it. No… Read More »Using Retrofit with RxJava
Within test modules, RxJava gives you access to a happy little class called the TestObserver. That’s what this is all about. We can get a TestObserver by calling test() on any observable. What this does is it executes your observable as if you subscribed to it,… Read More »Unit Testing RxJava Observables
ReactiveX, an API for asynchronous programming with observable streams. An API that provides a very beautiful alternative to async tasks. An API that has become core functionality across so many different programming languages and frameworks. RxJava is its implementation for Java, and thus, Android (yes,… Read More »Introduction to RxJava with Observers and Observables
Most Android devs know what mocks are and how to use them. They have in fact become an essential part of writing unit tests. And most Android devs do still also know what spies are: classes that call real methods but can also stub specific… Read More »Mockito Spies And When To Use Them
Last week, Jetpack Compose Beta was officially released. Everybody and their mothers knows that Compose is gonna make a huge shift in the Android system, arguably even to the scale that Kotlin did when it took over Java as the primary language of Android. Jetpack… Read More »First-time Playing with Jetpack Compose (Rambling my Thoughts)
Chaquopy is a module that lets you run Python code in your Android app. For my app, Shopshop Shopping List, I made a script that saves and retrieves my shopping lists in an SQLite database, but when I first connected this to my app with… Read More »Chaquopy SQLite3 Tutorial (Android Python Tutorial)
Whilst continuing development for my app, Shopshop Shopping List, I encountered a problem. I have list items on my shopping list, their names are EditTexts that you can change directly from the list. When focus is lost (i.e. when the user clicks out of the… Read More »Data Binding onFocusChanged Listener (and other non-onclick listeners)
Fragments in Android have had a weird history. When I started Android developing in 2015, the way to add a fragment was to use the FragmentManager and make a transaction getSupportFragmentManager() .beginTransaction() .add(R.id.main_container, new HomeFragment()) .commit(); And you’d have to load it into a container… Read More »Android Jetpack Fragments & Navigation
Animation in Android has always been something that intrigued me. When done right, it can really bolster the perceived quality of an app. In fact, well-used animation alone can make an app stand out from its competitors. While animation was never the hardest thing to… Read More »Motion Layout Basics
So I’ve just done my first stream on Twitch, recreating an old app of mine, Dota Soundboard. During it, I found lots of confusion with setting up the navigation drawer. Of course there was the old way with massive chunks of boilerplate, which is what… Read More »How to setup Android Navigation Drawer (2020 Updated)
