Not breaking client code is an essential duty of a library developer. Let's take a look at a couple rarely discussed issues you might face in this area.

A perhaps overly thorough look at how extensible state saving is implemented in the AndroidX libraries, and how ViewModel state saving specifically is hooked into this system.

A quick preview of the new SavedState support for Android Architecture Component ViewModels.

There has been a website of some sorts up on this domain for a couple years now. Here's a history of what powered it at various times.

We all use different git configurations for various reasons, and it's easy to get them mixed up. Here's a look at some ways of managing them better.

The @JvmOverloads annotation is a convenience feature in Kotlin for interoperating with Java code, but there is one specific use case on Android where it shouldn’t be used carelessly.

Retrofit's coroutine support has been a long time coming, and it's finally coming to completion. Take a look at how you can use it to neatly integrate networking into an application built with coroutines.

Data classes are great, but don't underestimate what a regular Kotlin class can do on its own.