Gson Android Kotlin Tutorial – Introduction & Parse Generic Lists from JSON

Gson is an open-source JSON library which aims to be simple and quick to use while providing a bunch of options to accommodate even some complex use cases.

In this tutorial you’re going to learn the basics of Gson and how to generic classes (lists to be exact) to and from JSON. Parsing JSON strings and making generic lists out of them is a bit more challenging than it may seem at first glance. It requires a bit of work with TypeTokens. You will also learn how to create an extension function in Kotlin.

This post contains all the code that’s been written in this YouTube video.


To get the code check out this GitHub repository:

Matt Rešetár

Matt is an app developer with a knack for teaching others. Working as a senior software developer at HandCash, freelancer and most importantly developer educator, he doesn't have a lot of free time 😅 Yet he still manages to squeeze in tough workouts 💪 and guitar 🎸