Saving Data on Android

Learn about different ways to save data on Android! Use SharedPreferences to store user-facing configuration, use Files to store complex data in the form of JSON or media files, and use the SQLite Open Helper database to store meaningful objects that you can create, read, update and delete.

Kotlin Coroutines: Fundamentals

Learn the fundamentals about threads and coroutines, along with the basics of the Kotlin Coroutines framework.

Room Database: Getting Started

Covers loads of cool concepts in local data persistence, using the Room database on Android. Learn how to use Entities, Queries, Relations, Kotlin Coroutines, Type Converters, and database Migrations to develop a complex and wholesome app.

Android Networking: Fundamentals

Learn about the the HTTP, JSON, REST and all the other cool and important abbreviations in the world of networking!

Implement the Retrofit library in Android, add interceptors, parsers, and Kotlin Coroutines.

Android Networking: Beyond the Basics

Implement advanced concepts in the Retrofit library in Android, and add interceptors and parsers. Learn how Kotlin Coroutines can make your networking code easy to write and understand.

Android Background Processing

Learn about all the cool concepts from background processing in Android! Use the WorkManager, JobScheduler, Services, AsyncTasks and the AlarmManager.

Learn what each concept brings to the table, and how they affect your app's performance!

Kotlin Flow: Getting Started

Kotlin Flow is a new asynchronous stream library from JetBrains, the company behind the Kotlin language. Sharing many similarities with Rx streams, Kotlin Flow is built on top of Kotlin Coroutines. Get started by learning the concepts and usage patterns for the Flow API within IntelliJ IDEA projects. Then, see Flow in action in an Android app. Note: Flow is experimental in Kotlin 1.3 but will likely be stable in Kotlin 1.4.