Modern Android - Getting Started with Jetpack Compose

With Jetpack Compose
Creating a more modern Android UI

Why Jetpack Compose ?

What challenges does traditional Android development face? Writing abstract adapters, complex framework code, the challenges of React app development...
Compose is a library that has put a lot of effort into improving these areas. It makes building native Android apps faster and easier.

Complete UI with just a few lines of code

Let's take the example of creating a scrollable list . Creating a list with traditional Android code requires a tremendous amount of code and time, just for writing the adapter and RecyclerView.

_{Existing Android list code}

But with Compose, you only need to write a few lines of code.

_{List code in Jetpack Compose}

Using Compose like this dramatically speeds up development . It also ensures a clear separation between UI and business logic .
This declarative UI approach has already been proven in other platforms and frameworks (Flutter, Swift UI), and will likely become essential for Android development going forward.

Background of lecture planning

Although the official version of Compose has been released, many people are still struggling to get started because they are unfamiliar with it, lack interest, or lack reference materials.
This course is designed to serve as a reference for those who want to get started with Compose.

In a more modern way
Building an Android UI

This course will recreate examples from "Oh Jun-seok's Android Survival Coding: Kotlin" using Compose. This process will demonstrate how existing technologies can be implemented in Compose.
While reading the book may be helpful for taking this course, it isn't required. Anyone with a background in the subject matter covered in the book will likely find it helpful.

Course target audience

To take this course, you should already have some basic knowledge of Android development . If you don't have any Android development experience or are unfamiliar with Kotlin syntax, this course will be difficult to follow. At the very least, you should have experience writing and studying a simple app in Kotlin to understand the course content.

Lecture Features

This course won't delve into the in-depth details of Compose. By rewriting eight examples from "Oh Jun-seok's Android Survival Coding: Kotlin," using Compose, you'll learn how to adapt existing methods to Compose. You'll acquire the necessary knowledge as you go through the examples.

Learning by example
Jetpack Compose

In this course, you will first learn the basics of Compose and then learn how to use Compose through examples.
Here's what you can learn from each example:

_{BMI calculator
Screen transition (Navigation)}

_{stopwatch
Utilizing Timer, ViewModel}

_{My own web browser
Composable WebView}

_{electronic photo frame
Screen left and right scrolling, scroll animation}

_{spirit level
Canvas, utilizing the accelerometer sensor}

_{xylophone
Easily create sound playback and looping UI}

_{Gps Map
Google Maps, location information, drawing a route on a map}

_{TodoList
MVVM pattern, Room}

Expected questions
Q&A