Lesson 1: Welcome to Android Development

Welcome to Android Development

This is lesson 1 of a 30-part course that takes you from a completely empty Android Studio project to a real app published on the Google Play Store. Every lesson builds on the last one — work through them in order.

What you'll build

Across this course, you'll build a small but real app — a task list with screens, navigation, saved data, and a network-connected feature — using Kotlin and Jetpack Compose, the modern, officially recommended way to build Android UIs.

What you need before starting

• A computer that can run Android Studio (Windows, Mac, or Linux)
• No prior Android experience required
• Basic Kotlin syntax — if you've never written Kotlin before, read Kotlin Basics Part 1 and Part 2 first. This course assumes you're comfortable with variables, functions, and basic control flow.

How the course is structured

1. Lessons 1–5: Setup and foundations
2. Lessons 6–16: Building UI with Compose
3. Lessons 17–21: Architecture, state, and networking
4. Lessons 22–26: Local storage, permissions, and background work
5. Lessons 27–30: Testing, release builds, and publishing

A note on pace

Don't rush. Each lesson is deliberately small — one concept, applied immediately. If a lesson doesn't click, re-read it before moving to the next one; almost everything after lesson 15 builds directly on what came before.

Next: Lesson 2 — installing Android Studio and creating your first project.