Learn Android Studio & Kotlin

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Code like a senior Android developer. Learn Android Studio with Kotlin and Jetpack Compose: copy-ready code examples, complete apps with source code, and Android interview questions for every level. Think of it as an Android Studio Kotlin course and a Jetpack Compose tutorial that goes all the way to senior topics.

This course is for developers who know the basics and want to grow: juniors moving up to mid and senior roles, Java and XML developers switching to Compose, and anyone preparing for an Android interview. New to coding? Start with our Learn Android App Development app.

WHAT YOU'LL MASTER
• A modern Android Studio setup: Kotlin 2, Compose BOM, KSP, version catalogs and Gemini in Android Studio
• Idiomatic Kotlin: null safety, generics, sealed classes, value classes, DSLs and collections
• Coroutines and Flow in depth: scopes, cancellation, StateFlow, SharedFlow and testing
• Jetpack Compose internals: recomposition, stability, side effects, custom layouts, Canvas, animation and gestures
• Material 3, design systems, accessibility, edge-to-edge and adaptive layouts for tablets and foldables
• Navigation Compose and Navigation 3, deep links and predictive back
• Architecture at scale: MVVM vs MVI, the domain layer, modularization and Hilt
• The data layer: Retrofit or Ktor, advanced Room, DataStore, Paging 3 and offline-first sync
• Background work, notifications, camera, location, sensors and Bluetooth
• Testing, performance (Baseline Profiles, jank, memory leaks, R8), security and privacy
• Shipping: signing, CI/CD, Android vitals, Play Billing and in-app updates
• Kotlin Multiplatform and Compose Multiplatform
• AI in Android apps: Gemini with Firebase AI Logic, Gemini Nano and ML Kit
• Classic to modern: Views to Compose, LiveData and RxJava to coroutines and Flow

CODE YOU CAN COPY
Every chapter ends with a Code recipes lesson: Kotlin examples by file, how they work, and the real error message with its fix. Tap Copy and paste the code straight into Android Studio.

COMPLETE APPS WITH SOURCE CODE
Ten apps explained file by file: to-do, notes, weather, news, expense tracker, e-commerce, chat, QR scanner, music player and a Kotlin Multiplatform app.

ANDROID INTERVIEW QUESTIONS FOR EVERY LEVEL
• Junior and fresher quick revision
• Mid-level: coroutines, Compose, architecture and the 90-minute machine-coding round
• Senior and lead: mobile system design (chat, feed, image loader, sync), Android internals and behavioural rounds
• The coding round in Kotlin: arrays, hash maps, sliding window, trees, graphs and an LRU cache
• Model answers and mock interview reviews for coding interview preparation

LEARN YOUR WAY
• 24 chapters and 114 lessons with diagrams
• Two quizzes after every lesson, chapter tests and a final exam
• Earn a certificate with a link anyone can verify
• Download chapters and study offline, anywhere
• Listen to lessons read aloud
• A glossary of 172 terms
• Daily goal, reminders, streaks, XP and a weekly leaderboard
• Light and dark mode

FREE TO START
The first three chapters are free. Premium unlocks every chapter, the complete apps and all interview prep.

Questions or ideas? Email [e-mail]. We read every message.

Nouveautés

The all-new Learn Android Studio & Kotlin: a full course from junior to senior.
• 24 chapters of modern Kotlin and Jetpack Compose
• Copy-ready code recipes and 10 complete apps
• Android interview prep for every level
• Quizzes, certificate, offline downloads and read aloud