Build Android apps.
Build with purpose.
Explore Android development from Kotlin fundamentals and modern UI to app architecture, APIs, local storage, testing, performance, security, and publishing.
Your Android roadmap
From fundamentals to real apps.
Follow a learning path that takes you from core Android concepts to building, testing, and delivering dependable applications.
01 / Android foundations
Start strong. Understand the platform.
Learn Kotlin, the Android application lifecycle, project structure, core components, and the development tools used to create Android apps.
Explore foundations
02 / UI & user experience
Design screens that feel native.
Explore Jetpack Compose, layouts, state, navigation, accessibility, and responsive interfaces for different Android devices.
Explore UI development
03 / App architecture
Build apps that are easier to evolve.
Learn how to separate responsibilities, manage data, communicate with APIs, persist information, and structure applications for testing.
Explore architecture
04 / Quality & release
Turn working code into a reliable app.
Explore automated testing, performance, app security, debugging, release preparation, and publishing workflows.
Explore production readiness
Explore the Android toolkit
Every layer of Android development.
Explore the concepts that help you plan, implement, test, and maintain modern Android applications.
Kotlin
Understand language fundamentals, null safety, collections, coroutines, and idiomatic code.
Explore topic ↗Android Components
Learn about activities, services, broadcast receivers, intents, and application entry points.
Explore topic ↗Development Tools
Work with Android Studio, Gradle, emulators, debugging tools, and build configurations.
Explore topic ↗Application Lifecycle
Understand lifecycle events, configuration changes, process recreation, and saved state.
Explore topic ↗Jetpack Compose
Build declarative interfaces with composable functions, state, and reusable UI components.
Explore topic ↗Layouts & UI
Create adaptable layouts, apply design principles, and support accessibility.
Explore topic ↗State Management
Manage UI state, observable data, events, and changes throughout the app lifecycle.
Explore topic ↗Navigation
Organize app destinations, navigation flows, back behavior, and deep links.
Explore topic ↗App Architecture
Separate concerns, structure application layers, and make code easier to test.
Explore topic ↗Networking & APIs
Connect to remote services, handle responses, and manage loading and error states.
Explore topic ↗Local Storage
Explore preferences, files, databases, caching, and offline data access.
Explore topic ↗Dependency Injection
Manage dependencies to improve separation, testability, and maintainability.
Explore topic ↗Testing
Validate application behavior with unit tests, UI tests, and integration checks.
Explore topic ↗Performance
Investigate responsiveness, memory use, startup time, battery impact, and smoothness.
Explore topic ↗App Security
Protect sensitive data, handle permissions responsibly, and reduce common security risks.
Explore topic ↗Publishing & Release
Prepare release builds, configure signing, manage versions, and plan app delivery.
Explore topic ↗Learn through real products
Break down apps.
Understand the thinking.
Explore how real applications can be understood through their user journeys, features, architecture, data flows, and technical trade-offs.
Explore Android resources ↗From features to architecture.
Examine the problem an app solves, map its main screens, identify possible system components, and reason about the design choices.
Your next build starts here
Learn the concepts.
Build something real.
Strengthen your fundamentals, practice application design, and develop the confidence to work on more complex Android projects.