The Complete Android Course

Phase 1 Capstone · Daily Water Counter

Track up to eight glasses of water on one screen. Add a glass, undo one, or reset the count. Practice a single saved UI value and button callbacks; this is a counter exercise, not health advice.

1–2h build9 topicsBuild

Phase 2 · Building Interactive UIs

Create forms, lists, themes and accessible layouts; build a packing checklist.

Module 16Available

State Management & State Hoisting

Make composables reusable and testable by hoisting state — the key Compose design pattern.

Module 17Available

Handling User Input

Buttons, text fields, checkboxes, switches, and sliders — building interactive, validated forms.

Module 18Available

TextField: State, Validation & Keyboard Behavior

Trace input events into state, build helpful validation, manage focus and IME actions, and compare value-based and state-based text APIs.

~55 min6 topicsStart

Module 19Available

Button, IconButton & FAB: Actions That Work

Choose action emphasis, use content slots, model enabled and busy states, and make labeled buttons, icon actions and floating actions accessible.

~40 min6 topicsStart

Module 20Available

Checkbox, Switch, RadioButton, Slider & Chips

Match each control to a selection model, hoist values, make entire labeled rows accessible, and calculate slider steps correctly.

Module 21Available

Lists with LazyColumn & LazyRow

Display long, scrolling lists efficiently with lazy composables — the right way to show data.

Module 22Available

LazyColumn, LazyRow & Grids: Identity and State

Build efficient lists and grids with stable keys, explicit empty states, immutable updates and a clear owner for scroll and row state.

Module 23Available

Material Design 3

Build beautiful, consistent UIs with Google's Material 3 components and design system.

Module 24Available

Card, Surface & ListItem: Reusable Content

Choose Material containers, understand tonal and shadow elevation, use content colors and slots, and give interactive content clear ownership.

~40 min6 topicsStart

Module 25Available

Scaffold, App Bars & Structure

Give apps their standard structure with Scaffold, top bars, FABs, and snackbars.

Module 26Available

Scaffold, App Bars, NavigationBar & FAB

Assemble screen slots, apply Scaffold padding once, reason about system insets, and distinguish local destination selection from a navigation back stack.

Module 27Available

Dialogs, Menus, Snackbars & Progress

Represent transient UI with state, separate confirmation from dismissal, anchor menus, launch snackbars from events and show truthful progress.

Module 28Available

Styling, Theming & Dark Mode

Craft a custom theme, support dark mode, and use dynamic color (Material You).

Module 29Available

Adaptive Layouts & Accessibility

Build for changing window space, large text and assistive technology with responsive layouts and meaningful semantics.

~35 min6 topicsStart

Phase 2 Capstone · Packing Checklist

Build a packing checklist: add a name, mark an item packed, and remove a row. Learn forms, immutable list updates, callbacks, and stable IDs. The list intentionally stays in memory; permanent storage comes later.

2–3h build10 topicsBuild

Phase 3 · Navigation & Architecture

Typed routes, ViewModels, MVVM and restoration; walk through a two-screen lesson catalog.

Module 31Available

Navigation in Compose

Move between screens with Navigation Compose, routes, arguments, and the back stack.

Module 32Available

ViewModel & UI State

Hold and expose UI state properly with ViewModel and StateFlow, surviving configuration changes.

Module 33Available

Architecture: MVVM

Structure real apps with MVVM and unidirectional data flow — the architecture Google recommends.

Module 34Available

Lifecycle & State Restoration

Distinguish recomposition, rotation, system process death and persistent storage; verify small-input restoration with a hands-on lab.

~35 min6 topicsStart

Module 35Available

Optional · Multi-Screen Navigation Patterns

Bottom navigation, nested graphs, and type-safe navigation for real multi-screen apps.

Phase 3 Capstone · Offline Lesson Catalog

Browse three bundled lessons, open a lesson by ID, and mark it as a favorite. Two screens introduce typed navigation, Back, safe lookups, and ViewModel state without networking or persistent storage.

2–3h build8 topicsBuild

Phase 4 · Data & Persistence

Learn coroutines, Flow, databases and APIs; practice persistence with a reading log.

Module 37Available

Coroutines in Android

Run asynchronous work without blocking the UI, using suspend functions and viewModelScope.

Module 38Available

Kotlin Flow in the UI

Stream data reactively into Compose with Flow and StateFlow, collected safely.

~28 min4 topicsStart

Module 39Available

Local Storage with DataStore

Persist simple settings and preferences asynchronously with Jetpack DataStore.

~26 min4 topicsStart

Module 40Available

Room Database

Store structured data locally with Room — entities, DAOs, queries, and observing with Flow.

~34 min5 topicsStart

Module 41Available

Repository Pattern & Data Layer

Build a clean data layer that combines local and remote sources behind a single repository.

Module 42Available

Optional · Networking with Retrofit

Call REST APIs and parse JSON with Retrofit and coroutines — connecting your app to the world.

~32 min5 topicsStart

Module 43Available

Optional · Background Work with WorkManager

Schedule repeat-safe persistent refresh work with unique requests, network constraints, cancellation and an explicit retry policy.

~40 min6 topicsStart

Phase 4 Capstone · Reading Log

Save short reading notes in a single-screen Reading Log. Add and delete notes, display a useful empty state, and verify that committed records remain after restarting the app. Room is the only owner of saved notes.

3–4h build8 topicsBuild

Phase 5 · Screen Behavior & Quality

Use effects carefully, measure performance, and build a simple settings screen. Motion and custom drawing are optional.

Module 45Available

Side Effects & Effect Handlers

Run non-UI work safely from composables with LaunchedEffect, DisposableEffect, and friends.

Module 46Available

Performance & Best Practices

Keep apps smooth by understanding recomposition, stability, and how to avoid needless work.

Module 47Available

Optional · Animations in Compose

Bring your UI to life with Compose's concise, powerful animation APIs.

Module 48Available

Optional · Custom Layouts & Canvas

Go beyond built-ins with the Layout composable and custom drawing on the Canvas.

Phase 5 Capstone · Study Preferences

Build one settings screen with two switches and Reset. Practice state hoisting, conditional content, and a readable light/dark theme. Settings use saved UI state; durable preferences are a separate DataStore exercise.

1–2h build7 topicsBuild

Phase 6 · Professional Android

Learn DI, tests, security and release checks; practice with a tested score calculator.

Module 50Available

Testing Compose Apps

Prove your app works with unit tests for logic and Compose UI tests for the interface.

Module 51Available

Permissions, Publishing & the Play Store

Handle runtime permissions and take your app all the way to a live Play Store listing.

Module 52Available

Android Security & Privacy

Audit real data flows, minimize permissions, select media through system pickers, and protect storage, networking and release credentials.

~35 min6 topicsStart

Module 53Available

Optional · Dependency Injection with Hilt

Wire your app together cleanly and testably with Hilt dependency injection.

Phase 6 Capstone · Tested Score Calculator

Calculate a quiz percentage using two whole-number inputs. Extract a pure Kotlin function, test normal and invalid cases, and verify the screen separately. Integer division deliberately rounds down; no money calculations or architecture framework is needed.

1–2h build7 topicsBuild

Phase 7 · Portfolio

Combine lists, navigation, Room and tests in Study Tasks, with a complete reference solution.