Complete Wear OS Course: Build 10 Android Smartwatch Apps

Install Android Studio and Wear OS SDK to set up a Wear OS development environment, verify system requirements, and configure tools for building, testing, debugging, and using Wear OS emulator.

Configure the wear os emulator in the avd manager, pair devices, enable adb debugging, download the latest wear os system image, allocate ram, and test with a hello world app.

Download and set up Android Studio, configure a Wear OS emulator, create a small project, and run it on the emulator to practice lessons from the course.

Explore a foundational Wear OS hello world app built with Jetpack Compose, showcasing adaptive UI for round and square screens, lifecycle handling, theming, and localization through string resources.

Learn how Wear OS activity lifecycle differs from traditional Android, emphasizing aggressive power management, frequent on pause and on stop, ambient mode, and efficient state saving.

Learn to implement ambient mode and always-on display in Wear OS by using the ambient mode support library, handling transitions with the ambient callback methods, and optimizing for battery life.

Handle Wear OS state changes and interruptions with ViewModel and on save instance state to resume smoothly after notifications, calls, gestures, battery events, and memory pressure.

Design wear OS navigation for small screens with shallow hierarchies, quick actions, and clear feedback using hierarchical, tab, and swipe patterns with rotary crown.

Implement swipe-based navigation for Wear OS using a horizontal pager and gesture handling. Build with pager state, page indicators, and view model for smooth transitions and lazy loading.

Master backstack management in Wear OS by keeping navigation shallow within 2 to 3 taps, and using swipe to dismiss with a remember swipe dismissible nav controller.

Explore touch, voice, and gesture input for Wear OS, implementing tap, long press, swipe, speech-to-text, and gesture detection to create intuitive, accessible apps on round and square screens.

Explore implementing voice recognition in Wear OS apps with the recognizer intent for simple input and the Speech Recognizer API for continuous listening, including permissions, UI cues, and command processing.

Master Wear OS screen handling by detecting round or square shapes and applying responsive layouts with box with constraints, padding, and safe areas, while testing on emulators.

Master responsive Wear OS design by adapting layouts to round, square, and varying sizes using device detection, constraints, and adaptive components like animated visibility and scaling lazy column.

Explore secure and user-friendly authentication on Wear OS, balancing biometric, 3x3 pattern, and companion app methods; implement a unified authentication manager and clear failure feedback.

Implement least-privilege privacy and permission management in Wear OS apps by handling normal, special, and background permissions with a permission manager, including location, activity recognition, and health data.

Discover a wear os pomodoro timer with a circular progress ring, color coded phases, and customizable durations while showcasing MVVM, StateFlow, and a foreground service for reliable background timing.

Explore the differences between Jetpack Compose and traditional views for Wear OS, comparing declarative UI with state-driven updates to XML layouts, and consider performance, maintainability, and Wear OS features.

Set up Jetpack Compose in a Wear OS project by adding dependencies, enabling compose in build features, updating the activity to compose, using wear-specific components, and applying proguard rules.

Explore the fundamental structure of Jetpack Compose for Wear OS, including composable functions, modifiers, and basic UI components like text, column, row, and box, with simple state management.

Learn to use the three wear OS UI composables—text, button, and image—in Jetpack Compose, with typography like body two and caption, accessible descriptions, and performance tips for small screens.

Explore Wear OS specific compose components for smartwatch UX, including button, compact button, stepper button, time text, curved text, scaling lazy column, vignette, and position indicator.

Master column, row, and box layouts in Jetpack Compose for Wear OS. Create compact, responsive interfaces with vertical and horizontal arrangements, spacers, and overlays.

Explore scaling lazy column for wear os, a specialized, efficient list component in the wear compose foundation, optimized for small circular screens with items, headers, keys, and accessibility.

Create curved text and layouts for Wear OS round screens, detect screen shape, optimize with caching, and provide accessibility fallbacks for rectangular displays.

Apply Wear OS material design principles with specialized wear components, theming, accessibility, and adaptive layouts to build cohesive, performant smartwatch interfaces for small screens.

Master state hoisting and composition in Jetpack Compose for Wear OS to build reusable, testable components with unidirectional data flow and ViewModel integration.

Learn how the Wear OS navigation compose library enables wearable navigation using swipe dismiss, swipe to dismiss box, and swipe to reveal box, with a swipe dismissible navhost and controller.

Learn to implement navigation between screens in Wear OS with Jetpack Compose and the wear navigation library, using routes, backstack management, deep links, and data passing for a smooth experience.

Learn Wear OS navigation by managing the backstack with the swipe dismissible nav controller, including popping back, clearing the backstack, and implementing deep links via the navigation graph.

Build reusable custom composables for Wear OS, with minimum 48 dpi touch targets, data-driven components, state hoisting, and battery-efficient, Material Design themed UI.

Optimize performance for Jetpack Compose on Wear OS by reducing recompositions, using remember for expensive objects, and applying derived state, LaunchedEffect, and LazyColumn for efficient lists.

Build an advanced Wear OS habit tracker with Jetpack Compose, reactive flows, and persistent datastore to track daily and weekly progress for five predefined habits.

Explore Wear OS complications on watch faces, including data types like short text, icons, and images, and learn data flow through slots and data sources, life cycle, caching, and interactions.

Build wear os data source complications using a complication data source service and a builder pattern to deliver robust, interactive data with proper lifecycle management, caching, and tap actions.

Explore implementing Wear OS complications by type, including short text, long text, ranged value, icon, small and large image, with guidance on use cases, performance, and best practices.

Explore the Wear OS Tiles API to create interactive glanceable cards on the watch face, leveraging a service-based architecture, proper lifecycle, data management, and real-world patterns.

Explore building interactive tiles that support multi-step workflows, complex layouts, and real-time updates on the Wear OS watch face, using state management, gestures, and performance best practices.

Master tile data management for Wear OS by implementing data flow, various update strategies, real-time updates, caching, synchronization, validation, and robust error handling to ensure current, reliable tiles.

Design Wear OS notifications that are concise, actionable, and respectful of small screens and battery life, with limited actions, smart timing, accessibility, channels, and privacy considerations.

Design action buttons and inline replies for Wear OS notifications on small screens, including voice actions, to enable quick tasks from a smartwatch without opening the app.

Handle ongoing activities for long-running tasks on Wear OS with persistent notifications, progress tracking, and reliable background services. Enable task cancellation, graceful error handling, and optimized battery and performance.

Learn to implement voice actions in Wear OS apps, enabling hands-free interaction through speech recognition, error handling, flexible command processing, and clear feedback for timers, messages, navigation, and health tracking.

Process and respond to voice commands in Wear OS by intent recognition, mapping natural language to actions, validating commands, and delivering clear audio and visual feedback through context aware processing.

Access and process Wear OS sensors—accelerometers, gyroscopes, heart rate monitors, step counters, and environmental sensors—to build health and fitness apps with context awareness, using proper permissions and data filtering.

Explore Google's Health Services API on Wear OS to manage health data, enable exercise sessions and sleep tracking, handle permissions and privacy, and synchronize with Google Fit in health ecosystem.

Learn to build a Wear OS app featuring a main interface, swipeable tiles, and watch face complications, with a hello world greeting, time display, and material design.

Develop a complete Wear OS hydration tracker with a main app, tiles, and complications. Implement using MVVM, Jetpack Compose, Room, Kotlin coroutines, and Horologist for real-time hydration progress.