Jetpack Compose: Beyond the Basics
Like Duolingo, but for Jetpack Compose: Beyond the Basics. Tomo turns the whole topic into a game you play five minutes a day, until it actually sticks.
For the part of you with thirty open tabs that never became anything.
24 levels across 3 sections, about 48 minutes end to end, roughly 10 days at five minutes a day. It moves through Mastering State and Side Effects, Layouts and Performance, and Architecture and Integration. It assumes you already know the basics.
Free forever · No credit card · iPhone & Android
Key ideas in Jetpack Compose: Beyond the Basics
- Hoisting state allows a parent to pass in the value and handle the logic
- Stateless components are predictable because they only react to passed parameters
- Stateful composables are harder to test because they own their internal data
- A design system relies on components that don't have side effects or hidden state
- Moving state up makes a component 'stateless' and more reusable
- Statelessness ensures the UI remains a pure reflection of the provided state
- Events bubble up from child to parent via lambda callbacks
- State flows down from parent to child as immutable values
- The UI only updates after the underlying source of truth changes
- remember only persists state during simple recompositions
- rememberSaveable stores data in a Bundle to survive configuration changes
- Process death requires state to be saved in a way the OS can restore
- The architectural benefit of separating state from UI
- The flow of data and events in a Unidirectional Data Flow (UDF) pattern
- The role of stateless composables in a design system
- When to use rememberSaveable versus remember
You've tried the other tabs
Thirty open tabs. Four facts you actually kept.
You watched. You nodded. By Sunday it was gone.
One answer, then back to scrolling.
Eight weeks. You meant to finish. You didn't.
Tomo gives Jetpack Compose: Beyond the Basics the Duolingo treatment: levels, streaks, and quick quizzes that test what you just learned. That game loop is what the tabs above never had, so it's the one you actually finish.
Here's what playing it feels like
A real question from this course. Take your best guess.
Why are stateless components considered highly predictable in a Compose UI?
Get it right to open this lesson and 23 more in the app.
Where Jetpack Compose: Beyond the Basics takes you
Master the art of building high-performance, scalable Android UIs. Move past simple layouts to handle complex state, custom graphics, and seamless architecture.
- 1
Mastering State and Side Effects
- State Hoisting and Data Flow
- Managing Side Effects Safely
- 2
Layouts and Performance
- Custom Layouts and Measurement
- Optimizing for Performance
- Advanced Graphics and Canvas
- 3
Architecture and Integration
- Type-Safe Navigation
- Design Systems and Theming
- Interoperability and Testing
3 sections · 8 units · 24 levels. Built to play, not to enroll.
You pick the voice
Jetpack Compose: Beyond the Basics is taught in the The Professor style: clear, structured, thorough. Want a different feel? In the app you can spin up the same topic in any of Tomo's teaching styles. Same facts, totally different vibe.
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