Jetpack Compose Mechanisms

• 
  Jaewoong (skydoves)RevenueCat, Senior Developer Advocate

Nowadays, Jetpack Compose is widely used to build modern Android and multiplatform applications, and it has become much more than just a UI toolkit. Have you ever wondered how the “magic” behind the `@Composable` function actually works? In this session, we’ll explore the internal mechanisms of Jetpack Compose, from its three foundational layers: the Compose Compiler, Compose Runtime, and Compose UI. We’ll look at how composable functions are transformed, how state changes trigger recomposition, how UI is measured and laid out, and how these concepts impact performance in real-world applications. Topics covered: * Compose Compiler: `@Composable` internals, IR transformation, and the Composer * Compose Runtime: SlotTable, Snapshot, and Recomposer * Compose UI: LayoutNode and Compose phases * Performance: stability, recomposition, and Hot Reload

Intended audience

This session is intended for intermediate-level developers who use Jetpack Compose in their day-to-day work and want to better understand its internal mechanisms. Basic knowledge of Jetpack Compose is required. このセッションは、日常的に Jetpack Compose を使用している中級レベルの開発者を対象とし、その内部メカニズムをより深く理解したい方に向けた内容です。 Jetpack Compose の基本的な知識が必要です。

Sessions in the same time slot

10:20 ~ 11:00 | Meerkat

Tackling newspaper layout UI with Jetpack Compose: Three hurdles of composite gestures, polygon article areas, and adaptive page layouts

10:20 ~ 11:00 | Narwhal

Making the path I walk the right choice

10:20 ~ 11:00 | Otter

Nav2, Nav3... or build your own? Understanding the design intent of Nav3 by building it

View all sessions