A small smart-home screen built to explore the new Jetpack Compose Foundation Style API.

The app is intentionally focused: one air-conditioner control screen, a clean Material 3-inspired visual system, and a few interactive states that show how styles can live outside regular composition while still reading the right theme values at the right time.

• A centralized AppTheme.styles layer for reusable component styles.
• Style tokens resolved inside StyleScope with CompositionLocal.currentValue.
• Pressed, selected, and disabled states with rememberUpdatedStyleState.
• A compact climate control area with mode selector, fan speed, and Eco chip.
• A custom temperature gauge built with Compose Canvas.
• A simple MVVM-ish state flow using ViewModel and StateFlow.

The Style API makes component styling feel more like a first-class design-system layer. Instead of creating styles inside @Composable functions, this sample keeps styles as stable values and lets them resolve theme tokens when the style is actually applied.

That detail matters. Reading MaterialTheme or a CompositionLocal.current too early can freeze a color, shape, or typography value at creation time. Here, the style layer reads theme values like this:

val StyleScope.colorScheme: ColorScheme
    get() = LocalAppTheme.currentValue.colorScheme

So the style stays reusable, lightweight, and theme-aware.

app/src/main/java/com/ardakazanci/progsettings/
  components/        UI pieces like cards, controls, and the temperature gauge
  model/             Screen state models
  screen/            Screen and ViewModel
  ui/theme/          Material theme, app tokens, and Style API helpers

The most important files for the Style API experiment are:

• ui/theme/AppStyles.kt
• ui/theme/StyleTheme.kt
• ui/theme/Theme.kt
• components/ClimateControls.kt
• components/TemperatureGauge.kt

Open the project in Android Studio and sync Gradle, or build from the terminal:

./gradlew :app:assembleDebug

The project uses the experimental Foundation Style API, so the opt-in is configured at the Gradle compiler level.

This is not a full smart-home app. It is a focused UI sample for trying the Style API in a real-ish component tree, with enough interaction to make style states useful without turning the sample into a large architecture project.