Can you explain the architecture and concept of Jetpack Compose for creating interfaces in Android?

Jetpack Compose is a modern tool for creating UI in Android, based on a declarative approach. Instead of describing step-by-step changes to the interface, you describe how the UI should look in its current state, and Compose automatically updates the screen when data changes.

Main concepts:

• Declarativeness: UI is described by composable functions (@Composable), which take state and return an interface.
• Reactivity: when the state changes, Compose automatically recreates the necessary parts of the UI.
• Composition: the interface is built from small, reusable components.
• No XML: the entire UI is described in Kotlin, simplifying maintenance and refactoring.

Architecture:

• Compose runs on top of Kotlin and integrates with the Android lifecycle.
• Uses a layered system: UI components, state management, animations, navigation.

Example of a simple component:

@Composable
fun Greeting(name: String) {
    Text(text = "Hello, $name!")
}

When the name parameter changes, Compose automatically updates the display.