ActivityScreen

Base class for a NavEase screen.

K is the specific key this screen handles, so Content receives it already typed — no casting and no argument-extraction helpers.

sealed class AppScreens : NavEaseRoot {
    data object Home : AppScreens()
    data class Detail(val id: String) : AppScreens()
}

@AutoRegister
class DetailScreen : ActivityScreen<AppScreens.Detail>() {
    @Composable
    override fun Content(navKey: AppScreens.Detail, navEaseController: NavEaseController) {
        Text(navKey.id)   // typed
    }
}

Subclasses must extend ActivityScreen<K> directly and expose a no-argument constructor: KSP reads K from the direct supertype and generates ScreenClass(). Put shared behaviour in a composable you call from Content, not in an intermediate base class.

A fresh instance is created per host, so a screen may hold composition-scoped state without leaking it into another host.

Type Parameters