Core Concepts

For task ownership, lifecycle and Views/Compose/KMP choices, see the consumer guide. These utilities belong to Android source sets.

State machines

StateMachine coordinates state transitions. ViewStateMachine applies visibility and enabled state changes to views, while SceneStateMachine coordinates Android scenes.

Storage

The storage API exposes memory, regular SharedPreferences, and encrypted SharedPreferences implementations behind one typed contract.

Delegates

Delegates reduce repeated access code for persisted values, Activity or Fragment extras, views, and ViewModels.

RecyclerView

The adapter APIs provide reusable binders, item diffing, and sticky-header support without requiring an application-specific base adapter.

Expiring values

ThresholdData scopes a cached value by storage and key. Expiration uses kotlin.time.TimeSource.Monotonic, so clock corrections cannot extend or shorten its lifetime. Durations retain submillisecond precision; a negative duration expires immediately.