kotlin-project-state-management

Implement state management for Kotlin Multiplatform UI by selecting patterns like ViewModel, shared presenter, MVI, or StateFlow in commonMain. Compose testable state holders with explicit lifecycle wiring and UiState modeling to ensure consistent behavior across Android, iOS, desktop, and web targets.

Handling one-time effects in KMP requires distinguishing them from persistent UI state. Use explicit guidance on effect handling to align with platform lifecycles, ensuring effects execute once while UiState maintains continuous representation across Android and iOS targets.

You can use ViewModel with StateFlow in commonMain by composing testable state holders across shared code and platform-specific wiring. This approach aligns dependency placement and test strategies with platform behavior while avoiding common anti-patterns in KMP projects.

Test state holders and UiState in Kotlin Multiplatform by ensuring test strategies align with platform behavior. Compose testable state holders across commonMain and platform-specific wiring, verifying lifecycle handling and effect execution to avoid common anti-patterns.

Choosing MVI over a shared presenter for KMP state management depends on your invariant state contract needs. MVI provides strict unidirectional data flow with explicit UiState modeling, while shared presenters offer flexible wiring across Android, iOS, desktop, and web targets.

Losing UI state across platform lifecycle changes happens when state holders lack proper lifecycle wiring. Apply correct handling of one-time effects versus persistent state, ensuring dependency placement and lifecycle alignment match platform behavior across Android and iOS targets.