State Management in Jetpack Compose: Best Practices 🚀

Managing UI state is a fundamental part of Android development, and with Jetpack Compose, it becomes easier and more efficient. However, misusing state can lead to unnecessary recompositions, performance issues, and complex debugging.

Understanding State in Jetpack Compose

State in Compose follows a declarative UI approach, meaning the UI is derived from state. This makes state management a crucial part of building stable and efficient applications.

Key Practices for Effective State Management

✅ Use remember to retain state across recompositions
✅ Use rememberSaveable to persist state across configuration changes
✅ Lift state to a ViewModel for better separation of UI and business logic

Example: Counter App with ViewModel

class CounterViewModel : ViewModel() {
    private val _count = MutableStateFlow(0)
    val count: StateFlow<Int> = _count

    fun increment() {
        _count.value += 1
    }
}

@Composable
fun CounterScreen(viewModel: CounterViewModel = viewModel()) {
    val count by viewModel.count.collectAsState()
    Button(onClick = { viewModel.increment() }) {
        Text("Count: $count")
    }
}

📚 More Resources:
📌 Jetpack Compose State Docs
📌 State Hoisting in Jetpack Compose

💡 How do you handle state in Compose? Share your thoughts below!