Login Page Android State

uiStateLoginScreen.kt

sealed class UiState {
    object SignedOut : UiState()
    object InProgress : UiState()
    object Error : UiState()
    object SignIn : UiState()
}

class MyViewModel : ViewModel() {
    private val _uiState = mutableStateOf<UiState>(SignedOut)
    val uiState: State<UiState>
        get() = _uiState

    // ...
}

// In addition to the mutableStateOf API, Compose provides extensions for LiveData, Flow, and Observable 
// to register as a listener and represent the value as a state.

class MyViewModel : ViewModel() {
    private val _uiState = MutableLiveData<UiState>(SignedOut)
    val uiState: LiveData<UiState>
        get() = _uiState

    // ...
}

@Composable
fun MyComposable(viewModel: MyViewModel) {
    val uiState = viewModel.uiState.observeAsState()
    // ...
}