My LoginRepository

interface LoginRepository {

    suspend fun postLogin(
        loginRequest: LoginRequest
    ): Resource<Login>
}

My LoginRepoImpl

@Singleton
class LoginRepositoryImpl @Inject constructor(
    private val api:ApiClient,
):LoginRepository{
    override suspend fun postLogin(loginRequest: LoginRequest): Resource<Login> {
        return try {
            val result = api.login(loginRequest)
            Resource.Success(result.toLoginDomain())
        }catch (e: IOException){
            e.printStackTrace()
            Resource.Error("Could not load login")
        }catch (e:HttpException){
            e.printStackTrace()
            Resource.Error("Internet connection problem")
        }
    }
}

My ViewModel

@HiltViewModel
class LoginViewModel @Inject constructor(
    private val useCase: LoginUseCase
) : ViewModel() {

    private val _state = mutableStateOf<LoginState>(LoginState.InProgress)
    val state: State<LoginState> get() = _state

    fun login(username: String, password: String) = viewModelScope.launch {
        val login = async { useCase.execute(loginRequest = LoginRequest(username,password)) }
        _state = _state.value
    }

Please help me, i have no idea, sorry i just startd my career as android developer 1 month ago. so i am new in android development.

CodePudding user response：

You just need a small improvement in your viewModel:

@HiltViewModel
class LoginViewModel @Inject constructor(
    private val useCase: LoginUseCase
) : ViewModel() {

    private val _state = mutableStateOf<LoginState>(LoginState.InProgress)
    val state: State<LoginState> get() = _state

    fun login(username: String, password: String) = viewModelScope.launch {
        val loginDeferred = async { useCase.execute(loginRequest = LoginRequest(username,password)) }
        when (loginDeferred.await()) {
           is Resource.Success -> _state.value = LoginState.Success
           is Resource.Error -> _state.value = LoginState.Error
        }
    }
}

What have we done there? We are waiting to login result via await operator. After that we push new LoginState depending on result.