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Peter Laggner
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Oct 12, 2021
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4 changes: 2 additions & 2 deletions
4
apiclient/src/main/java/com/greyhairredbear/racooin/apiclient/CoingeckoApiClient.kt
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33 changes: 33 additions & 0 deletions
33
app/src/main/java/com/greyhairredbear/racooin/ui/MainScreen.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,33 @@ | ||
| package com.greyhairredbear.racooin.ui | ||
|
|
||
| import androidx.compose.foundation.layout.Column | ||
| import androidx.compose.material.Text | ||
| import androidx.compose.runtime.Composable | ||
| import androidx.compose.runtime.collectAsState | ||
| import androidx.compose.runtime.getValue | ||
| import androidx.compose.ui.Alignment | ||
| import androidx.lifecycle.viewmodel.compose.viewModel | ||
| import com.greyhairredbear.racooin.core.interfaces.Resource | ||
| import com.greyhairredbear.racooin.core.model.CryptoCurrencyRate | ||
|
|
||
| @Composable | ||
| fun MainScreen( | ||
| screenViewModel: MainViewModel = viewModel() | ||
| ) { | ||
| val uiState by screenViewModel.uiState.collectAsState() | ||
| Column(horizontalAlignment = Alignment.CenterHorizontally) { | ||
| when (uiState) { | ||
| is Resource.Success -> { | ||
| (uiState as Resource.Success).data.forEach { | ||
| Text(text = "1 ${it.cryptoCurrency.name} = ${it.fiatBalance.balance} ${it.fiatBalance.fiatCurrency}") | ||
| } | ||
| } | ||
| is Resource.Error -> { | ||
| Text(text = "Error") | ||
| } | ||
| is Resource.Loading -> { | ||
| Text(text = "Loading") | ||
| } | ||
| } | ||
| } | ||
| } |
40 changes: 40 additions & 0 deletions
40
app/src/main/java/com/greyhairredbear/racooin/ui/MainViewModel.kt
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,40 @@ | ||
| package com.greyhairredbear.racooin.ui | ||
|
|
||
| import androidx.lifecycle.ViewModel | ||
| import androidx.lifecycle.viewModelScope | ||
| import arrow.core.computations.either | ||
| import com.greyhairredbear.racooin.core.interfaces.ApiClient | ||
| import com.greyhairredbear.racooin.core.interfaces.Persistence | ||
| import com.greyhairredbear.racooin.core.interfaces.Resource | ||
| import com.greyhairredbear.racooin.core.model.ApiClientError | ||
| import com.greyhairredbear.racooin.core.model.CryptoCurrencyRate | ||
| import dagger.hilt.android.lifecycle.HiltViewModel | ||
| import kotlinx.coroutines.Dispatchers | ||
| import kotlinx.coroutines.flow.MutableStateFlow | ||
| import kotlinx.coroutines.flow.StateFlow | ||
| import kotlinx.coroutines.launch | ||
| import javax.inject.Inject | ||
|
|
||
|
|
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| @HiltViewModel | ||
| class MainViewModel @Inject constructor( | ||
| private val apiClient: ApiClient, | ||
| private val persistence: Persistence, | ||
| ) : ViewModel() { | ||
| private val _uiState = MutableStateFlow<Resource<List<CryptoCurrencyRate>>>(Resource.Loading) | ||
| val uiState: StateFlow<Resource<List<CryptoCurrencyRate>>> = _uiState | ||
|
|
||
| init { | ||
| viewModelScope.launch(Dispatchers.IO) { | ||
| val test = either<ApiClientError, List<CryptoCurrencyRate>> { | ||
| val currencyRateResult = apiClient.fetchCurrencyRates().bind() | ||
| currencyRateResult | ||
| } | ||
|
|
||
| test.fold( | ||
| ifRight = { _uiState.value = Resource.Success(it) }, | ||
| ifLeft = { _uiState.value = Resource.Error("failed api call") }, | ||
| ) | ||
| } | ||
| } | ||
| } |
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