Flow Homework #68
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Flow Homework #68
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ZadorozhnyiSemen
suggested changes
May 2, 2022
| .transform { number -> | ||
| when { | ||
| number % 15 == 0 -> { | ||
| emit(number.toString()) |
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emit(number.toString()) можно вынести за when, чтобы не писать его три раза
| @@ -48,6 +72,11 @@ class SampleInteractor( | |||
| * При любом исходе, будь то выброс исключения или успешная отработка функции вызовите метод dotsRepository.completed() | |||
| */ | |||
| fun task4(): Flow<Int> { | |||
| return flowOf() | |||
| return sampleRepository.produceNumbers() | |||
| .catch { e -> | |||
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если флоу produceNumbers() завершится без ошибки, то условие задачи не выполнится (sampleRepository.completed() не будет вызван)
| @@ -18,7 +19,12 @@ class SampleInteractor( | |||
| * 6) возвращает результат | |||
| */ | |||
| fun task1(): Flow<String> { | |||
| return flowOf() | |||
| return sampleRepository.produceNumbers() | |||
| .transform { emit(it.toFloat().pow(5)) } | |||
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можно использовать map тут и тремя строчками ниже, он попроще выглядит чем transform
| private val _catsLiveData = MutableLiveData<Fact>() | ||
| val catsLiveData: LiveData<Fact> = _catsLiveData | ||
| private val _catsFlow = MutableStateFlow<Result<Fact>>(Result.Success(Fact("", false, "", "", "", false, "", "", ""))) | ||
| val catsFlow : StateFlow<Result<Fact>> = _catsFlow | ||
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| init { | ||
| viewModelScope.launch { | ||
| withContext(Dispatchers.IO) { | ||
| catsRepository.listenForCatFacts().collect { |
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приложение все еще крашится на старте, если сервис недоступен или нет интернета
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