У меня val _user: MutableLiveData<Resource<List<ApiUser>>> = MutableLiveData()
в модели просмотра, но я хочу опубликовать исключение errorException
введите описание изображения здесь
// A generic class that contains data and status about loading this data.
sealed class Resource<T>(
val data: T? = null,
val message: String? = null
) {
class Success<T>(data: T) : Resource<T>(data)
class Loading<T>(data: T? = null) : Resource<T>(data)
class Error<T>(message: String, data: T? = null) : Resource<T>(data, message)
}
// ViewModel
class HomeViewModel : ViewModel() {
val _user: MutableLiveData<Resource<List<ApiUser>>> = MutableLiveData()
var job: CompletableJob? = null
fun f() {
job = Job()
_user.postValue(Resource.Loading(null))
CoroutineScope(IO+job!!).launch {
try {
_user.postValue(Resource.Success(RetrofitBuilder.apiService.getUsers()))
} catch (e: Throwable) {
_user.postValue(Resource.Error("",e))
}
}
}
fun cancelJob() {
job?.cancel()
}
}
// Фрагмент
fun subScribeUI() {
viewModel!!._user.observe(viewLifecycleOwner, Observer {
it?.let {
when(it.status) {
Status.LOADING -> {
Timber.d("LOADING")
}
Status.SUCCESS -> {
Timber.d("SUCCESS")
}
Status.ERROR -> {
Timber.d("ERROR")
}
}
}
})
}
override fun onDestroyView() {
super.onDestroyView()
viewModel?.cancelJob()
}