0003_3

createStateForRequest.kt

private fun createStateForRequest(request: suspend () -> Unit) = 
// LiveData (Lifecycle) 2.2.0-alph01 버전 부터 지원
  liveData(Dispatchers.IO) {
    emit(NetworkState.loading)
    try {
        request()
        emit(NetworkState.success)
    } catch (e: IOException) {
        e.printStackTrace()
        emit(NetworkState.failed(e))
    }
}