0003_6

Activity.kt

binding.btnRequest.setOnClickListener { 
    viewModel.requestFestival( ... ) 
}
binding.btnRetry.setOnClickListener { 
    viewModel.refreshFestival() 
}
viewModel.festival.observer {
    // 페스티벌 데이터가 나옵니다.
}
val observer = { state: NetworkState? ->
    ("Festival Request" to state.toString()).debug()
    Unit
}

viewModel.festivalRefreshState.observer(observer)
viewModel.festivalState.observer(observer)