Not sure why you don't need withContext(Dispatchers.IO){ } when invoke UseCase method

[trietbui85]

I see in WeatherViewModel, here is the method to show weather:

fun showWeather() = viewModelScope.launch {
	showLoading()
	val weatherResult = weatherUseCase()
	val tempUnit = getTemperatureUnit()
        ...

Since weatherUseCase() is a method to get weather which should be run in network thread, I wonder why don't you wrap it inside withContext(Dispatchers.IO) { }, like this:

fun showWeather() = viewModelScope.launch {
	showLoading()
	val weatherResult = withContext(Dispatchers.IO) {  weatherUseCase() }
	val tempUnit = getTemperatureUnit()
        ...

[akoufa]

Hey, I don't wrap weatherUseCase() inside withContext(Dispatchers.IO) { } . You can see here that:

Behind the scenes this behaves as if defined as fun user(...): Call and then invoked with
Call.enqueue

If you look at the Call interface and the enqueue method this always did run asynchronously and not on the main thread.

[akoufa]

I will close it, feel free to open it again if you have more questions