```private fun subscribeToViewModel() = lifecycleS...

# coroutines

[Vincent Williams]

private fun subscribeToViewModel() = lifecycleScope.launch(Dispatchers.Main) {
        viewModel.viewState.collect { onViewStateEvent(it) }
        viewModel.navigationEvents.collect { onNavigationEvent(it) }
    }

This code doesnt seem to work. It only collects the first flow. Do I need to have two separate launch statements? Is there an easier way to do this as it gets a little messy with 3 or 4 flows

[louiscad]

You need multiple launch calls, or use onEach and launchIn

[Vincent Williams]

how does onEach differ from collect?

[louiscad]

@Vincent Williams Look at the signature of both functions (including their modifiers), and their documentation.

[Vincent Williams]

sorry to rephrase, I understand how the actual methods differ, but is there any functional difference between using onEach and launchIn vs just collect

[Vincent Williams]

or are both of those equivalent ways of doing the same thing?

[louiscad]

Yes, collect suspends while collecting items

[louiscad]

But launch + collect is equivalent to onEach + launchIn, unless you care about each CPU cycle, in which case there's a very very tiny difference. So I'd pick onEach + launchIn when more convenient.

[Vincent Williams]

ok cool. Its also convenient because I can use catch instead of the coroutine exception handler

[Vincent Williams]

didnt realize that function existed until now

[louiscad]

Ah yes, I should also start using it myself, thanks for reminding me it exists!

[Vincent Williams]

ya Ive been wanting something like that for a while (thought the coroutineexceptionhandler was pretty messy) had no idea they already added it xD