<https://stackoverflow.com/questions/52812997/when...

# stackoverflow

[user]

'when' expression must be exhaustive error when using adapters
I would like to do something like this:

class MyPagerAdapter : PagerAdapter() {
override fun getItem(position: Int) = when(position) {
0 -> Fragment0()
1 -> Fragment1()
}

override fun getCount() = 2
}


I am sure that the adapter contains only 2 items, so getCount() simply returns 2. But it shows an error message said that 'when' expression must be exhaustive, add necessary 'else' branch. I understand that I can add an else to solve it, but it's really ugly to...