Is there a

findOr

fun like

find{}

in Kotlin collections but let me do another thing if the result was null?

I don’t think there is as it wouldn’t provide much benefit over doing a ?:

val rightDevice = devices.find { it is AudioDevice.BluetoothHeadset 
} ?: 
devices.find { it is AudioDevice.WiredHeadset 
} ?:
devices.find { it is AudioDevice.Earpiece }

Trying to make this code a bit cleaner

That looks pretty clean to me already

What about “devices.any { it in listOfEnums }”

That original algorithm has a prioritization and prefers Bluetooth over wired over earpieces.

In theory, you could also iterate only once: return if bluetooth found or store the first wired and the first earpiece. and return wired ?: earpiece 🙂

var wired: Device? = null
var earpiece: Device?  = null
for (device in devices) {
  if (device is Bluetooth) { return device }
  if (device is Wired && wired == null) { wired = device }
  if (device is EarPiece && earpice == null) { earpiece = device }
}
return wired ?: earpiece

Even better with a sealed class and when