ChooseFilterContractor.kt

@FragmentScope
class ChooseFilterContractor @Inject constructor(private val context: Context) : ActivityResultContractor<Unit, String> {
    override fun createIntent(input: Unit): Intent = Intent(context, ChooseFilterActivity::class.java)
 
    override fun parseResult(resultCode: Int, intent: Intent?): String = if (resultCode == Activity.RESULT_OK) {
          intent?.getStringExtra(KEY_FILTER)?: error("Dispatched RESULT_OK, but no payload)
     } else {
        ""
    }
}