fragmentfactory_traditional_custom_fragment.kt

class MyFragment : Fragment() {
    private lateinit var arg: String
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        arguments?.getString(ARG) ?: ""
    }
    companion object {
        fun newInstance(arg: String) =
            MyFragment().apply {
                arguments = Bundle().apply {
                    putString(ARG, arg)
                }
            }
    }
}