fragment_two_v2.kt

class FragmentTwo : Fragment() {

    override fun onCreateView(
        inflater: LayoutInflater, container: ViewGroup?,
        savedInstanceState: Bundle?
    ): View? {
        return inflater.inflate(R.layout.fragment_fragment_two, container, false).apply {
            this.back_to_fragment_one.setOnClickListener {
                RxBus.instance.publish(FRAGMENT_ONE_TAG)
            }

            this.finish_app.setOnClickListener {
                RxBus.instance.publish(FINISH_APP_TAG)
            }
        }
    }

}