android fragment using anko

ankoFragment.java

class MyFragment: Fragment(){
    override fun onCreateView(inflater: LayoutInflater?, container: ViewGroup?, savedInstanceState: Bundle?): View? {
        return UI {
            linearLayout{
                editText()
                button("OK")
            }
        }.view
    }
}



class MainActivity : AppCompatActivity() {

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        val fragment = MyFragment()
        linearLayout {
            id = 1
            fragmentManager.beginTransaction().replace(1,fragment).commit()
        }



    }


}