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kotlinlang

thirdStepPayServiceFragment = (fragmentManager.findFragmentByTag("third") as ThirdStepPayServiceFragment?)!!
        if (fragmentManager.findFragmentByTag("third") == null) {
            thirdStepPayServiceFragment = ThirdStepPayServiceFragment()
            fragmentTransaction = fragmentManager.beginTransaction()
            fragmentTransaction.replace(R.id.fragment_container, thirdStepPayServiceFragment!!, "third")
            fragmentTransaction.addToBackStack("third")
            fragmentTransaction.setTransition(androidx.fragment.app.FragmentTransaction.TRANSIT_FRAGMENT_OPEN)
            fragmentTransaction.commit()
        }