BaseTwoPanelsLeakFragment.kt

abstract class BaseTwoPanelsLeakFragment(
    private val side: Fragment,
    private val main: Fragment
) : Fragment() {

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        childFragmentManager.beginTransaction().apply {
            replace(R.id.side_container, side)
            replace(R.id.main_container, main)
        }.commitNow()
    }
}