In Fragment on back button pressed Activity is blank

Question

I have an Activity and many fragments inflated in same FrameLayout

Answer 1

Just don't add the first fragment to back stack

Here is the Kotlin code that worked for me.

    val ft = supportFragmentManager.beginTransaction().replace(container, frag)
    if (!supportFragmentManager.fragments.isEmpty()) ft.addToBackStack(null)
    ft.commit()