Check if fragment is currently visible or no

Question

I know there are lots of similar questions in StackOverflow but my question is little different.

I have nested hierarchy of Fragments like in below structure:

<

Answer 1

public static boolean isFragmentVisible(Fragment fragment) {
    Activity activity = fragment.getActivity();
    View focusedView = fragment.getView().findFocus();
    return activity != null
            && focusedView != null
            && focusedView == activity.getWindow().getDecorView().findFocus();
}

original post