I know it is a very old post but I still like the m-box library Jmsgboxes 1.2
This library offers a Msgbox and Msgbox2 equivalent to that of Basic4android plus an additional more customizable Msgbox3. There are other controls in JFXtras Labs that I might look at exposing but they will of course not be equivalent to any in Basic4android unless we get lucky. EDIT:-...
Working perfect in Wndows and Linux.
I had trouble on linux with fx.msgbox cut of some rows.
Now I wondering, if it is possible to add AlwaysOnTop and a parent form to this box.
Maybe even I can do this by myself if nobody has time for it