Out of curiosity: if the ListView (or, better, CLV) is just for those two values (AM/PM) why not use a B4xSwitch, a radio button group ora any similar view?
Same for hours/minutes. There are quite a few "specialized" views available in the Forum.
I understand that a quick and dirty solution looks appealing at first, but in the long run (i.e. well before your project is over) you may regret that choice.
For portabiliy among platforms: use B4XPages, use anchors in Design, prefer B4X views.