I want to give a list of choices on an iPhone GUI that works like a Combobox/Option menu. It needs to display the current selection, but on tapping it you should be able to change the current selection which will trigger a refresh of the screen.

The option menu is letting the user choose which category a search is being performed under. So there is a default category and there are about 6 other choices.

Idea 1: Use a label or button and when clicked on a new screen overlays that has all 6 options in a tableview, clicking on one closes the overlay screen and goes back to the main page with the updated value displayed.

Idea 2: Should I use a totally different but native iPhone GUI widget like a Navbar at the bottom of the screen to reflect the different options?