A row of buttons in a scroll view, you can use it for paging and select different things.
Inherit from UIScrollView and add buttons into it.
It's very simple:
GTScrollButtonsView *scrollView = [[GTScrollButtonsView alloc] initWithFrame:CGRectMake(5, 20, 310, 50)];
[scrollView setButtonNumber:30 InitIndex:12];
[self.view addSubview:scrollView];
[scrollView release];