세그먼트 컨트롤러

NSArray *segItem = [NSArray arrayWithObjects:@"하나",@"둘",@"셋",@"넷",nil];
UISegmentedControl *sc = [[UISegmentedControl alloc] initWithItems:segItem];
sc.segmentedControlStyle = UISegmentedControlStyleBar;
sc.momentary = NO;
[sc addTarget:self action:@selector(segAction:) forControlEvents:UIControlEventValueChanged];
self.navigationItem.titleView = sc;