UISegmentedControl *topSegmentControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"One", @"Two", @"Three", @"Four", nil]];
    topSegmentControl.backgroundColor = [UIColor clearColor];
    topSegmentControl.segmentedControlStyle = UISegmentedControlStyleBar;
    UIBarButtonItem *toolBarCustom = [[UIBarButtonItem alloc] initWithCustomView:topSegmentControl];
//    UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    self.navigationItem.leftBarButtonItem = toolBarCustom;

UISegmentedControl *topSegmentControl = [[UISegmentedControl alloc] initWithItems:[NSArray arrayWithObjects:@"BottomOne", @"BottomTwo", @"BottomThree", nil]];
//    topSegmentControl.backgroundColor = [UIColor clearColor];
    topSegmentControl.segmentedControlStyle = UISegmentedControlStyleBar;
    UIBarButtonItem *toolBarCustom = [[UIBarButtonItem alloc] initWithCustomView:topSegmentControl];
    UIBarButtonItem *spaceItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
    NSArray *array = [NSArray arrayWithObjects:spaceItem, toolBarCustom, spaceItem, nil];
    [navController setToolbarItems:toolBarCustom];
    [navController setToolbarHidden:NO];