Switching ViewControllers with UISegmentedControl in iOS5

This code works pretty well for your purpose, I use it for one of my new apps.
It uses the new UIViewController containment APIs that allow UIViewControllers inside your own UIViewControllers without the hassles of manually forwarding stuff like viewDidAppear:

- (void)viewDidLoad {    [super viewDidLoad];    // add viewController so you can switch them later.     UIViewController *vc = [self viewControllerForSegmentIndex:self.typeSegmentedControl.selectedSegmentIndex];    [self addChildViewController:vc];    vc.view.frame = self.contentView.bounds;    [self.contentView addSubview:vc.view];    self.currentViewController = vc;}- (IBAction)segmentChanged:(UISegmentedControl *)sender {    UIViewController *vc = [self viewControllerForSegmentIndex:sender.selectedSegmentIndex];    [self addChildViewController:vc];    [self transitionFromViewController:self.currentViewController toViewController:vc duration:0.5 options:UIViewAnimationOptionTransitionFlipFromBottom animations:^{        [self.currentViewController.view removeFromSuperview];        vc.view.frame = self.contentView.bounds;        [self.contentView addSubview:vc.view];    } completion:^(BOOL finished) {        [vc didMoveToParentViewController:self];        [self.currentViewController removeFromParentViewController];        self.currentViewController = vc;    }];    self.navigationItem.title = vc.title;}- (UIViewController *)viewControllerForSegmentIndex:(NSInteger)index {    UIViewController *vc;    switch (index) {        case 0:            vc = [self.storyboard instantiateViewControllerWithIdentifier:@"FooViewController"];            break;        case 1:            vc = [self.storyboard instantiateViewControllerWithIdentifier:@"BarViewController"];            break;    }    return vc;}

I got this stuff from chapter 22 of Ray Wenderlichs book iOS5 by tutorial. Unfortunately I don't have a public link to a tutorial. But there is a WWDC 2011 video titled "Implementing UIViewController Containment"

EDIT

self.typeSegmentedControl is outlet for your UISegmentedControl

self.contentView is outlet for your container view

self.currentViewController is just a property that we're using to store our currently used UIViewController

It's Matthias Bauch solution, but thought of sharing it in Swift anyway!Edit:Adding a link to a Swift 2.0 ready made demo app.https://github.com/ahmed-abdurrahman/taby-segmented-control

var currentViewController: UIViewController?@IBOutlet weak var contentView: UIView!@IBOutlet weak var segmentedControl: UISegmentedControl!@IBAction func switchHappeningTabs(sender: UISegmentedControl) {    if let vc = viewControllerForSelectedSegmentIndex(sender.selectedSegmentIndex) {        self.addChildViewController(vc)        self.transitionFromViewController(self.currentViewController!, toViewController: vc, duration: 0.5, options: UIViewAnimationOptions.TransitionFlipFromRight, animations: {            self.currentViewController!.view.removeFromSuperview()            vc.view.frame = self.contentView.bounds            self.contentView.addSubview(vc.view)            }, completion: { finished in                vc.didMoveToParentViewController(self)                self.currentViewController!.removeFromParentViewController()                self.currentViewController = vc            }        )            }}override func viewDidLoad() {    super.viewDidLoad()    if let vc = self.viewControllerForSelectedSegmentIndex(self.segmentedControl.selectedSegmentIndex) {        self.addChildViewController(vc)        self.contentView.addSubview(vc.view)        self.currentViewController = vc    }}func viewControllerForSelectedSegmentIndex(index: Int) -> UIViewController? {    var vc: UIViewController?    switch index {    case 0:            vc = self.storyboard?.instantiateViewControllerWithIdentifier("FooViewController") as? UIViewController    case 1:            vc = self.storyboard?.instantiateViewControllerWithIdentifier("BarViewController") as? UIViewController    default:        return nil    }    return vc}

For someone want to implement the same in swift

import UIKitclass HomeController: UIViewController {    var currentViewController:UIViewController?    @IBOutlet weak var homeController: UIView!    override func viewDidLoad() {        super.viewDidLoad()        let initialController:UIViewController = self.viewControllerForSegmentedIndex(0)        self.addChildViewController(initialController)        initialController.view.frame = self.homeController.bounds        self.homeController.addSubview(initialController.view)        self.currentViewController = initialController    }    @IBAction func segmentChanged(sender: UISegmentedControl) {        let viewCOntroller:UIViewController = viewControllerForSegmentedIndex(sender.selectedSegmentIndex)        self.addChildViewController(viewCOntroller)        self.transitionFromViewController(self.currentViewController!, toViewController: viewCOntroller, duration: 0.5, options: UIViewAnimationOptions.TransitionFlipFromBottom, animations: {            self.currentViewController?.view.removeFromSuperview()            viewCOntroller.view.frame = self.homeController.bounds            self.homeController.addSubview(viewCOntroller.view)            }, completion:{ finished in                viewCOntroller.didMoveToParentViewController(self)                self.currentViewController?.removeFromParentViewController()                self.currentViewController = viewCOntroller        })    }    func viewControllerForSegmentedIndex(index:Int) -> UIViewController {        var viewController:UIViewController?        switch index {        case 0:            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForFirstController")            break        case 1:            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForSecondController")            break        case 2:            viewController = self.storyboard?.instantiateViewControllerWithIdentifier("StoryboardIdForThirdController")            break        default:            break        }        return viewController!    }}

Storyboard view