This is a simple subclass of UIViewController reproducing the behaviour of the Twitter iOS app. It handles the swipe between multiple viewControllers, and synchronise swipe of titles and apparition of navbar buttons.
The repo contains a functional example, but basically add the PASwipeViewController.swift file to your project, and then instantiate it this way:
let swipeVC = PASwipeViewController(viewControllers: viewControllers)
let navVC = UINavigationController(rootViewController: swipeVC)
window = UIWindow(frame: UIScreen.mainScreen().bounds)
if let window = window {
window.backgroundColor = UIColor.whiteColor()
window.makeKeyAndVisible()
window.rootViewController = navVC
}If you specify the optional property "title" on your viewControllers, it will be displayed in the navbar.
If you want to provide buttons in the navbar, make your inside controller implement PASwipeViewControllerDataSource and the following methods:
func leftNavigationBarButton() -> UIBarButtonItem?
func rightNavigationBarButton() -> UIBarButtonItem?This will make the buttons appears and disappears when the views are scrolled.
Finally, you can be notified of changed page by either implementing the PASwipeViewControllerDelegate or using the block syntax:
swipeVC.onSwipeViewDidSwipe = { (selectedIndex:Int, selectedViewController:UIViewController) -> Void in
println("changed to \(selectedIndex)")
}The project is under MIT license, see attached file license.txt