How can I create a SplitViewController programmatically in Swift?

Question

What steps do I need to take? In Objective-C, we created the rootViewController and detailViewController , after adding these controllers to the splitViewController . For instance:

  - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions { self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]]; self.window.backgroundColor = [UIColor whiteColor]; UISplitViewController *splitViewController = [[UISplitViewController alloc] init]; MTTRootViewController *rootViewController = [[MTTRootViewController alloc] init]; MTTDetailedViewController *detailedViewController = [[MTTDetailedViewController alloc]init]; splitViewController.viewControllers = [NSArray arrayWithObjects:rootViewController, detailedViewController, nil]; [self.window setRootViewController:(UIViewController*)splitViewController]; [self.window makeKeyAndVisible]; return YES; } 

How can I do the same in Swift?

Answer 1

if you want to do this with navigationController then try:

 func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool { self.window = UIWindow(frame: UIScreen.mainScreen().bounds) self.window!.backgroundColor = UIColor.whiteColor() var splitViewController = UISplitViewController() var rootViewController = RootViewController() var detailViewController = DetailViewController() var rootNavigationController = UINavigationController(rootViewController:rootViewController) var detailNavigationController = UINavigationController(rootViewController:detailViewController) splitViewController.viewControllers = [rootNavigationController,detailNavigationController] self.window!.rootViewController = splitViewController self.window!.makeKeyAndVisible() return true } 

Answer 2

After a while I found the answer:

The first time you need to create rootViewController and detailViewController. For example, rootViewController will inherit from UITableViewController, and detailViewController will inherit from UIViewController. Next time you will need to do this:

 func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: NSDictionary?) -> Bool { self.window = UIWindow(frame: UIScreen.mainScreen().bounds) self.window!.backgroundColor = UIColor.whiteColor() var splitViewController = UISplitViewController() var rootViewController = RootViewController() var detailViewController = DetailViewController() splitViewController.viewControllers = [rootViewController,detailViewController] self.window!.rootViewController = splitViewController self.window!.makeKeyAndVisible() return true }