more neatening (not so minor: using addChild manually this way was wrong)

Author: mattneub

bk2ch09p488basicMasterDetail/MasterDetail/AppDelegate.swift

@@ -14,10 +14,9 @@ class AppDelegate : UIResponder, UIApplicationDelegate {
         let master = MasterViewController()
         master.title = "Pep"
         let nav1 = UINavigationController(rootViewController:master)
-        svc.addChildViewController(nav1)
         let detail = DetailViewController()
         let nav2 = UINavigationController(rootViewController:detail)
-        svc.addChildViewController(nav2)
+        svc.viewControllers = [nav1, nav2]
         self.window!.rootViewController = svc
         let b = svc.displayModeButtonItem()
         detail.navigationItem.leftBarButtonItem = b

bk2ch09p490universalSplitViewControllerManual/SplitViewControllerManual/ViewController.swift

@@ -15,8 +15,7 @@ class ViewController: UIViewController {
     override func viewDidLoad() {
         super.viewDidLoad()
         let svc = UISplitViewController()
-        svc.addChildViewController(PrimaryViewController())
-        svc.addChildViewController(SecondaryViewController())
+        svc.viewControllers = [PrimaryViewController(), SecondaryViewController()]
         self.addChildViewController(svc)
         self.view.addSubview(svc.view)
         svc.didMoveToParentViewController(self)