update for 6.1, be so much cooler and swiftier

Author: mattneub

bk2ch12p609tabBar/ch25p880tabBar/ViewController.swift

@@ -4,38 +4,31 @@ import UIKit
 
 class ViewController: UIViewController {
     @IBOutlet var tabbar : UITabBar!
-    var items = [UITabBarItem]()
+    var items : [UITabBarItem] = {
+        Array(1..<8).map {
+            UITabBarItem(
+                tabBarSystemItem:UITabBarSystemItem(rawValue:$0)!,
+                tag:$0)
+        }
+    }()
 
     override func viewDidLoad() {
         super.viewDidLoad()
-
-        for ix in 1 ..< 8 {
-            self.items.append(
-                UITabBarItem(
-                    tabBarSystemItem: UITabBarSystemItem(ix), tag: ix
-                )
-            )
-        }
-        var arr = Array(self.items[0..<4])
-        arr.append(
-            UITabBarItem(tabBarSystemItem: .More, tag: 0)
-        )
-        self.tabbar.items = arr
-        self.tabbar.selectedItem = self.tabbar.items[0] as UITabBarItem
+        self.tabbar.items = Array(self.items[0..<4]) + [UITabBarItem(tabBarSystemItem: .More, tag: 0)]
+        self.tabbar.selectedItem = self.tabbar.items![0] as? UITabBarItem
     }
 }
 
 extension ViewController : UITabBarDelegate {
-    func tabBar(tabBar: UITabBar!, didSelectItem item: UITabBarItem!) {
+    func tabBar(tabBar: UITabBar, didSelectItem item: UITabBarItem!) {
         println("did select item with tag \(item.tag)")
         if item.tag == 0 {
             // More button
             tabBar.selectedItem = nil
             tabBar.beginCustomizingItems(self.items)
         }
     }
-    
-    func tabBar(tabBar: UITabBar!, didEndCustomizingItems items: [AnyObject]!, changed: Bool) {
-        self.tabbar.selectedItem = self.tabbar.items[0] as UITabBarItem
+    func tabBar(tabBar: UITabBar, didEndCustomizingItems items: [AnyObject], changed: Bool) {
+        self.tabbar.selectedItem = self.tabbar.items![0] as? UITabBarItem
     }
 }