iOS开发——UI篇Swift篇&UITabBarController

UITabBarController

 class UITabBarControllerController: UIViewController {

     var titleString:String!

     @IBOutlet var titleLabel:UILabel!

      @IBOutlet var tabBarCtl:UITabBarController!

     //返回按钮事件
     @IBAction func backButtonClick()
     {
         self.navigationController?.popViewControllerAnimated(true)
     }

     override func viewDidLoad() {
         super.viewDidLoad()

         titleLabel.text = titleString

         // Do any additional setup after loading the view.
     }

     override func didReceiveMemoryWarning() {
         super.didReceiveMemoryWarning()
         // Dispose of any resources that can be recreated.
     }

     /*
     // MARK: - Navigation

     // In a storyboard-based application, you will often want to do a little preparation before navigation
     override func prepareForSegue(segue: UIStoryboardSegue!, sender: AnyObject!) {
         // Get the new view controller using segue.destinationViewController.
         // Pass the selected object to the new view controller.
     }
     */

     //打开一个新的视图控制器，由UITabBarController创建
     @IBAction func creatTabBarController()
     {
         self.presentViewController(self.tabBarCtl, animated: true, completion: {

         })
     }

     //创建代码UITabBarController
     @IBAction func usedCodeCreatTabBarController()
     {
         //定义第1视图控制器
         var itemCtl1 = ItemController1()

         //定义第2视图控制器
         var itemCtl2 = ItemController2()

         //定义第3视图控制器
         var itemCtl3 = ItemController3()

         //定义第4视图控制器
         var itemCtl4 = ItemController4()

         //定义UITabBarController

         var newTabBarCtl = UITabBarController()

         //添加要管理4的视图
         newTabBarCtl.addChildViewController(itemCtl1)
         newTabBarCtl.addChildViewController(itemCtl2)
         newTabBarCtl.addChildViewController(itemCtl3)
         newTabBarCtl.addChildViewController(itemCtl4)

         //或者，通过setViewControllers方法来一起设置
         newTabBarCtl.setViewControllers([itemCtl1,itemCtl2,itemCtl3,itemCtl4], animated: true)

         //创建4个UITabBarItem 实例
         var barItem1 = UITabBarItem(title: )
         var barItem2 = UITabBarItem(title: )
         var barItem3 = UITabBarItem(title: )
         var barItem4 = UITabBarItem(title: )

         //重新设置4个控制的tabBarItem
         itemCtl1.tabBarItem = barItem1
         itemCtl2.tabBarItem = barItem2
         itemCtl3.tabBarItem = barItem3
         itemCtl4.tabBarItem = barItem4

         //推出UITabBarController
         self.presentViewController(newTabBarCtl, animated: true, completion: {

         })
     }
 }