如何在從Nib文件移動後顯示UITabBarController

Question

我想從UIViewController回到UITableViewController。 UITableViewController是UITabBarController的子視圖。我爲它寫了下面的代碼。但是UITabBarController不加載。我搜索並找到了answer，但是當我通過鏈接移動時，我看到找不到頁面。它如何編程？請幫幫我。

@IBAction func backPlaylistTable(sender: UIBarButtonItem) { 
     if boolForSong == true { 
      let storyboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle()) 
      let playlistTable = storyboard.instantiateViewControllerWithIdentifier("playlistNavi") as! UINavigationController 
      presentViewController(playlistTable, animated: true, completion: nil) 
     } 
    } 

UITableViewController具有下面的代碼

override func viewDidAppear(animated: Bool) { 
     super.viewDidAppear(animated) 
     self.tabBarController?.tabBar.hidden = false 
     self.tableView.reloadData() 
    } 

UPDATE 我UITabBarController。我更新了它。我想從第三個UIViewController移動到第三個UITableViewController，但是當我做到這一點時，UITabBarController不會加載。

不過我試了一下，但是當我從UIViewConroller移動的UITabBarController打開第一UITabBarController但我想UITabBarController打開第三UITableViewController

@IBAction func thirdPlaylist(sender: UIButton) { 
     let storyboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle()) 
     let passToTaBBarController = storyboard.instantiateViewControllerWithIdentifier("mainTabBarController") as! UITabBarController 
     let playListTVC = storyboard.instantiateViewControllerWithIdentifier("playlistTVCStoryboard") as! UITableViewController 
     passToTaBBarController.selectedViewController?.presentViewController(playListTVC, animated: true, completion: nil) 
     presentViewController(passToTaBBarController, animated: true, completion: nil) 
    } 

Answer 1

我解決了它。我改變了我的代碼，它適用於我。我做了UITabBarController將按索引選擇UITableViewController。

@IBAction func thirdPlaylist(sender: UIButton) { 
     let storyboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle()) 
     let passToTaBBarController = storyboard.instantiateViewControllerWithIdentifier("mainTabBarController") as! UITabBarController 
     passToTaBBarController.selectedIndex = 2 
     presentViewController(passToTaBBarController, animated: true, completion: nil) 
    } 

Answer 2

你需要加載的UITabBarController
變化代碼如下：

@IBAction func backPlaylistTable(sender: UIBarButtonItem) { 
    if boolForSong == true { 
     let storyboard = UIStoryboard(name: "Main", bundle: NSBundle.mainBundle()) 
     let tabCro = storyboard.instantiateViewControllerWithIdentifier("you tab cro id") as! UITabBarController 
     presentViewController(tabCro, animated: true, completion: nil) 
    } 
}