ios - 使用标签栏 Controller 和导航 Controller

Question

我想在显示的 View Controller 之间导航。我不想使用segues。

当我尝试通过单击按钮将表单 FirstViewController 导航到 SecondViewController 时:

 let next = self.storyboard?.instantiateViewControllerWithIdentifier("secondViewController") as! SecondViewController

 self.presentViewController(next, animated: true, completion: nil)

我得到:

Warning: Attempt to present SecondViewController on FirstViewController whose view is not in the window hierarchy!

有什么想法如何在中间插入导航 Controller 吗？

编辑:图中是TabBarController而不是TabViewController。

我使用以下命令从第一个场景的名为“A-Controller”的 Controller 导航到第一个 View Controller :

@IBAction func navigateToFirstViewController(sender: AnyObject) {
    let next = self.storyboard?.instantiateViewControllerWithIdentifier("firstViewController") as! FirstViewController
    self.presentViewController(next, animated: true, completion: nil)
}

图中未显示。

Answer 1

如果您尝试通过 TabBarController 呈现模态视图，则:

let next = self.storyboard?.instantiateViewControllerWithIdentifier("secondViewController") as! UIViewController
self.tabBarController.presentViewController(next, animated: true, completion: nil)