Question

我创建了一个自定义按钮，我以TabBar控制器为中心。我想用它来呈现一个模块化附加到导航控制器的视图控制器。但是，我一直收到错误，错误说我无法推动。然而，我不是在推动。我正在介绍

 func showView() {
    print("We are here ohhh")
    let viewController = self.storyboard?.instantiateViewControllerWithIdentifier("Dashboard")

    //Creating a navigation controller with viewController at the root of the navigation stack.
    let navController = UINavigationController(rootViewController: viewController!)
    self.navigationController?.presentViewController(navController, animated: true, completion: nil)
    //self.presentViewController(navController, animated:true, completion: nil)
}

The Error

Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Pushing a navigation controller is not supported'

Answer 1

假设标识为"Dashboard"的情节提升视图控制器为UINavigationController，您可以直接呈现它：

func showView() {
    let viewController = self.storyboard?.instantiateViewControllerWithIdentifier("Dashboard")
    presentViewController(viewController, animated: true, completion: nil)
}

解雇（从呈现视图控制器）：

dismissViewControllerAnimated(true, completion: {});

解雇（从提供的视图控制器）：

self.presentingViewController.dismissViewControllerAnimated(true, completion: {});

Answer 2

你需要这样做：

let navController = UINavigationController(rootViewController: viewController!)
navController.setViewControllers([viewController], animated: true)
self.presentViewController(navController, animated: true, completion: nil)

从TabBar控制器呈现导航crontroller

2 个答案: