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使用导航控制器在故事板中呈现视图控制器 - Swift

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我目前正在我的新故事板中显示一个viewController：

var storyboard : UIStoryboard = UIStoryboard(name: AccountStoryboard, bundle: nil)
var vc : WelcomeViewController = storyboard.instantiateViewControllerWithIdentifier("WelcomeID") as WelcomeViewController
vc.teststring = "hello"        
self.presentViewController(vc, animated: true, completion: nil)

但是，这使得viewcontroller没有嵌入式导航控制器 . 我尝试将“WelcomeID”更改为故事板中的导航控制器 - 但是没有成功 .

我在Objective -C中使用了这个，但是不知道如何转换为swift：

UIStoryboard *storyboard = [UIStoryboard storyboardWithName:@"SetupStoryboard" bundle:nil];
UINavigationController *navigationController1 = [storyboard instantiateInitialViewController];
navigationController1.modalPresentationStyle = UIModalPresentationFormSheet;
navigationController1.modalTransitionStyle = UIModalTransitionStyleCoverVertical;

WelcomeViewController *vc = (WelcomeViewController *)navigationController1.viewControllers[0];
vc.teststring = @"Hello";

[self presentViewController:navigationController1 animated:YES completion:nil];

你怎么能在swift中做到这一点？

ios uiviewcontroller uinavigationcontroller swift uistoryboard

4 回答

  • 89

    你肯定是在正确的轨道上 . 不幸的是，当您通过其故事板ID引用视图控制器时，它将忽略它嵌入任何内容的事实 . 对于segue，当你转向嵌入的东西时，目标视图控制器将是嵌入式控制器，而不是你通常感兴趣的控制器 . 无论如何，你应该能够以类似的方式修复问题 . Objective-C，所以这只是语法移植的练习 .

    Edit: Define storyboard name with string now

    let storyboard : UIStoryboard = UIStoryboard(name: "AccountStoryboard", bundle: nil)
let vc : WelcomeViewController = storyboard.instantiateViewControllerWithIdentifier("WelcomeID") as WelcomeViewController
vc.teststring = "hello"        

let navigationController = UINavigationController(rootViewController: vc)

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

    或者，您可以为嵌入视图控制器提供ID并将其实例化 .

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  • 9
    let secondViewController = self.storyboard?.instantiateViewControllerWithIdentifier("WelcomeID") as SecondViewController

        self.navigationController?.pushViewController(secondViewController, animated: true)

    类名是：SecondCiewController

    Identifier Name

    回复于
  • 0

    @Chris给出的答案在较旧版本的swift中效果很好 .

    Update Swift 3 & Swift 4

    let storyboard : UIStoryboard = UIStoryboard(name: "AccountStoryboard", bundle: nil)
   let vc : WelcomeViewController = storyboard.instantiateViewController(withIdentifier: "WelcomeID") as! WelcomeViewController
   vc.teststring = "hello"

   let navigationController = UINavigationController(rootViewController: vc)

   self.present(navigationController, animated: true, completion: nil)

    谢谢！！！

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  • 17
    let storyboard = UIStoryboard(name: "Main", bundle: nil)
let vc = storyboard.instantiateViewController(withIdentifier: "SalesVC") as! SalesVC

navigationController?.pushViewController(vc, animated: true)
    回复于

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