以编程方式推送UINavigationController. iOS9 [英] Push UINavigationController programmatically. iOS9

问题描述

我想以编程方式显示导航控制器.此代码在iOS 8上完美运行，但在iOS 9上不起作用.

I want to display a navigation controller programmatically. This code works perfect on iOS 8, but on iOS 9 it doesn't work.

var vc = storyboard?.instantiateViewControllerWithIdentifier("view_controller_id") as! UIViewController;
var nc = UINavigationController()
        nc.setViewControllers([vc], animated: false)
        navigationController?.pushViewController(nc, animated: true)

那之后我得到了这个错误

After that I am getting this error

***由于未捕获的异常'NSInvalidArgumentException'而终止应用程序，原因:'推送导航控制器 不支持'

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

推荐答案

您不能将导航控制器推到另一个导航控制器.您将不得不以模态方式向您的导航视图控制器显示视图控制器，或者仅将视图控制器推入活动的导航控制器.

You can't push a navigation controller to another navigation controller. You will have to show your navigation view controller with viewcontrollers modally or just push your view controllers to the active navigation controller.

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