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嗨,我有UIViewController。它有一些数组。 3秒后,我正在实例化故事板,并在故事板中找到第一个UIViewController,并为新的UIViewController设置数据。我的代码如下:从UIController开始故事板UIViewController
let storyBoard = UIStoryboard(name: "TabBar", bundle: nil)
let tabBarController = storyBoard.instantiateViewController(withIdentifier: "tab_bar_story") as! UITabBarController
let uiControllers:[UIViewController] = tabBarController.viewControllers!
print("Size \(uiControllers.count)")
var controller = uiControllers[0] as! UserTabBarItemViewController
controller.users = self.users
// self.present(controller, animated: true, completion: nil)
当self.present行被取消注释时,我得到以下错误。
Size 2
2016-12-13 23:53:16.684 swift_mvp[4229:87787] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Application tried to present modally an active controller <swift_mvp.ViewController: 0x7fb8eef02e20>.'
*** First throw call stack:
我的新故事板新tabBar有2个UIViewControllers我的意思是标签。有什么我在这里做worng。