我试图打开新的观点instantiateViewController:试图打开新的观点
ViewController.swift - > InAppBrowserController.swift
Main.storyboard - > InAppBrowser查看使&故事板标识 - >确定。
let storyboard = UIStoryboard(name: "Main", bundle: nil)
let nextViewController = storyboard.instantiateViewController(withIdentifier: "InAppBrowserView") as! InAppBrowserController
self.present(nextViewController, animated: true, completion: nil)
Blockquote fatal error: unexpectedly found nil while unwrapping an Optional value 2016-11-24 20:24:50.569000 GMK SWork[5920:2148780] fatal error: unexpectedly found nil while unwrapping an Optional value
问题是什么?
我已经试过它 但它帮了我很多。 谢谢!〜 –