如何在 self.dismiss 块中推送 UIViewController？

Question

主要有 HomeViewController viewController 和 LeftMenuViewController 在当前上下文中以模态方式呈现。现在在 LeftMenuViewController 中有打开 ProfileViewController 的选项，但我不想在 LeftMenuViewController 上显示 ProfileViewController，所以使用了这段代码，但由于某些未知原因它不起作用，LeftViewController 被关闭但 ProfileViewController 没有被推到前面.

@IBAction func editAction(_ sender: Any) {

        let homeVC:HomeViewController = self.presentingViewController!.childViewControllers[0] as! HomeViewController

        self.dismiss(animated: false) {
            DispatchQueue.global().async {
                let infoVC:ProfileViewController = self.storyboard?.instantiateViewController(withIdentifier: "ProfileViewController") as! ProfileViewController
                homeVC.navigationController?.pushViewController(infoVC, animated: true)
            }

        }

    }

任何建议都会很有帮助

Answer 1

改变

DispatchQueue.global()

到

DispatchQueue.main

UI operations should be put in main queue

如何在 self.dismiss 块中推送 UIViewController？

How to push UIViewController in self.dismiss block?

uiviewcontroller

dismiss

ios

swift

swift3