你如何检查Swift中的当前视图控制器类？ [英] How do you check current view controller class in Swift?

问题描述

据我所知，这可以在Objective-C中使用：

As far as I know, this would work in Objective-C:

self.window.rootViewController.class == myViewController

如何检查当前视图控制器是否是特定的视图控制器？

How can I check if the current view controller is a specific one?

推荐答案

要检查Swift中的类，请使用is（如Swift编程指南中名为Type Casting的章节中的检查类型所述）

To check the class in Swift, use "is" (as explained under "checking Type" in the chapter called Type Casting in the Swift Programming Guide)

if self.window.rootViewController is MyViewController {
    //do something if it's an instance of that class
}

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