如何从应用程序委托中获取iOS应用程序中的活动视图？ [英] How to get the active view in an iOS application from the app delegate?

问题描述

如何从应用代表处获取当前活动视图（当前正由用户查看的主视图）以供参考？

how can i get the currently active view (the main view currently being viewed by the user) from the app delegate for references sake?

推荐答案

UIWindow *window = [[UIApplication sharedApplication] keyWindow];
UIView *topView = window.rootViewController.view;

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