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问题描述

为什么我在InterfaceBuilder的文件中的FirstResponder缺少redo:连接(在Received Actions列表中)? undo:存在,但redo:不存在.我该如何解决?

Why my FirstResponder in InterfaceBuilder's file is missing redo: connection (in Received Actions list)? undo: exists, but redo: doesn't. How could I fix it?

推荐答案

这是一个错误.解决方法是将其扔到文件中的某个位置:

This is a bug. The workaround is to throw this in a file somewhere:

@interface NSResponder (Redo)
- (IBAction)redo:(id)sender;
@end

然后在Interface Builder中建立连接.完成后,您可以删除此代码.

Then make your connection in Interface Builder. Once that is done you can delete this code.

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09-02 05:40