No visible @interface for 'UIWindow' declares the selector 'recursiveDescription'

Question

Goal:

Get the view hierarchy into an instance of the NSString

Code:

+ (void)dumpViewHierarchy {
    UIWindow *keyWindow = [[UIApplication sharedApplication] keyWindow];
    NSString *recursive = [keyWindow recursiveDescription];
}

Error:

No visible @interface for 'UIWindow' declares the selector 'recursiveDescription'

Try it with `[(id) keyWindow recursiveDescription]`. It's a hidden property. If worst case you will have to declare it by yourself in an extension, without implementing it. — Sulthan, May 24 '19 at 14:18
Since it's a hidden undocumented property, I wouldn't say it's safe for appstore. It might be unavailable outside debug mode. — Sulthan, May 24 '19 at 14:22
See https://stackoverflow.com/a/27694502/669586 about an extension. — Sulthan, May 24 '19 at 14:23
Small nitpick - Swift -> extension, Objective-C -> category. — rmaddy, May 24 '19 at 15:07

score 0 · Answer 1 · edited May 24 '19 at 17:46

0

That is because uiwindow does not have any method named recursiveDescription. Probably you can use description property to print the description.

edited May 24 '19 at 17:46

rmaddy

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answered May 24 '19 at 15:32

nishith Singh

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No visible @interface for 'UIWindow' declares the selector 'recursiveDescription'

1 Answers1