将数据从UIViewController传递到AppDelegate

Question

I need to pass the data from the UIViewController to AppDelegate. But should not with NSUserDefaults. I could not find an alternative for it even i don't want it.

Answer 1

if you need access to your delegate, I always create my singleton access in the next way :

// your imports...

#define appDelegate ((YourAppDelegate*)[UIApplication sharedApplication].delegate)

@class YourAppDelegate

//...

in the .h file of YourAppDelegate.

It´s helpful and useful, but do not abuse of the delegate to access to particular things, try to use a different way. Anyway, you can access in that way.