I am using this method

- (void)keyboardWillShow:(NSNotification *)notification

that is triggered when the keyboard shows.

When this method is triggered, it receives a notification that contains several parameters about the keyboard, as the animation duration, animation curve and frame. I need to forward this notification and all its parameters to another class. So, I've tried to do this inside keyboardWillShow:

[[NSNotificationCenter defaultCenter] 
 postNotificationName:@"doSomething" object:notification userInfo:nil];

the doSomething notification runs doSomething method on another class, and it has this form:

- (void) doSomething:(NSNotification *)notification {

but when I try to read the notification values on this other class, using, for example,

myRect = [[[notification userInfo] objectForKey:UIKeyboardFrameEndUserInfoKey] CGRectValue];

I obtain zero for all values. The notification is losing its parameters and not being forwarded. How can I do that?

thanks.