Global Variable


Posted when the user changes the preferred content size setting.


const NSNotificationName UIContentSizeCategoryDidChangeNotification;


This notification is sent when the value in the preferredContentSizeCategory property changes. The userInfo dictionary of the notification contains the UIContentSizeCategoryNewValueKey key, which reflects the new setting.

See Also

Getting the Font Sizing Preference


The font sizing option preferred by the user.


Constants indicating the preferred size of your content.


A key whose value is an NSString object reflecting the new value of the preferredContentSizeCategory property.

Beta Software

This documentation contains preliminary information about an API or technology in development. This information is subject to change, and software implemented according to this documentation should be tested with final operating system software.

Learn more about using Apple's beta software