@class UIBarButtonItem; @protocol SUNavigationItemDelegate; @interface SUNavigationItem : UINavigationItem @property (nonatomic) id<SUNavigationItemDelegate> delegate; @property (retain, nonatomic) UIBarButtonItem *secondaryLeftBarButtonItem; - (void)setLeftBarButtonItems:(id)a0 animated:(BOOL)a1; - (void)setLeftBarButtonItem:(id)a0; - (void)setLeftBarButtonItem:(id)a0 animated:(BOOL)a1; - (void)setLeftBarButtonItems:(id)a0; - (void)setSecondaryLeftBarButtonItem:(id)a0 animated:(BOOL)a1; @end