Macro to reduce boilerplate code for simple initializer methods. Your initializers must implement - commonInit, and rely entirely on that method for initialization.

JBCommonInit.h

#define JB_COMMON_INIT(superInit) \
^id (typeof(self) __self) { \
	if (!(__self = superInit)) return nil; \
	[__self commonInit]; \
	return __self; \
}(self)

#endif

JBSomeView.mm

- (id)initWithFrame:(CGRect)frame
{
	return JB_COMMON_INIT([super initWithFrame:frame]);
}

- (id)initWithCoder:(NSCoder *)aDecoder
{
	return JB_COMMON_INIT([super initWithCoder:aDecoder]);
}

- (id)initWithStyle:(UITableViewCellStyle)style reuseIdentifier:(NSString *)reuseIdentifier
{
	return JB_COMMON_INIT([super initWithStyle:style reuseIdentifier:reuseIdentifier]);
}

- (void)commonInit
{
	// ...
}