UIControl+PSYBlockTargetAddition.h

#import <UIKit/UIKit.h>

@interface UIControl (PSYBlockTargetAddition)

- (id)addTargetForControlEvents:(UIControlEvents)controlEvents usingBlock:(void(^)(id sender, UIEvent *event))block;
- (void)removeTarget:(id)target forControlEvents:(UIControlEvents)controlEvents;

@end

UIControl+PSYBlockTargetAddition.m

#import "UIControl+BlockTargetAddition.h"

@interface PSYBlockTargetHelper : NSObject
{
@private
    void(^_block)(id sender, UIEvent *event);
}
- (id)initWithBlock:(void(^)(id sender, UIEvent *event))block;
- (IBAction)PSY_action:(id)sender forEvent:(UIEvent *)event;
@end


@implementation UIControl (PSYBlockTargetAddition)

- (id)addTargetForControlEvents:(UIControlEvents)controlEvents usingBlock:(void(^)(id sender, UIEvent *event))block;
{
    id helper = [[PSYBlockTargetHelper alloc] initWithBlock:block];
    [self addTarget:helper action:@selector(PSY_action:forEvent:) forControlEvents:controlEvents];
    return helper;
}

- (void)removeTarget:(id)target forControlEvents:(UIControlEvents)controlEvents;
{
    [self removeTarget:target action:@selector(PSY_action:forEvent:) forControlEvents:controlEvents];
    [target release];
}

@end

@implementation PSYBlockTargetHelper

- (id)init
{
    [self release];
    return nil;
}

- (id)initWithBlock:(void(^)(id sender, UIEvent *event))block;
{
    if(block == nil) return [self init];
    
    if((self = [super init]))
    {
        _block = [block copy];
    }
    return self;
}

- (void)dealloc
{
    [_block release];
    [super dealloc];
}


- (IBAction)PSY_action:(id)sender forEvent:(UIEvent *)event;
{
    if(_block != nil) _block(sender, event);
}

@end