CADisplayLink+Blocks.h

#import "NSObject+Blocks.h"

@interface CADisplayLink (Blocks)

+(CADisplayLink*)displayLinkWithBlock:(simpleBlock)block;

@end 

CADisplayLink+Blocks.m

#import "CADisplayLink+Blocks.h"

@interface CADisplayLink (Blocks)

+(CADisplayLink*)displayLinkWithBlock:(simpleBlock)block;
{
    return [displayLinkWithTarget:block selector:@selector(invokeBlock)];
}

@end

NSObject+Blocks.h

typedef void(^simpleBlock)(void);

@interface NSObject (Blocks)

-(void)invokeBlock;

@end

NSObject+Blocks.m

#import "NSObject+Blocks.h"

@implementation NSObject (Blocks)

-(void)invokeBlock
{
    simpleBlock blockToInvoke = (id)self;
    
    blockToInvoke();
}

@end

NSTimer+Blocks.h

#import "NSObject+Blocks.h"

@interface NSTimer (Blocks)

+(NSTimer*)scheduledTimerWithTimeInterval:(NSTimeInterval)seconds repeats:(BOOL)repeats block:(simpleBlock)block;

@end 

NSTimer+Blocks.m

#import "NSTimer+Blocks.h"

@interface NSTimer (Blocks)

+(NSTimer*)scheduledTimerWithTimeInterval:(NSTimeInterval)seconds repeats:(BOOL)repeats block:(simpleBlock)block
{
    return [NSTimer scheduledTimerWithTimeInterval:seconds target:block selector:@selector(invokeBlock) repeats:NO];
}

@end