NSTimer block实现

NSTimer+Block.h

//
//  NSTimer+Block.h
//  Created by manjun.han on 23/06/2013.
//

typedef void (^TimerBlock)(NSTimeInterval time);

@interface NSTimer (Block)

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

@end

NSTimer+Block.m

//
//  NSTimer+Block.m
//  Created by manjun.han on 23/06/2013.
//

#import "NSTimer+Block.h"

@interface NSTimer (BlockPrivite)

+ (void)exeBlockOfTimer:(NSTimer*)timer ;

@end

@implementation NSTimer (Block)


+ (NSTimer *)scheduledTimerWithTimeInterval:(NSTimeInterval)seconds block:(TimerBlock) block repeats:(BOOL)repeats 
{
    return [self scheduledTimerWithTimeInterval:seconds target:self selector:@selector(exeBlockOfTimer:) userInfo:block repeats:repeats];
}

+ (void)exeBlockOfTimer:(NSTimer *)timer
{
    NSTimeInterval time = [timer timeInterval];
    TimerBlock block = [timer userInfo];
    if (block){
        block(time);
    }
}

@end