진동 길게..

-(void)playVibeDuring:(int)second

{

    for (int i = 1; i <= second; i++)

    {

        [self performSelector:@selector(vibe) withObject:self afterDelay:i * .3f];

    }

}

- (void)vibe

{

    AudioServicesPlaySystemSound(kSystemSoundID_Vibrate);

}