This UIControl extension blocks frequent touches

UIControl_CustomTouchTracker.m

// Created at: Thursday, February 16, 2012 at 4:29 PM

// replace method util
static void MethodSwizzle(Class c, SEL orig, SEL new){
    Method origMethod = class_getInstanceMethod(c, orig);
    Method newMethod = class_getInstanceMethod(c, new);
    if(class_addMethod(c, orig, method_getImplementation(newMethod), method_getTypeEncoding(newMethod))){
        class_replaceMethod(c, new, method_getImplementation(origMethod), method_getTypeEncoding(origMethod));
    } else {
        method_exchangeImplementations(origMethod, newMethod);
    }
}

...


// replace methods
MethodSwizzle([UIControl class],
            @selector(beginTrackingWithTouch:withEvent:),
            @selector(customBeginTrackingWithTouch:withEvent:)
            );
MethodSwizzle([UIControl class],
            @selector(endTrackingWithTouch:withEvent:),
            @selector(customEndTrackingWithTouch:withEvent:)
            );
MethodSwizzle([UIControl class],
            @selector(cancelTrackingWithEvent:),
            @selector(customCancelTrackingWithEvent:)
            );

...
            
#define minIntervalBetweenUIControlActivity 0.5

static NSTimeInterval lastUIControlActivityTime = 0;
@implementation UIControl (Additional)

- (BOOL)customBeginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event{
    //DLog(@"customBeginTrackingWithTouch");

    double interval = CFAbsoluteTimeGetCurrent() - lastUIControlActivityTime;
    if (interval > minIntervalBetweenUIControlActivity) {
        
        if(!self.isFirstResponder){// fix for textField (Dont disable userInteraction when keyboard is showed)
            //[((AppDelegate_Pad *)[[UIApplication sharedApplication] delegate]).window setUserInteractionEnabled:NO];
        }
        
        lastUIControlActivityTime = CFAbsoluteTimeGetCurrent();
        
        BOOL value = [self customBeginTrackingWithTouch:touch withEvent:event];
        
       // DLog(@"customBeginTrackingWithTouch bool %d", value);
        
        return value;
    }
    
   // DLog(@"UIControl not allow");
    
    return NO;
}

- (void)customEndTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event{
   // DLog(@"customEndTrackingWithTouch");
    
    //[((AppDelegate_Pad *)[[UIApplication sharedApplication] delegate]).window setUserInteractionEnabled:YES];
    
    [self customEndTrackingWithTouch:touch withEvent:event];
}

- (void)customCancelTrackingWithEvent:(UIEvent *)event{
   // DLog(@"customCancelTrackingWithEvent");
    
    //[((AppDelegate_Pad *)[[UIApplication sharedApplication] delegate]).window setUserInteractionEnabled:YES];
    
    [self customCancelTrackingWithEvent:event];
}
@end