//创建一个分类
//.h
#import <UIKit/UIKit.h>
@interface UIScrollView (Touch)
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event;
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event;
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event;
@end
//.m
#import "UIScrollView+Touch.h"
@implementation UIScrollView (Touch)
- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
[[self nextResponder] touchesBegan:touches withEvent:event];
[super touchesBegan:touches withEvent:event];
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {
[[self nextResponder] touchesMoved:touches withEvent:event];
[super touchesMoved:touches withEvent:event];
}
- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {
[[self nextResponder] touchesEnded:touches withEvent:event];
[super touchesEnded:touches withEvent:event];
}
@end
/**工程中调用*/
- (void)viewDidLoad {
[super viewDidLoad];
//实现scroll触摸屏幕
[self touchesBegan:nil withEvent:nil];
[self touchesMoved:nil withEvent:nil];
[self touchesEnded:nil withEvent:nil];
}
原文：http://www.cnblogs.com/TheYouth/p/4994185.html