touchesBegan: withEvent: 不执行解决

来源：互联网发布：低学历知乎编辑：程序博客网时间：2024/05/22 12:47

touchesBegan: withEvent: / touchesMoved: withEvent: / touchesEnded: withEvent: 等只能被UIView捕获（如有问题请指出对请指出，路过的大牛请勿喷），当我们创建

UIScrollView 或 UIImageView时，当点击时UIScrollView 或 UIImageView 会截获touch事件，导致touchesBegan: withEvent:/touchesMoved: withEvent:/touchesEnded: withEvent: 等方法不执行。解决办法：当UIScrollView 或 UIImageView 截获touch事件后，让其传递下去即可（就是传递给其父视图UIView）

可以通过写UIScrollView 或 UIImageView 的category 重写touchesBegan: withEvent: / touchesMoved: withEvent: / touchesEnded: withEvent: 等来实现

////  UIScrollView+UITouch.m//  ////  Created by MLS on 15/11/20.//  Copyright © 2015年 mls. All rights reserved.//#import "UIScrollView+UITouch.h"@implementation UIScrollView (UITouch)- (void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{    // 选其一即可    [super touchesBegan:touches withEvent:event];//    [[self nextResponder] touchesBegan:touches withEvent:event];}@end

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