关于UIScrollView及其子视图上按钮等控件点击延迟问题及解决方案

- (instancetype)initWithFrame:(CGRect)frame {
    self = [super initWithFrame:frame];
    self.delaysContentTouches = NO;//
    self.canCancelContentTouches = YES;
    self.separatorStyle = UITableViewCellSeparatorStyleNone;
    
    // Remove touch delay (since iOS 8)
    UIView *wrapView = self.subviews.firstObject;
    // UITableViewWrapperView
    if (wrapView && [NSStringFromClass(wrapView.class) hasSuffix:@"WrapperView"]) {
        for (UIGestureRecognizer *gesture in wrapView.gestureRecognizers) {
            // UIScrollViewDelayedTouchesBeganGestureRecognizer
            if ([NSStringFromClass(gesture.class) containsString:@"DelayedTouchesBegan"] ) {
                gesture.enabled = NO;
                break;
            }
        }
    }
    
    return self;
}

- (BOOL)touchesShouldCancelInContentView:(UIView *)view {
    if ( [view isKindOfClass:[UIControl class]]) {
        return YES;
    }
    return [super touchesShouldCancelInContentView:view];
}

1、设置delaysContentTouches属性为NO，取消UIScrollView在接收到手势的时候的延迟
2、取消延迟手势
3、实现touchesShouldCancelInContentView方法