UIScrollView无法响应touch事件解决方法

UIScrollView不会响应touch事件，这样就无法在touchesEnd方法中做一些事情了，比如关闭键盘等等。可以写个category解决这个问题

#import "UIScrollView+TouchEvent.h"

@implementation UIScrollView (TouchEvent)

- (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {

    [[selfnextResponder]touchesBegan:toucheswithEvent:event];

    [super touchesBegan:touches withEvent:event];

}

-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {

    [[selfnextResponder]touchesMoved:toucheswithEvent:event];

    [super touchesMoved:touches withEvent:event];

}

- (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event {

    [[selfnextResponder]touchesEnded:toucheswithEvent:event];

    [super touchesEnded:touches withEvent:event];

}

@end

UITableView是不会响应touchesBegan:withEvent:之类的UIResponder的方法的。因此，加在其上的所有视图的响应者链就断了。如果在UITableView其上加任何的自身不具备类似UIButton一样有目标动作机制的UIView及其子类控件的时候，这个控件也不会响应touchesBegan:withEvent:方法。即便是设置该控件的userInteractionEnabled为YES也没用。

如此一来，如果想要这些控件具有交互性能怎么办？有一种很直观的方法，给这个控件加上手势识别器。

- (void)addAGesutreRecognizerForYourView

{

    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapGesturedDetected:)]; // 手势类型随你喜欢。

    tapGesture.delegate = self;

    [yourView addGestureRecognizer:panGesture];

}

- (void)tapGesturedDetected:(UITapGestureRecognizer *)recognizer

{

    // do something

}