ios UIScrollView不能响应TouchesBegin：的事件的解决办法

1：@property MyScrollView *scrollView;

2：给MyScrollView，增加类别：MyScrollView+Touch

3：在类别里实现下面三个方法：

@implementation MyScrollView (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

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

[self hiddenkeyBoard];

}

以上方法会造成手写输入时崩溃，最好不要再使用，解决法案如下

解决方案

1.在UIScrollView上面加一个UIView,通过在view上面的手势来改变键盘

UITapGestureRecognizer *tapGr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard:)];
tapGr.cancelsTouchesInView = NO;
[backView addGestureRecognizer:tapGr];

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2.在UITableView上改变键盘

UITapGestureRecognizer *tapGr = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(hideKeyboard:)];
//记得加这句，不然会屏蔽到TableView的点击事件等
tapGr.cancelsTouchesInView = NO;
[tableView addGestureRecognizer:tapGr];