键盘消失

- (void)scrollViewWillBeginDragging:(UIScrollView *)scrollView
{
    [self.view endEditing:YES];   
}

 -(void)touchesBegan:(NSSet<UITouch *> *)touches withEvent:(UIEvent *)event{
    [self.view endEditing:YES];
}

[textFiled resignFirstResponder] 这个则是比较常用的让某个textFiled的键盘隐藏。

 - (void)viewDidLoad  
 {  
     [super viewDidLoad];  
     UITapGestureRecognizer *tapGestureRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(keyboardHide:)];  
     //设置成NO表示当前控件响应后会传播到其他控件上，默认为YES。  
     tapGestureRecognizer.cancelsTouchesInView = NO;  
     //将触摸事件添加到当前view  
     [self.view addGestureRecognizer:tapGestureRecognizer];  
}     
 -(void)keyboardHide:(UITapGestureRecognizer*)tap{  
     [textFiled resignFirstResponder];  
 }  
}