滚动视图上的Xcode键盘问题

Question

我在顶部单一视图上有滚动视图。我有一些文本字段和UIPickers。现在我知道如何在按下返回键时使键盘关闭。但是，当我点击背景或选择UIpicker时，我试图从文本字段中取消键盘。我试过这样做......

界面：

  - (IBAction)textFieldReturn:(id)sender;
  - (IBAction)backgroundTouched:(id)sender;

实施：

-(IBAction)textFieldReturn:(id)sender
{
        [sender resignFirstResponder];
}

-(IBAction)backgroundTouched:(id)sender
{
        [textField resignFirstResponder];
}

但问题是我无法将sroll视图作为控件类型以使其工作..

Answer 1

尝试这样可能对您有所帮助，但不确定，

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
    UITouch *touch = [[event allTouches] anyObject];
       if (![[touch view] isKindOfClass:[UITextField class]]) {
           [yourtextfield resignFirstResponder];
       }
}

要在scrollview上获取触摸事件，您必须进行geasture识别，

UITapGestureRecognizer *singleTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTap)];
    [scroll addGestureRecognizer:singleTap];

 -(void)singleTap{
        [text resignFirstResponder];
        //write whatever you want it.
    }