Question

因为当我单击UITextField时，日期选择器与键盘一起显示，我想在dob-text字段上隐藏键盘操作？这里我的代码

- (void)removeViews:(id)object 
    {
    [[self.view viewWithTag:9] removeFromSuperview];
    [[self.view viewWithTag:10] removeFromSuperview];
    [[self.view viewWithTag:11] removeFromSuperview];
    }

    - (void)dismissDatePicker:(id)sender 
    {
    CGRect toolbarTargetFrame = CGRectMake(0, self.view.bounds.size.height, 320, 44);
    CGRect datePickerTargetFrame = CGRectMake(0, self.view.bounds.size.height+44, 320, 216);
    [UIView beginAnimations:@"MoveOut" context:nil];
    [self.view viewWithTag:9].alpha = 0;
    [self.view viewWithTag:10].frame = datePickerTargetFrame;
    [self.view viewWithTag:11].frame = toolbarTargetFrame;
    [UIView setAnimationDelegate:self];
    [UIView setAnimationDidStopSelector:@selector(removeViews:)];
    [UIView commitAnimations];
    }

    - (IBAction)but 
    {
    //[eventText resignFirstResponder];
    [dob resignFirstResponder];


    if ([self.view viewWithTag:9]) 
    {
        return;
    }
    CGRect toolbarTargetFrame = CGRectMake(0, self.view.bounds.size.height-216-44, 320, 44);
    CGRect datePickerTargetFrame = CGRectMake(0, self.view.bounds.size.height-216, 320, 216);

    UIView *darkView = [[UIView alloc] initWithFrame:self.view.bounds ];
    darkView.alpha = 0;
    darkView.backgroundColor = [UIColor blackColor];
    darkView.tag = 9;
    UITapGestureRecognizer *tapGesture = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissDatePicker:)] ;
    [darkView addGestureRecognizer:tapGesture];
    [self.view addSubview:darkView];

    datePicker = [[UIDatePicker alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height+44, 320, 216)] ;
    datePicker.datePickerMode=UIDatePickerModeDate;
    datePicker.tag = 10;
    [datePicker addTarget:self action:@selector(changeDate:) forControlEvents:UIControlEventValueChanged];

    [self.view addSubview:datePicker];

    UIToolbar *toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, self.view.bounds.size.height, 320, 44)] ;
    toolBar.tag = 11;
    toolBar.barStyle = UIBarStyleBlackTranslucent;
    UIBarButtonItem *spacer = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil] ;
    UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:@selector(dismissDatePicker:)] ;
    [toolBar setItems:[NSArray arrayWithObjects:spacer, doneButton, nil]];
    [self.view addSubview:toolBar];

    [UIView beginAnimations:@"MoveIn" context:nil];
    toolBar.frame = toolbarTargetFrame;
    datePicker.frame = datePickerTargetFrame;
    darkView.alpha = 0.5;
    [UIView commitAnimations];
    //[datePicker addTarget:self action:@selector(dateText:)forControlEvents:UIControlEventValueChanged];
    //NSDateFormatter *_dateFormatter = [[NSDateFormatter alloc] init];
    //_dateFormatter.dateStyle = NSDateFormatterFullStyle;
    //dateText.text = [NSString stringWithFormat:@"%@",
    // [_dateFormatter stringFromDate:datePicker.date]];

    //[self.tableview reloadData];

    }

I added the resignfirstresponder also,since its showing the same error

    - (BOOL)textFieldShouldReturn:(UITextField *)textField
    {
    return [textField resignFirstResponder];
    return [txt1 resignFirstResponder];//dob textfield
    }

enter image description here

Answer 1

使用UITextField的委托方法

 - (BOOL)textFieldShouldBeginEditing:(UITextField *)textField
 {
   if(textField == dob-text )
     //load picker here
     return NO; //hide keyboard
   else
     return YES; //show keyboard
 }

Answer 2

更好的解决方案是将UIPickerView设置为inputView的UITextField。

您可以将UIToolBar设置为inputAccessoryView的inputView。这样iOS将处理所有UIPickView的显示。

只需将属性设置为正确的视图：

self.dateTextField.inputView = self.datePicker;
self.dateTextField.inputAccessoryView = self.inputToolbar;

另一方面，使用viewWithTag:方法获取视图意味着您正在循环浏览所有视图。为什么不为这些视图创建属性。它会变得不那么混乱，可能会更快。

Answer 3

尝试使用textFieldDidBeginEditing

-(void) textFieldDidBeginEditing:(UITextField *)textField{
  [textField resignFirstResponder];
}

Answer 4

- (void)textFieldDidBeginEditing:(UITextField *)textField
{
    datePicker.hidden = NO;
    [textField resignFirstResponder];
}

Answer 5

首先，文本字段不应该有弹出窗口 - 既不是选择器也不是弹出窗口，也不是任何东西最好的解决方案是放置一个按钮类型自定义设置图像，如日期选择器图像和添加选择器 - 在这种情况下你不会有任何问题文本字段弹出，外观也会很好，你可以自定义它根据您的要求。

在编辑时禁用UITextField上的键盘

5 个答案: