Question

我正在使用uitextfield在uitableview中输入国家/地区值。当点击该字段时，我正在显示已加载国家/地区值的tableview。

当点击任何单元格时，它返回到相同的表单并在country字段中添加所选值.i表示我将所选值分配给viewwillappear方法内的文本字段。在cuntry字段内设置文本后，我想辞去键盘。所以我添加了resignFirstResponder。但它并没有让键盘退出。

请帮帮我。下面是我的代码

 - (void)textFieldDidBeginEditing:(UITextField *)textField;
    {
      if( textField == self.myCountryField ){

        aCountryListView = 
            [[LCCountryListViewController alloc]init]; 

        UINavigationController *navigationController = 
            [[UINavigationController alloc] 
             initWithRootViewController:aCountryListView];

        [self presentModalViewController:navigationController animated:YES];

      }
    }
-(void)viewWillAppear:(BOOL)animated{
//-----------------------------------

  self.myCountryField.text = aCountryListView.mySelectedCountry;

  [self.myCountryField resignFirstResponder];

  [[NSNotificationCenter defaultCenter] addObserver:self 
    selector:@selector(keyboardWillShow:) 
    name:UIKeyboardWillShowNotification object:nil];

  [[NSNotificationCenter defaultCenter] addObserver:self 
  selector:@selector(keyboardWillHide:) name:UIKeyboardWillHideNotification object:nil];

}

// Customize the appearance of table view cells.
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:
(NSIndexPath *)indexPath 
//-------------------------------------------------------------------------------
{  
  static NSString *CellIdentifier = @"PoetNameCell";

  UITableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier];

  if (cell == nil) 
  {
      cell = [[UITableViewCell alloc] initWithStyle:UITableViewCellStyleDefault reuseIdentifier:CellIdentifier];

    cell.selectionStyle = UITableViewCellSelectionStyleNone;

   cell.backgroundColor = [UIColor clearColor];

    if( indexPath.row == 0 ){

      UILabel *aLblTitle = [[UILabel alloc]initWithFrame:CGRectMake(5, 5, 220, 30)];
      aLblTitle.backgroundColor = [UIColor clearColor];
      aLblTitle.font = [UIFont fontWithName:@"Palatino-Bold" size:16.0];
      aLblTitle.text = NSLocalizedString(@"Country","Country");
      aLblTitle.textColor = [UIColor whiteColor];
      [cell.contentView addSubview:aLblTitle];

      myCountryField = [[UITextField alloc]initWithFrame:CGRectMake(133,5,150,30)];
      myCountryField.backgroundColor = [UIColor whiteColor];
      myCountryField.delegate = self;
      myCountryField.borderStyle = UITextBorderStyleRoundedRect;

      [cell.contentView addSubview:myCountryField];
    }
  return cell;
}

Answer 1

使用以下代码，希望它能帮到你。

- (BOOL)textFieldShouldReturn:(UITextField *)textField 
 {

  [self.view endEditing:YES];

  return YES;
}

确保您将代理人与fileowner中的xib-file相关联。或者在viewDidload中使用以下代码。

yourtextfield.delegate=self;

并在您的.h文件中使用<UITextfielddelegate>

Answer 2

希望在添加UITextField委托

时，以下代码可以正常工作

 - (BOOL)textFieldShouldReturn:(UITextField *)textField 
 {

  [self.myCountryField resignFirstResponder];

  return YES;
}

Answer 3

如何使用它：

[[UIApplication sharedApplication] sendAction:@selector(resignFirstResponder)
                                           to:nil
                                         from:nil
                                     forEvent:nil];

resignFirstResponder不起作用

3 个答案: