键盘显示时移动特定的UITextField [英] Move specific UITextField when the Keyboard show

问题描述

我按照Apple文档在键盘出现时向上移动文本字段。
代码工作正常我的问题是我需要将一个特定的文本字段移向另一个，而不是实现代码Apple我选择的每个文本字段都向上移动...我该怎么做才能移动特定的textField和不是全部吗？

非常感谢，我插入以下代码

   - （void）viewWillAppear：（BOOL）animated 
 {
 [[NSNotificationCenter defaultCenter] addObserver：self 
 selector：@selector（keyboardWasShown :) 
 name：UIKeyboardDidShowNotification object ：零]; 
 
 [[NSNotificationCenter defaultCenter] addObserver：self 
 selector：@selector（keyboardWillBeHidden :) 
 name：UIKeyboardWillHideNotification object：nil]; 
 
} 
 
 //在发送UIKeyboardDidShowNotification时调用。 
  - （void）keyboardWasShown：（NSNotification *）aNotification {
 NSDictionary * info = [aNotification userInfo]; 
 CGSize kbSize = [[info objectForKey：UIKeyboardFrameBeginUserInfoKey] CGRectValue] .size; 
 CGRect bkgndRect = changePasswordTextField.superview.frame; 
 bkgndRect.size.height  -  = kbSize.height; 
 [scrollView setContentOffset：CGPointMake（0.0，changePasswordTextField.frame.origin.y + kbSize.height）animated：YES]; 
} 
 
 //在发送UIKeyboardWillHideNotification时调用
  - （void）keyboardWillBeHidden：（NSNotification *）aNotification {
 
 
 [ scrollView setContentOffset：CGPointZero animated：YES]; 
} 
  

解决方案

您可以通过以下方式实现您的功能执行 textFieldDidBeginEditing 键盘打开文本字段时将调用的方法。因此，您可以在此方法中更改textfield的框架，如下所示。

   - （void）textFieldDidBeginEditing：（UITextField *）textField {
 [textField setFrame：CGRectMake（0.0，textField.frame.origin.y-VALUE，textField.frame.size.width，textField.frame.size.height）animated：YES]; 
 // VALUE =您要垂直向上移动的文字字段
} 
  

现在，要处理键盘隐藏事件，您可以在 textFieldDidEndEditing 方法中将文本字段的框架设置为其原点，如下所示。

   - （void）textFieldDidEndEditing：（UITextField *）textField {
 [textField setFrame：CGRectMake（0.0，textField.frame.origin.y + VALUE，textField.frame .size.width，textField.frame.size.height）animated：YES]; 
 // VALUE =您要垂直向下移动的文字字段
} 
  

我希望它可以帮到你。

I followed the Apple documentation to move a textfield upwards when the keypad appears. The code works fine my problem is that I need that one specific textfield is moved towards the other, instead of implementing the code Apple every textfield I select is moved upwards ... How can I do to move a specific textField and not all?

Thank you very much, I insert the following code used

-(void)viewWillAppear:(BOOL)animated 
{
    [[NSNotificationCenter defaultCenter] addObserver:self
                                             selector:@selector(keyboardWasShown:)
                                                 name:UIKeyboardDidShowNotification object:nil];

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

}

// Called when the UIKeyboardDidShowNotification is sent.
- (void)keyboardWasShown:(NSNotification*)aNotification {
    NSDictionary* info = [aNotification userInfo];
    CGSize kbSize = [[info objectForKey:UIKeyboardFrameBeginUserInfoKey] CGRectValue].size;
    CGRect bkgndRect = changePasswordTextField.superview.frame;
    bkgndRect.size.height -= kbSize.height;
    [scrollView setContentOffset:CGPointMake(0.0, changePasswordTextField.frame.origin.y+kbSize.height) animated:YES];
}

// Called when the UIKeyboardWillHideNotification is sent
- (void)keyboardWillBeHidden:(NSNotification*)aNotification {


    [scrollView setContentOffset:CGPointZero animated:YES];
}

解决方案

You can achieve your functionality by following steps.

1. Set delegate of your UITextField.

2. Implement textFieldDidBeginEditing method which will be called when keyboard open for textfield. So you may change frame of textfield in this method as below.

   -(void)textFieldDidBeginEditing:(UITextField *)textField{
        [textField setFrame:CGRectMake(0.0, textField.frame.origin.y-VALUE,textField.frame.size.width,textField.frame.size.height) animated:YES];
        // VALUE = textfield you want to move upward vertically
   }
   

3. Now, to handle keyboard hiding event, you can set frame of your textfield to its origin in textFieldDidEndEditing method as below.

   - (void)textFieldDidEndEditing:(UITextField *)textField{
         [textField setFrame:CGRectMake(0.0, textField.frame.origin.y+VALUE,textField.frame.size.width,textField.frame.size.height) animated:YES];
         // VALUE = textfield you want to move downward vertically
   }
   

I hope it may help you.

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