iPhone中文本字段的键盘-使用字母数字字符

Posted 2023-02-24

【中文标题】iPhone中文本字段的键盘-使用字母数字字符

【英文标题】：keyBoard of textfield in iPhone- using alphanumeric chararacter

【发布时间】：2010-10-11 06:27:56

【问题描述】：

我是 iPhone 技术的新手，我想使用 TextField，但是当我使用键盘时，我不能使用字母数字字符。它仅适用于字母单词。

我用过的一些函数如下：-

-(BOOL)textFieldShouldReturn:(UITextField *)theTextField 

  if(theTextField == txtanswer) 
    [txtanswer resignFirstResponder];
  
  return YES;




- (void)textFieldDidBeginEditing:(UITextField *)textField

    CGRect textFieldRect =
  //[self.view.window convertRect:textField.bounds fromView:textField];
    CGRect viewRect =
  //[self.view.window convertRect:self.view.bounds fromView:self.view];
  CGFloat midline = textFieldRect.origin.y + 0.5 * textFieldRect.size.height;
    CGFloat numerator =
  midline - viewRect.origin.y
  - MINIMUM_SCROLL_FRACTION * viewRect.size.height;
    CGFloat denominator =
  (MAXIMUM_SCROLL_FRACTION - MINIMUM_SCROLL_FRACTION)
  * viewRect.size.height;
    CGFloat heightFraction = numerator / denominator;
  if (heightFraction < 0.0)
    
        heightFraction = 0.0;
    
    else if (heightFraction > 1.0)
    
        heightFraction = 1.0;
    

  UIInterfaceOrientation orientation =
  [[UIApplication sharedApplication] statusBarOrientation];
    if (orientation == UIInterfaceOrientationPortrait ||
        orientation == UIInterfaceOrientationPortraitUpsideDown)
    
        animatedDistance = floor(PORTRAIT_KEYBOARD_HEIGHT * heightFraction);
    
    else
    
        animatedDistance = floor(LANDSCAPE_KEYBOARD_HEIGHT * heightFraction);
    

  CGRect viewFrame = self.view.frame;
    viewFrame.origin.y -= animatedDistance;

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

    [self.view setFrame:viewFrame];

    [UIView commitAnimations];


- (BOOL)textFieldShouldBeginEditing:(UITextField *)textField

  if(cehc==2)
  


  if(textField == txtanswer) 

    [txtanswer resignFirstResponder];
  return YES;

-(IBAction) textFieldDoneEditing : (id) sender
    CGRect viewFrame = self.view.frame;
    viewFrame.origin.y += animatedDistance;

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

    [self.view setFrame:viewFrame];

    [UIView commitAnimations];


- (void)textFieldDidEndEditing:(UITextField *)textField;

    CGRect viewFrame = self.view.frame;
    viewFrame.origin.y += animatedDistance;

    [UIView beginAnimations:nil context:NULL];
    [UIView setAnimationBeginsFromCurrentState:YES];
    [UIView setAnimationDuration:KEYBOARD_ANIMATION_DURATION];

    [self.view setFrame:viewFrame];

    [UIView commitAnimations];

请帮我解决这个问题

谢谢 库纳尔

【问题讨论】：

对不起，我不明白这个问题。有什么你想做却做不到的事？

【参考方案1】：

XCode 文档中的 UIKeyboardType 是否对您有帮助（或者我误解了您的问题）？请注意，似乎有 3 种不同的数字键盘类型。

【讨论】：

我想是的，当我使用分离类键盘应用程序时，该功能也不起作用。

表示我也无法使用 tht 类更改字符。