在iPhone的虚拟键盘中添加新按钮？

如何将新按钮添加到iPhone的虚拟键盘（触摸UITextField时显示的键盘）？

以下是我在键盘左下角添加“完成”按钮的代码

- (void)keyboardWillShow:(NSNotification *)note {
    // create custom button
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
    doneButton.frame = CGRectMake(0, 163, 106, 53);
    doneButton.adjustsImageWhenHighlighted = NO;
    [doneButton setTitle:@"Done" forState:UIControlStateNormal];
    //[doneButton setImage:[UIImage imageNamed:@"DoneUp.png"] forState:UIControlStateNormal];
    //[doneButton setImage:[UIImage imageNamed:@"DoneDown.png"] forState:UIControlStateHighlighted];
    [doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];

    // locate keyboard view
    UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
    for(int i=0; i<[tempWindow.subviews count]; i++) {
        keyboard = [tempWindow.subviews objectAtIndex:i];
        // keyboard view found; add the custom button to it
        if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES)
        {
            if(isNumPad==YES)
            {
                //[keyboard addSubview:doneButton]; 
            }
            else
            {
                [doneButton removeFromSuperview];
            }
        }
        else 
        { 
            [doneButton removeFromSuperview];

        }}
}
- (void)doneButton:(id)sender 
{

//YOUR CODE ON DONE BUTTON CLICKED
}

你需要做的是接受This的想法，在键盘上的任何位置设置你的按钮

- (void)keyboardWillShow:(NSNotification *)note {
    // create custom button
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
    doneButton.frame = CGRectMake(0, 163, 106, 53);
    doneButton.adjustsImageWhenHighlighted = NO;
    [doneButton setTitle:@"Done" forState:UIControlStateNormal];
    //[doneButton setImage:[UIImage imageNamed:@"DoneUp.png"] forState:UIControlStateNormal];
    //[doneButton setImage:[UIImage imageNamed:@"DoneDown.png"] forState:UIControlStateHighlighted];
    [doneButton addTarget:self action:@selector(doneButton:) forControlEvents:UIControlEventTouchUpInside];

    // locate keyboard view
    UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
    for(int i=0; i<[tempWindow.subviews count]; i++) {
        keyboard = [tempWindow.subviews objectAtIndex:i];
        // keyboard view found; add the custom button to it
        if([[keyboard description] hasPrefix:@"<UIKeyboard"] == YES)
        {
            if(isNumPad==YES)
            {
                //[keyboard addSubview:doneButton]; 
            }
            else
            {
                [doneButton removeFromSuperview];
            }
        }
        else 
        { 
            [doneButton removeFromSuperview];

        }}
}
- (void)doneButton:(id)sender 
{

//YOUR CODE ON DONE BUTTON CLICKED
}

-（无效）键盘将显示：（NSNotification*）注释{
//创建自定义按钮
UIButton*doneButton=[UIButton按钮类型：UIButtonTypeCustom]；
doneButton.frame=CGRectMake（0,163,106,53）；
doneButton.adjustsImageWhenHighlighted=否；
[完成按钮设置标题：@“完成”状态：UIControlStateNormal]；
//[doneButton setImage:[UIImage ImageName:@“DoneUp.png”]用于状态：UIControlStateNormal]；
//[doneButton setImage:[UIImage ImageName:@“DoneDown.png”]用于状态：UIControlStateHighlighted]；
[doneButton addTarget:self action:@selector（doneButton:）for ControlEvents:UIControlEventTouchUpInside]；
//定位键盘视图
UIWindow*tempWindow=[[UIApplication sharedApplication]windows]对象索引：1]；
对于（inti=0；i，我非常确定有一种非黑客的方法可以解决这个问题。我建议您研究将一个与您的文本字段关联起来