Question

因此，numpad键盘默认没有“完成”或“下一步”按钮，所以我想添加一个。在iOS 6及更低版本中，有一些技巧可以在键盘上添加一个按钮，但它们似乎无法在iOS 7中运行。

首先，我订阅显示通知的键盘

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

然后我尝试在键盘出现时添加一个按钮：

- (void)keyboardWillShow:(NSNotification *)note 
{
    // create custom button
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeSystem];
    doneButton.frame = CGRectMake(0, 50, 106, 53);
    doneButton.adjustsImageWhenHighlighted = NO;
    [doneButton setTitle:@"Done" forState:UIControlStateNormal];
    [doneButton addTarget:self action:@selector(dismissKeyboard) forControlEvents:UIControlEventTouchUpInside];

    // locate keyboard view
    UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
    UIView* keyboard;
    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)
        [keyboard addSubview:doneButton];
    }
}

但是for循环没有运行，因为它找不到任何子视图。有什么建议？我找不到iOS7的任何解决方案，所以我应该采用不同的方式吗？

编辑：感谢所有关于工具栏人员的建议，但我宁愿不去那条路，因为我的空间很差（而且有点难看）。

Answer 1

更安全的方法是使用UIToolBar Done按钮作为inputAccessoryView。

示例代码：

UIToolbar *keyboardDoneButtonView = [[UIToolbar alloc] init];
[keyboardDoneButtonView sizeToFit];
UIBarButtonItem *doneButton = [[UIBarButtonItem alloc] initWithTitle:@"Done"
                                                               style:UIBarButtonItemStyleBordered target:self
                                                              action:@selector(doneClicked:)];
[keyboardDoneButtonView setItems:[NSArray arrayWithObjects:doneButton, nil]];
txtField.inputAccessoryView = keyboardDoneButtonView;

您的-doneClicked方法应如下所示：

- (IBAction)doneClicked:(id)sender
{
    NSLog(@"Done Clicked.");
    [self.view endEditing:YES];
}

示例代码Swift：

let keyboardDoneButtonView = UIToolbar.init()
keyboardDoneButtonView.sizeToFit()
let doneButton = UIBarButtonItem.init(barButtonSystemItem: UIBarButtonSystemItem.Done, 
                                                   target: self, 
                                                   action: Selector("doneClicked:")))    

keyboardDoneButtonView.items = [doneButton]
textFieldInput.inputAccessoryView = keyboardDoneButtonView

您的-doneClicked方法应如下所示：

func doneClicked(sender: AnyObject) {
  self.view.endEditing(true)
}

Answer 2

更简单的方法：

Swift 3.0及以上：

func addDoneButton() {
    let keyboardToolbar = UIToolbar()
    keyboardToolbar.sizeToFit()
    let flexBarButton = UIBarButtonItem(barButtonSystemItem: .flexibleSpace,
        target: nil, action: nil)
    let doneBarButton = UIBarButtonItem(barButtonSystemItem: .done,
        target: view, action: #selector(UIView.endEditing(_:)))
    keyboardToolbar.items = [flexBarButton, doneBarButton]
    textField.inputAccessoryView = keyboardToolbar
}

Swift 2.3及以下：

func addDoneButton() {
    let keyboardToolbar = UIToolbar()
    keyboardToolbar.sizeToFit()
    let flexBarButton = UIBarButtonItem(barButtonSystemItem: .FlexibleSpace,
        target: nil, action: nil)
    let doneBarButton = UIBarButtonItem(barButtonSystemItem: .Done,
        target: view, action: #selector(UIView.endEditing(_:)))
    keyboardToolbar.items = [flexBarButton, doneBarButton]
    textField.inputAccessoryView = keyboardToolbar
}

目标C ：

- (void)addDoneButton {
    UIToolbar* keyboardToolbar = [[UIToolbar alloc] init];
    [keyboardToolbar sizeToFit];
    UIBarButtonItem *flexBarButton = [[UIBarButtonItem alloc]
    initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
    target:nil action:nil];
    UIBarButtonItem *doneBarButton = [[UIBarButtonItem alloc]
    initWithBarButtonSystemItem:UIBarButtonSystemItemDone
    target:self.view action:@selector(endEditing:)];
    keyboardToolbar.items = @[flexBarButton, doneBarButton];
    self.textField.inputAccessoryView = keyboardToolbar;
}

编辑：

我创建了一个名为DCKit的有用库，它已经开箱即用了工具栏：

它还有许多其他很酷的功能。

Answer 3

这是在iOS7数字键盘中投射完成按钮的简单方法。在UITextField的下面委托方法中，添加键盘显示的通知。

-(void)textFieldDidBeginEditing:(UITextField *)textField {

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

现在实现方法keyboardWillShow，如下所示。在这里，我们需要特别注意iOS7。

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

if (SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(@"7.0")) {
    dispatch_async(dispatch_get_main_queue(), ^{
        UIView *keyboardView = [[[[[UIApplication sharedApplication] windows] lastObject] subviews] firstObject];
        [doneButton setFrame:CGRectMake(0, keyboardView.frame.size.height - 53, 106, 53)];
        [keyboardView addSubview:doneButton];
        [keyboardView bringSubviewToFront:doneButton];

        [UIView animateWithDuration:[[note.userInfo objectForKey:UIKeyboardAnimationDurationUserInfoKey] floatValue]-.02
                              delay:.0
                            options:[[note.userInfo objectForKey:UIKeyboardAnimationCurveUserInfoKey] intValue]
                         animations:^{
                             self.view.frame = CGRectOffset(self.view.frame, 0, 0);
                         } completion:nil];
    });
}else {
    // locate keyboard view
    dispatch_async(dispatch_get_main_queue(), ^{
        UIWindow* tempWindow = [[[UIApplication sharedApplication] windows] objectAtIndex:1];
        UIView* keyboard;
        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)
                [keyboard addSubview:doneButton];
        }
    });
  }
}

现在将此宏添加到合适的标头以检测SYSTEM_VERSION

#define SYSTEM_VERSION_GREATER_THAN_OR_EQUAL_TO(v) ([[[UIDevice currentDevice] systemVersion] compare:v options:NSNumericSearch] != NSOrderedAscending)

Answer 4

由于我不得不翻译它，所以只使用Swift版本的答案：

   @IBOutlet weak var numberTextField: UITextField!

    override func viewDidLoad() {
        addDoneButtonTo(numberTextField)
    }

    // MARK: Done for numberTextField

    private func addDoneButtonTo(textField: UITextField) {
        let flexBarButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.FlexibleSpace, target: nil, action: nil)
        let doneBarButton = UIBarButtonItem(barButtonSystemItem: UIBarButtonSystemItem.Done, target: self, action: "didTapDone:")
        let keyboardToolbar = UIToolbar()
        keyboardToolbar.sizeToFit()
        keyboardToolbar.items = [flexBarButton, doneBarButton]
        textField.inputAccessoryView = keyboardToolbar
    }

    func didTapDone(sender: AnyObject?) {
        numberTextField.endEditing(true)
    }

Answer 5

您可以使用

myTextField.inputAccessoryView = _inputView;

输入附件视图是始终通过键盘的视图，并使用[textfield resignFirstResponder]

关闭

在输入视图上输入并执行文本字段的resignfirst响应。

Answer 6

只需使用

yourTextField.inputAccessoryView

希望你能帮忙

Answer 7

enter code here

1. register the controller to the notification

- (void)viewWillAppear:(BOOL)animated
{
    [super viewWillAppear:animated];
    // Keyboard events
    [[NSNotificationCenter defaultCenter] addObserver:self
                                         selector:@selector(keyboardWillShow:)
                                             name:UIKeyboardWillShowNotification
                                           object:nil];

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

2. don't forget to remove the controller from the notification centre

-(void)viewWillDisappear:(BOOL)animated
{
    [super viewWillDisappear:animated];
    [self.view endEditing:YES];
    [[NSNotificationCenter defaultCenter] removeObserver:self];
}

3. implement keyboard notification handlers

- (void)keyboardWillShow:(NSNotification *)notification {

// create custom button
    UIButton *doneButton = [UIButton buttonWithType:UIButtonTypeCustom];
    doneButton.frame = CGRectMake(0, 107, 106, 53);
    [doneButton setTitle:@"Done" forState:UIControlStateNormal];
    [doneButton addTarget:self  action:@selector(doneButton:)forControlEvents:UIControlEventTouchUpInside];

// save the reference to the button in order to use it in keyboardWillHide method
   self.donekeyBoardBtn = doneButton;

// to my mind no need to search for subviews
   UIWindow *windowContainigKeyboard = [[[UIApplication sharedApplication] windows]  lastObject];
   [windowContainigKeyboard addSubview:self.donekeyBoardBtn];
   self.donekeyBoardBtn.frame = CGRectMake(0., CGRectGetHeight(w.frame) -  CGRectGetHeight(self.donekeyBoardBtn.frame), CGRectGetWidth(self.donekeyBoardBtn.frame), CGRectGetHeight(self.donekeyBoardBtn.frame));
}

- (void)keyboardWillHide:(NSNotification *)notification {

    [self.donekeyBoardBtn removeFromSuperview];
}

4. implement done button action

- (void)doneButton:(id)sender{
   // add needed implementation
      [self.view endEditing:YES]; 
}

Answer 8

您需要检测自己是否在手机或iPad上，因为iPad在“数字”键盘上实现了返回键

Answer 9

Here是使用带键盘的工具栏显示按钮的示例..

Answer 10

键盘视图可以找到hasPrefix：@＆＃34; UIKeyboard＆＃34;，该按钮不能作为子视图添加。这是我的解决方案：enter link description here

如何在iOS中为numpad键盘添加“完成”按钮

10 个答案:

编辑：